Project Task Scenario Overview 2
Project Task Scenario Overview 2
As the lead Project Manager for HIA Construction, your biggest priority at the moment is Lot 70 Affordability Street project. The plans have been provided to you, but the HIA Construction General Director Jack Bright has asked you to look over the proposed construction, and make sure that structural principles are met.
This means that youll need to do an analysis of the structure from the bottom up, checking against the National Construction Code (NCC) and the appropriate Australian Standards to ensure that the house is structurally sound, can resist the loads that will be imposed on it, and is compliant with the requirements of standards and codes.
You have been provided with the following plans and specification documents for the build at Lot 70 Affordability Street:
(ID2x) V2 Lot 70 Affordability St Specifications
(ID4p) V2 Lot 70 Affordability St Elevation Sections Details
(ID4q) V2 Lot 70 Affordability St Ceiling Layout
(ID4s) V2 Lot 70 Affordability St Floor Plans
(ID4t) V2 Lot 70 Affordability St Roof Layout
(ID4u) V2 Lot 70 Affordability St Site Plan Contours
(ID4v) V2 Lot 70 Affordability St Site Plan
(ID4w) V2 Lot 70 Affordability St Slab Layout
(ID14r) Lot 70 Affordability St Cut and Fill Plan
(ID14s) Lot 70 Affordability St Elevations (Truss)
(ID14t) Lot 70 Affordability St Truss Plan
You will also need to refer to the current NCC Volume Two while completing this Assessment Task. This has been provided to you as a supporting document:
(ID2z) NCC 2019 Volume Two Amendment 1
Collectively, all twelve (12) of these documents will need to be reviewed to complete this Assessment Task. Any additional supporting documents that are required for a specific question will be referenced within that Part of the Assessment Task as needed.
2 Part One Plan the BuildThe first step in determining the structural principles of the project will be looking at the region that the building is in and analysing the site.
IMPORTANT INFORMATION:
This project will require you to select the region that you locate the build in, from the four (4) provided options, which will influence your responses. All regions are equivalent, and no region is more difficult than any other. These regions have been provided to allow better context in relation to the climate zone requirements for your area.
Note that you must adhere to the requirements for a single nominated region throughout the entirety of this Assessment Task, as well as subsequent Assessment Tasks 3 and 4 in this unit.
It is recommended that you select the region based on your proximity to the following cities, according to the guide below:
CITY REGION CITY REGION CITY REGION
Adelaide 3 Cairns 4 Melbourne 2
Bendigo 2 Canberra 1 Newcastle 3
Brisbane 3 Darwin 4 Perth 3
Broome 4 Hobart 1 Sydney 2
Region 1
The house is located in a newer suburban development just outside of Hobart, Tasmania, 30km from the coast. More and more houses are popping up, and within the next five years you expect the area to be fairly highly developed. The house itself is near the top of a hill with a very slight rise. It has been calculated that the wind category for the building is N3. The area is primarily clay soil, with light reactivity. The area has an earthquake hazard factor of 0.08, and the area is not designated as a bushfire prone area (BAL LOW).
Region 2
The house is located in a newer suburban development just outside of Penrith, New South Wales. More and more houses are popping up, and within the next five years you expect the area to be fairly highly developed. The house itself is near the top of a hill with a very slight rise. It has been calculated that the wind category for the building is N3. The area is primarily clay soil, with light reactivity. The area has an earthquake hazard factor of 0.08, and the area is not designated as a bushfire prone area (BAL LOW).
Region 3
The house is located in a newer suburban development just outside of Adelaide, South Australia. More and more houses are popping up, and within the next five years you expect the area to be fairly highly developed. The house itself is near the top of a hill with a very slight rise. It has been calculated that the wind category for the building is N3. The area is primarily clay soil, with light reactivity. The area has an earthquake hazard factor of 0.08, and the area is not designated as a bushfire prone area (BAL LOW).
Region 4
The house is located in a newer suburban development approximately 100km inland from Darwin, Northern Territory. More and more houses are popping up, and within the next five years you expect the area to be fairly highly developed. The house itself is near the top of a hill with a very slight rise. It has been calculated that the wind category for the building is N3. The area is primarily clay soil, with light reactivity. The area has an earthquake hazard factor of 0.08, and the area is not designated as a bushfire prone area (BAL LOW).
Question 1
a) Which region are you basing the construction in?
REGION: Region 2 Sydney - The house is located in a newer suburban development just outside of Penrith, New South Wales.
You will be asked to confirm this region in the following questions:
PART 2 QUESTION 7 PART APART 4 QUESTION 16 PART APART 6 QUESTION 8 PART AWe recommend you complete these fields before continuing to ensure that your answer is consistent.
b) What is the class of the building, as per the NCC?
A single-family residential house in a suburban development typically falls under the Class 1a category
c) What is the intended use of the building, as per the NCC?
Question 2
a) According to the NCC climate map, which climate zone is the building located in?
Penrith, New South Wales, falls within Climate Zone 5
b) Using the NCC energy efficiency section, determine the minimum total R-values
for the wall and roof systems that must be met, and the roof direction of heat flow.
Assume that the concrete tiles have a solar absorptance value of 0.9.
Wall R Value: For non-south walls in Climate Zone 5 (e.g., north, east, and west walls), the minimum Total R-value required is 2.8 mK/W, which is equivalent to a U-value of 0.36 W/mK.
For south walls in Climate Zone 5, the minimum Total R-value required is higher, at 3.2 mK/W, which is equivalent to a U-value of 0.31 W/mK
Roof Direction of Heat Flow: For downward heat flow (i.e., heat flow from the inside of the house to the outside), the minimum Total R-value is 6.3 mK/W, equivalent to a U-value of 0.16 W/mK.
For upward heat flow (i.e., heat flow from the outside to the inside), the minimum.
Roof R Value: Total R-value is 4.1 mK/W, equivalent to a U-value of 0.24 W/mK
Question 3
Complete the table below:
NCC Requirements Yes No
a) Are there additional bushfire requirements that must be adhered to in the region? b) Has the building been designed to meet required bushfire risk requirements? c) Based on the alpine areas defined in the NCC, are there alpine design requirements that must be adhered to? d) Has the building been designed to meet required alpine design requirements? e) Based on the high wind areas as defined in the NCC, are there high wind design requirements that must be adhered to? f) Has the building been designed in accordance with high wind design requirements? Question 4
AS 1170.4 requires the lateral wind force resistance to be designed according to one of the following guidelines:
Guideline 1: Class 1a or 1b dwellings under 8.5m with a hazard rating 0.11 - Must comply with AS1684, AS 3600, AS 3700, AS 4100, AS/NZS 1664, AS 1720.1 or NASH Standard part 1
Guideline 2: Class 1a or 1b dwellings under 8.5m with a hazard rating > 0.11 - AS 1170.4 Appendix A Paragraph A2 or design in accordance with Section 2 for Importance Level 2 Structures
Guideline 3: Class 1a or 1b dwellings over 8.5m - AS 1170.4 design in accordance with Section 2 for Importance Level 2 Structures
a) Which guideline must Lot 70 Affordability St comply with?
Choose an item:
b) To satisfy the requirements of the guideline, what standard will wind force resistance
be designed to?
Question 5
Before you perform any further work on the design of the house, you want to get onto the site and inspect it to make sure it matches up with your analysis. You have organised the land surveyor to come out and prepare a geotechnical report.
You want to check the surrounding areas to ensure the wind category was assessed correctly, and the bushfire hazard level. The images provided below illustrate the site conditions.
Review the provided images of the site, and complete the pre-commencement analysis checklist below, indicating whether the analysis item is correct.
PRE-COMMENCEMENT SITE ANALYSIS CHECKLIST
Analysis Item Yes No Comments (If required)
Terrain Category 2.5 Terrain with scattered houses, a few trees or isolated obstructions within 500m
Partial Shielding At least 2.5 obstructions per hectare
T2 Topography Category Situated in the top third of a small hill rise
Bushfire Hazard Level Low managed grasslands, no vegetation within 150m of site
Site located in an alpine area
2 Part Two FootingsPart Two Supporting Documents
(ID14o) AS 2870 - 2011 Excerpt
(ID14u) Lot 70 Affordability St Geotechnical Report
(ID14v) Set Up Polyethylene Builders Film Technical Data Sheet
The first step will be to plan the foundations of the house and determine the structural stability of the project. You have received the geotechnical report for the site and have received plans for the footings. These will need to be reviewed and analysed, to ensure the footings are suitable to support the structure.
Question 1
a) What type of footing is outlined in this build?
The following material specifications have been provided for the footings:
FOOTINGS MATERIAL SPECIFICATIONS
Concrete Type
20mPa Concrete 100mm Slump 20mm Aggregate
Reinforcing
3/L11 Trench Mesh
The following document will need to be reviewed to answer the questions below:
(ID14o) AS 2870 - 2011 Excerpt
According to AS 2870:
b) What are the minimum requirements for concrete type and reinforcing for the footings
of a raftered slab?
Concrete Type:
Reinforcing:
c) Do the nominated materials meet the performance requirements? Provide an
explanation to justify your answer.
Question 2
Review the below document to answer the following questions:
(ID14u) Lot 70 Affordability St Geotechnical Report
According to the Geotechnical Report:
a) What is the site soil classification?
b) What is the characteristic surface movement of the site?
c) What is the bearing capacity of the soil at the natural silt level?
According to AS 2870:
d) What is the required bearing capacity of the soil at foundation level?
Question 3
The RL of the slab is to be 10.650 for a finished floor level.
a) What RL will the footings need to be excavated to?
The paving around the house is to be set at 10.300 at the rear or the property.
b) What is the maximum cut depth that will be needed for the site?
According to the Geotechnical Report:
c) Will a second soil inspection be required after the site has been cut?
Choose an item:
d) What is the maximum rolled fill that will be required for the site, to support the
finished RL for the slab?
e) Will a second soil inspection be required after the site has been cut?
Choose an item:
Question 4
You will need to know the load being imposed on the slab to assess whether the footings are able to support the loads imposed by the structure. The following information has been provided:
Roof System Load 0.53kn per m2 of roofing (on average)
External Wall System 1.96kN/m of wall (on average)
Internal Wall System 0.6kN/m of wall (on average)
Live Load 1.5kPa/m2
Calculate the various loads below to two decimal places and show all working out:
a) What is the dead load that the wall system (both internal and external) will impose in
kN?
b) What is the dead load that the roofing system will impose in kN on the footings?
Keep in mind that the roof pitch must be factored in when measuring the area of the roofing system The roof has a pitch of 23 degrees, while the garage roof has a pitch of 5 degrees
c) What is the dead load that the structure will impose in kN on the footings as a whole?
d) What is the live load that the structure will impose in kN on the footings?
e) What is the total load in kN that the structure will be imparting on the footings?
Question 5
AS 2870 sets out the following parameters for a standard raftered slab design:
Design Parameter Range
ys (Characteristic Surface Movement) 10 mm to 70 mm if Hs > 3 m or
10 mm to 100 mm if Hs < 3 m
Differential Footing Deflection 5 mm to 50 mm
Span 5 m to 30 m
Beam Spacing 1.25 values in Figure 3.1 Clause 5.3.9 shall apply at external corners of the building. For Class E sites the beam spacing shall not exceed 5 m.
Beam Depth 250 mm to 1200 mm
Minimum Depth of Any Beam 0.8 max. beam depth
Beam Width 110 mm to 400 mm
Design Distributed Load 10 kPa
Design Edge Line Load 25 kN/m
You know that the characteristic surface movement and the differential footing deflection are within the parameters, but you need to determine if the slab design meets the other parameters.
Based on the plans for the slab, answer the following questions:
You must calculate your answers to two decimal places and show all working.
a) Complete the table below:
The span of the slab
The beam spacing throughout the slab
The beam spacing at external corners
The beam depth
The minimum allowable beam depth
The beam width
b) What is the design distributed load in kPa?
Calculated by dividing the total load of the house (Dead load plus live load) by the total area of the footings.
c) What is the design edge load in kN?
calculated by dividing the total load of the house (Dead load plus live load) by the total length of the external footings.
Question 6
Based on the information from AS 2870 and your analysis of the slab design:
a) Does the slab meet the parameters for a standard raftered slab?
Choose an item:
b) Explain why or why not.
c) If not, what changes would be required to meet the parameters?
If no changes are required to meet the parameters, please write N/A
Question 7
a) As per PART 1 QUESTION 1, confirm the region you are basing the construction in:
REGION: Region 2 Sydney - The house is located in a newer suburban development just outside of Penrith, New South Wales.
b) What are the three (3) requirements that a vapour barrier must abide by in the
buildings region?
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-
-
Question 8
Review the below document to answer the below question:
(ID14v) Set Up Polyethylene Builders Film Technical Data Sheet
Which is the most appropriate film to be installed underneath the slab based on its width?
You need to take in to account the following:
The region of the building
Compliance with the NCC requirements
The dimensions of the site
The need to use a 4m wide polyethylene builders film
2 Part Three FlooringThe next step in analysing the structural integrity of the project is to analyse the flooring system.
Question 1
a) What is the flooring system for the building?
The following materials have been specified for the flooring:
FLOORING MATERIAL SPECIFICATIONS
Concrete Type
20mPa Concrete 100mm Slump 20mm Aggregate
Reinforcing
SL 82 Mesh
The following document will need to be reviewed to answer the questions below:
(ID14o) AS 2870 - 2011 Excerpt
According to AS 2870:
b) What are the minimum requirements for concrete type and reinforcing for the flooring
component of the slab?
Concrete Type:
Reinforcing:
c) Do the nominated materials meet the performance requirements? Provide an
explanation to justify your answer.
Question 2
The concrete slab is being poured separately to the footings and will need to be tied down to prevent movement.
a) What must be used for tie downs between the footing and slabs?
b) What distance should the tie downs be spaced at?
Question 3
AS 3600 provides the following information regarding the Fire Resistance Periods for insulation for Slabs:
a) What Fire Resistance Period will the slab be able to achieve?
The NCC requirement for separating walls states that they commence at the footings or ground slab, and as such, the fire resistance level for the separating wall applies to the slab.
b) Does the slab meet the fire resistance requirements as per the NCC? Explain your
answer.
Question 4
Do the NCC concrete slab-on-ground requirements for insulation and R-value apply to this project?Explain your answer.
Question 5
The specifications did not initially describe the flooring to be installed on top of the concrete slab, however the client has decided that they would like Tasmanian hardwood strip flooring, affixed directly to the slab.
Review the below document to answer the following questions:
(ID14w) Tasmanian Timber Flooring Installation Guide
a) How will the flooring be attached to the slab?
b) What expansion gap is required at walls, and across a 6m run according to the
installation guide?
c) Which orientation should the boards run, to minimise the need for expansion gaps in
each room?
Choose an item:
Part Three Supporting Documents
(ID14o) AS 2870 - 2011 Excerpt
(ID14w) Tasmanian Timber Flooring Installation Guide
2 Part Four Wall SystemsThe internal wall framing must be structurally sound, as it is required to resist racking forces of wind loads, while also holding the weight of the roofing system.
Question 1
What is the structural frame of the building?
Question 2
Complete the table below listing the specified materials for the components of the frame:
Component Type Dimension
Top plates:
Bottom plates:
Studs:
Noggins:
Question 3
a) What has been nominated as the spacings for the studs?
b) What has been nominated as the spacing for the noggins?
Question 4
According to the NCC an external fire resisting wall must:
have an FRL of not less than 60/60/60 when tested from the outside; or
be of masonry-veneer construction in which the external masonry veneer is not less than 90 mm thick; or
be of masonry construction not less than 90 mm thick.
a) Does the wall system for Lot 70 Affordability St meet these fire resistance
requirements?
Choose an item:
b) Explain why or why not.
Question 5
The following document will need to be reviewed to answer the subsequent questions:
(ID14p) AS 1684.2 - 2010 Excerpt
a) What the actual design feature is for Lot 70 Affordability St?
b) Does the timber framing comply with the limitations set forth in AS 1684 for timber
framing?
Use the table below to provide your responses:
AS 1684.2 Clause Design Feature Timber Framing Compliance
Clause 1.4.3 Plan
Choose an item:
Clause 1.4.4 No. of Storeys of Timber Framing
Choose an item:
Clause 1.4.5 Width
Choose an item:
Clause 14.6 Wall Height
Choose an item:
Clause 1.4.7 Roof Pitch
Choose an item:
Clause 1.4.9 Roof Types
Choose an item:
Question 6
The bracing design hasnt been provided to you yet, so you want to get ahead of the game and determine the amount of bracing that is necessary. Before you can do so, however, youll need to calculate the amount of force to be resisted using the formula area of elevation x racking force.
a) How is the Area of Elevation determined for a single storey building?
The Racking Force (pressure on an area of elevation in kPa/m2) is found in AS 1684.2 in the following tables:
Table 8.2 for a single storey, long end of a building (hip ends)
Table 8.4 for a single storey, short end of a building (hip ends)
The kPa/m2 is determined using roof pitch and width of the building, for the appropriate wind category.
b) Given that the building is in the N3 wind category determine the racking force of the
wind in kPa/m2 for the South Elevation and the West Elevation.
When using these tables, round up to the nearest value for width and roof pitch in order to calculate a more conservative solution.
South Elevation
Building Long End West Elevation
Building Short End
The area of elevation for this build has been provided for you:
South elevation: 28.8m2
West elevation: 41.8m2
c) Calculate the total racking force that will be acting on:
South Elevation
Building Long End West Elevation
Building Short End
The internal plasterboard will provide nominal bracing to the walls. The racking forces that the nominal bracing can resist has been calculated as follows, for the south elevation and the west elevation:
Bracing South Elevation
Building Long End West Elevation
Building Short End
Double sided nominal bracing 16.58kN 10.51kN
Single sided nominal bracing 10.66kN 2.65kN
Total nominal bracing 27.24kN 13.16kN
d) Determine the maximum percentage of the total racking force can be resisted by
nominal bracing.
e) When taking nominal bracing into account, how much racking force still needs to be
resisted by structural bracing, for each direction?
South Elevation
Building Long End West Elevation
Building Short End
Question 7
Two of the builders come to you with suggestions about the structural bracing that should be implemented.One builder prefers to work with tensioned metal straps with stud straps and recommends that you implement those.The other builder thinks that plywood bracing is a more appropriate bracing material in accordance with AS 1684.2 and recommends that you use this form of bracing.
For the tensioned metal straps with stud straps:
a) What are the minimum and maximum dimensions of a tensioned metal strap with
stud straps in metres?
Minimum:
Maximum:
b) How many metres of structural wall units using tensioned metal straps with stud
straps would be needed to resist the racking force in both directions?
South Elevation
Building Long End West Elevation
Building Short End
c) How many tensioned metal straps with stud straps would be needed to resist the total
racking forces in both directions, assuming you used the minimum dimensions?
South Elevation
Building Long End West Elevation
Building Short End
For plywood bracing:
d) What is the minimum width of a plywood bracing unit in metres?
Minimum:
e) How many metres of plywood bracing would be needed to resist the total racking
forces in both directions?
South Elevation
Building Long End West Elevation
Building Short End
f) How many plywood bracing units would be needed to resist the total racking forces in
both directions, assuming you used the minimum width?
South Elevation
Building Long End West Elevation
Building Short End
Question 8
You would prefer to work with only one type of bracing and must select one of the two (2) options.
a) Based on the required minimum sizes of each type of bracing, and the available
locations in each direction, which option is more appropriate for the bracing requirements?
Choose an item:
b) Explain why the other bracing type is not appropriate for this building.
c) What is the maximum spacing for the bracing walls in the building based on the roof
pitch and the ceiling depth in metres?
Assume the ceiling depth is equal to half the width of the building.
Maximum:
Question 9
You must now design the bracing plan for Lot 70 Affordability St.AS 1684.2 states that nominal bracing does not contribute to bracing resistance where it occurs in the same section of wall as structural bracing. As such, you will need to install one extra unit in the south direction, and two extra units in the west direction on top of the calculated units, to account for the loss of nominal bracing.
Using the Lot 70 Affordability St Floor Plan, mark up a copy of the plan identifying the areas that you will install your selected bracing units in both directions, assuming you are using the minimum dimensions of the unit.Your bracing plan must comply with the requirements of AS 1684.2 regarding spacing of the bracing walls, locations of bracing, and available wall space.
Your completed Bracing Plan must be uploaded to Canvas alongside your assessment workbook once complete.
Question 10
a) What are the nominal fixings for wall frames for each joint?
Use the table below to provide your responses:
Joint Nominal Fixings for Wall Frames
Plates to Studs:
Noggings to Studs:
Timber Braces to Studs:
Lintels to Jamb Stud:
Bottom Plates to Concrete Slab:
Question 11
For the N3 wind categories, all single-story frame to support tie down points are specific and must be fixed in a manner that resists uplift forces.The frame-to-slab tie down points are as follows:
a) Determine the uplift force for each of the labelled tie down points in the diagram
above, based on their uplift load width and a fixing spacing of 600mm.
As the Wind Uplift Load Width is between values in the table, use the higher value of 7500mm to provide a more conservative solution
Tie Down Point A:
Tie Down Point B:
The MPG10 that is being used for the frame is seasoned and does not have heart-in material.
b) Determine the joint group applicable to the frame.
c) Determine and list an appropriate tie down connection for the two tie down points.
Question 12
What are the size tolerances for the members used in the frame?
Question 13
Use the table below to list the typical shrinkage for each of the members based on the timber type:
Top Plates:
Lintels:
Bottom Plate:
Question 14
Services will need to be run through some of the studs and plates.
What are the maximum limits of service penetrations?
Question 15
You need to run a lintel over the window in the formal lounge, but you are not confident that the MGP10 Pine will be sufficient to hold the weight of the roof. You want to ensure that you are using a strong component, as this is a large window, and the lintels will need to be able to resist deflection under the weight of the roof.
You have the option of using a solid rectangular piece of timber, or using a manufactured LVL box beam, as shown in cross section below:
In order to determine the component that will best resist deflection under the weight of the roof, you will need to assess the sectional modulus of each shape listed below:
Shape Sectional Modulus Along the x-axis
Solid Timber Piece 30,375mm3
LVL Box Beam 17,944mm3
a) Which of the options would you select for the lintel?
Choose an item:
b) How does the sectional modulus factor into this decision?
Question 16
You are using LASERframe MGP10 timber for the frame, and will need to review the below document to answer the following questions:
(ID14x) LASERframe Product Guide
a) As per PART 1 QUESTION 1, confirm the region you are basing the construction in:
REGION: Region 2 Sydney - The house is located in a newer suburban development just outside of Penrith, New South Wales.
b) Which of the timber products is most appropriate for your buildings region?
c) When assembling the frame, what actions will damage the quality of the termite
resistance of the timber, and will require resealing?
d) What three (3) storage requirements must be observed to maintain quality and
straightness, according to the manufacturer information?
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-
-
Question 17
The frame is being assembled on site from timber members you will cut to size. You will need top and bottom plates, studs, lintels, noggings, and jambs.
What order should the components of the frame be assembled, before being stood?
1.
2.
3.
4.
5.
6.
Question 18
When assembling and standing the frame, there are certain processes that must be followed.
Identify the processes for the following questions:
a) How should studs be straightened?
b) How should external and internal wall junctions be affixed to each other?
c) How should noggings be located and staggered?
d) How should top plates be stiffened, should a concentration of load occur between
studs for a roof area of up to 10m2?
Please upload the following files to Canvas with your completed Assessment Workbook:
Completed Bracing Plan
Part Four Supporting Documents
(ID14p) AS 1684.2 - 2010 Excerpt
(ID14x) LASERframe Product Guide
2 Part Five Roof Frame and CladdingPart Five Supporting Documents
(ID14p) AS 1684.2 - 2010 Excerpt
(ID14y) Pryda Connectors Tie-down Design Guide
(ID14z) Pryda Roof Truss Installation Guide
(ID15a) Boral Roof Tile Technical Manual
(ID15g) Vivid Skylights Installation Guide
(ID15f) Tradical Hempcrete Codemark Certificate
(ID15c) Bradford Roof Sarking Installation Guide
The roofing of the building must be able to resist the effects of climate and weather, as well as wind loads. The interaction between the structural members of the roof frame and the cladding members require some investigation to ensure the roof is structurally sound.
Question 1
a) What type of roof is planned for the structure?
b) What roofing frame system is noted in the plans?
c) What is the spacing of the common trusses at centres?
Question 2
What timber is being used for the roofing frame?
Question 3
For an N3 wind category, all single-story frame to rafter tie down points are specific, and must be fixed in a manner that resists uplift forces.
Review the below document to answer the following questions:
(ID14p) AS 1684.2 - 2010 Excerpt
a) What is the uplift force for each of the labelled tie down points in the diagram above,
based on their uplift load width and 600mm spacings of tie downs?
As the Wind Uplift Load Width is between values in the table, use the higher value of 7500mm to provide a more conservative solution
b) The MPG10 that is being used for the roof trusses is seasoned and does not have
heart-in material. What is the joint group applicable to the frame?
The roof system is being fabricated by Pryda, and you will need to review the below guide to answer the following question:
(ID14y) Pryda Connectors Tie-down Design Guide
c) What is an appropriate tie down connection for the two tie down points to resist the
net uplift forces?
Question 4
Pryda have provided you with a certificate of compliance for the roofing system, as they have used a computer design system to ensure the trusses comply with AS 4440. Although the design is compliant with the required standards, you want to ensure that the method of design is compliant with NCC performance requirements.
a) Does the building design wall within the geometrical limits?
Choose an item:
b) Explain why or why not.
Question 5
You will need to lift the roof trusses onto the roof to install them. You have three ways of getting the trusses onto the roof:
Have the carpenter team manually lift them up and onto the roof
Use a crane and a sling to lift the trusses
Use a crane and a spreader bar to lift the trusses
The following document will need to be reviewed to answer the questions below:
(ID14z) Pryda Roof Truss Installation Guide
a) Which of the three (3) options would be the most appropriate for the installation
requirements?
Choose an item:
b) Explain why the other two options would not be appropriate.
c) According to the installation guide, which trusses should be installed first, assuming
the system is not a speed-truss system?
Question 6
The bracing and the battens of the roof trusses will be carried out with the Pryda Speedbrace system.
a) What are the fixing requirements for the bracing strap end at the apex?
b) What are the fixing requirements for the bracing strap at lap splices?
c) What are the fixing requirements for the bracing strap end at the top plate?
Question 7
What roof cladding system is noted in the plans?
Question 8
The owner has requested that the tiles be the Boral Capri roof tiles.
Review the below document to answer the following questions:
(ID15a) Boral Roof Tile Technical Manual
a) What is the batten spacing?
b) What are the tile fixing requirements at the edge of the roof?
c) What are the tile fixing requirements for the field of the roof?
d) What are the tile fixing requirements for ridge, hip and barge tiles?
Question 9
You will need to install roof penetrations such as pipes for ventilation.
According to the Boral Roof Tile Technical Manual, how would you accommodate a roof penetration such as this to maintain waterproofing?
Question 10
The client has requested that a skylight be installed over the main living area. The skylight will measure 650mm x 900mm. One of your team members suggests you cut a hole in one of the trusses to accommodate the skylight and fix it into the truss.
a) Why is this suggestion not an appropriate method of installing the skylight?
b) How should the skylight be fixed into the roof?
Question 11
Review the below document to answer the following question:
(ID15g) Vivid Skylights Installation Guide
How should the waterproofing of the roof be maintained?
Question 12
The client has requested that you look into a sustainable insulation option for the roof. They are interested in using a particular hemp-based material and have provided you with a Codemark Certificate of Conformity as justification for using the product.
Review the below document to answer the following questions:
(ID15f) Tradical Hempcrete Codemark Certificate
a) What Deemed-to-Satisfy provisions in the NCC does the product comply with?
b) What type of structure is the product certified for?
c) What are the NCC compliance requirements for thermal insulation?
d) Given the information in the Codemark certificate, is this product suitable for use as
insulation?
Choose an item:
e) Explain why or why not.
Question 13
Based on your review of the Hempcrete insulation, you have decided to use standard insulation batts, and are using a Bradford sarking product.
Review the below document to answer the following questions:
(ID15c) Bradford Roof Sarking Installation Guide
a) How should the reflective side be oriented?
b) What is the recommended overlap at joints?
c) What is the maximum sag?
d) What should be used to fasten the sarking until the battens are installed?
e) According to the NCC is an anti-ponding board required for the sarking?
Choose an item:
2 Part Six Wall CladdingPart Six Supporting Documents
(ID15b) Apollo Product Data Sheet
(ID14q) AS 4773.2 - 2015 Excerpt
(ID15d) Enviroseal Product Technical Statement
(ID15e) Thermoseal Product Technical Statement
The final part of the structure that you will look at is the wall cladding. You want to ensure that the cladding is going to be structurally sound and is going to work effectively to prevent the build-up of condensation.
Question 1
What external cladding has been specified in the plans?
Question 2
a) What are the strength requirements for solid or cored masonry units?
b) What exposure classification will be required for the masonry units?
c) What mortar mix is acceptable for the masonry?
Question 3
The client has chosen to use PHG Apollo Altitude bricks. You will need to review the following data sheet to answer the questions below:
(ID15b) Apollo Product Data Sheet
a) Do the bricks meet the NCC requirements for masonry units, in relation to
compressive strength and exposure classification?
Choose an item:
b) Explain why or why not.
Question 4
The masonry wall will require articulation joints to ensure the brickwork can handle the expansion and contraction of the masonry.
You have been provided with the following plan, outlining where the bricklayers intend to place articulation joints (indicated with a bold arrow, and the initials AJ)
a) Why do the articulation joints not comply with the NCC requirements?
Provide two (2) reasons.
-
-
b) What adjustments need to be made to bring this into line with the NCC
requirements?
Question 5
You have multiple packets of 50mm Stainless Steel Side Fix Brick Ties (light duty) on hand. You would prefer to use these brick ties to secure the masonry to the frame.
Review the below document to answer the following questions:
(ID14q) AS 4773.2 - 2015 Excerpt
a) Are these brick ties appropriate for the tie down requirements, given the stud
distance and the height of the wall?
Choose an item:
b) Explain why or why not.
Question 6
The plans for the wall state that the DPC height must be a minimum 150mm above the ground level.
a) Does the Damp Proof Course comply with the requirements NCC in regard to
location of the course and the distance above ground level?
Choose an item:
b) Explain why or why not.
Question 7
a) Do the weepholes comply with the requirements in the NCC in relation to location and
spacing?
Choose an item:
b) Explain why or why not.
Question 8
The following two Vapour Proof Membrane options have been proposed:
Option 1 - Bradford Enviroseal RW 9
Option 2 - Bradford ThermosealReview the below documents to answer the following questions:
(ID15d) Enviroseal Product Technical Statement
(ID15e) Thermoseal Product Technical Statement
a) As per PART 1 QUESTION 1, confirm the region you are basing the construction in:
REGION: Region 2 Sydney -The house is located in a newer suburban development just outside of Penrith, New South Wales
b) Which product is the most appropriate for the region of the building?
c) In addition to the vapour proof membrane, which of the following bulk insulation
products will be necessary to meet the minimum wall R rating?
Choose an item:
2 Part Seven Strucutral AnalysisNow that the structural analysis has been completed, you should make sure that what you have identified and planned is going to be accurate, by confirming it with a professional.
Question 1
Who would you confirm your analysis with?
Question 2
Based on the findings of your structural analysis, complete a draft summary of your assessment and findings that can be sent to the industry professional.
For each section:
Determine whether the item complies with the relevant NCC Volume 2 Performance Requirements
Provide an explanation and corresponding recommendation for any item that has been assessed as not satisfying the relevant NCC Volume 2 Performance Requirements
If an item is assessed as satisfying the relevant NCC Volume 2 Performance Requirements, enter N/A in Findings and Recommendations section
Structural Analysis Summary - Lot 70 Affordability St
Project Overview
Does the site works satisfy NCC Volume 2 Performance Requirements P2.1.1?
Choose an item:
Findings:
Recommendations:
Flooring / Slab
Does the slab satisfy NCC Volume 2 Performance Requirements P2.1.1 and P2.2.3?
Choose an item:
Findings:
Recommendations:
Frame
Does the timber satisfy NCC Volume 2 Performance Requirement P2.1.1?
Choose an item:
Findings:
Recommendations:
Bracing
Does the bracing satisfy NCC Volume 2 Performance Requirement P2.1.1?
Choose an item:
Findings:
Recommendations:
Roofing System
Does the roof frame satisfy NCC Volume 2 Performance Requirement P2.1.1?
Choose an item:
Does the roof cladding satisfy NCC Volume 2 Performance Requirements P2.1.1 and P2.2.2?
Choose an item:
Findings:
Recommendations:
Wall Cladding
Does the masonry satisfy NCC Volume 2 Performance Requirements P2.1.1, P2.2.2, and P2.2.3?
Choose an item:
Findings:
Recommendations:
Assessment Task Two Submission ChecklistBefore submitting your assessment for marking, please ensure that you have completed and uploaded the required documents using the checklist below.
Required Evidence Upload Check
Part 4 Q9 - Completed Bracing Plan 3 Project Task Scenario Overview
Assessment Task Three Supporting Documents
(ID15r) Lot 70 Affordability St Slab Plan REV A
HIA Construction are nearing the project commencement date and have engaged some external parties to assist with the structural analyses of the site. The footings of the site will need to be set out ASAP, and you need engineer approval of the slab to do so.
You requested an assessment of the slab from Jane Dark at Top Engineering Design, who has recommended the slab design be reworked entirely and replaced with a waffle pod slab. They have provided their recommendations for the foundation layout as per the email below, and attached a revised Slab Plan:
URGENT Engineer Assessment for Lot 70 Affordability Street
Jane Dark <j.dark@topengineeringdesign.com.au>
To: <participant@HIAconstruction.com.au> Thursday 2:39 PM
To the HIA Construction Project Manager,
We have completed the Engineer Assessment of the Lot 70 Affordability Street Slab Plan please find attached the revision document.
Some areas of concern were identified in the geotechnical report and will require additional structural support. The updated information with the sketch is as follows:
Bored piers (BP1) to be installed to underside of beams, centrally located at grids A-C/2.2-4
BP1 design to be 600 diameter x 2.0m deep with 6no. x N12 verticals and R6 ties @ 300mm ctrs, 75mm cover to earth face
Additional thickness to beams immediately affected by BP1 installation, at Grids 2-4/A-D. Increase thickness to 600mm and add additional layer of 3-11TM trench mesh to thickened beams
Concrete strength to be 25MPa
Bored piers to be poured prior to slab/beam placement
Inspection of bored piers required prior to concrete placement
Please let me know if you require any further information.
Thanks,
Jane Dark
Top Engineering Design
You will need to mark up a copy of the Slab Plan REV A incorporating the recommendations provided by Jane. Based on the information provided regarding the Bored Piers (BPs), you will also need to sketch the Plan Section detailing concrete cover requirements, and Elevation Section detailing reinforcement requirements. Once this is complete, you will need to update suppliers regarding any changes and determine the RL for the piers to ensure the BPs are placed to the correct level.
Assessment QuestionsQuestion 1
Mark up a copy of the Slab Plan REV A as per the engineers requirements.
Please save your completed plan as (ID15r) Lot 70 Affordability St Slab Plan REV A (Completed).
Your completed Slab Plan must be uploaded to Canvas alongside your assessment workbook once complete.
Question 2
Sketch the Plan and Elevation Sections of the piers.
You can provide hand drawn or computer aided sketches for this part and can include this on the completed Slab Plan submitted for QUESTION 1 or in the space provided below. If you wish to submit your sketches as a separate image or pdf file, please save as CPCCBC4010 AT3 Q2 Sketches.
Your completed sketches must be submitted in the space provided above or uploaded to Canvas alongside your assessment workbook once complete.
Question 3
Determine the length (in metres) of additional reinforcement required to complete the added bored pier footings, and the new thickened beams.
Show the formula you used, all calculations, and where applicable, round your final answer to two (2) decimal places.N12 Bar
R6 Ties
Trench Mesh
Question 4
Determine the volume (in metres3) of additional concrete required to complete the added bored pier and thickened footings.
Show the formula you used, all calculations, and where applicable, round your final answer to two (2) decimal places.
Question 5
To ensure the BPs are placed to the correct level, you must determine the RL for the top of the piers.
a) What is the minimum and maximum RL for the top of the BP1?
Show all calculations, and where applicable, round your final answer to three (3) decimal places.
Minimum RL
Maximum RL
b) What should you do if the concrete subcontractor pours the BP1s too high?
c) What should you do if the concrete subcontractor pours the BP1s too low?
AT3 Submission Checklist
Before submitting your assessment for marking, please ensure that you have completed and uploaded the required documents using the checklist below.
Required Evidence Upload Check
Q1 - (ID15r) Lot 70 Affordability St Slab Plan REV A (Completed)
Q2 - CPCCBC4010 AT3 Q2 Sketches
Only if not provided with Assessment Workbook or Slab Plan upload as above
Project Task Scenario Overview 4
Now that you have planned the structure at Lot 70 Affordability St, confirmed your analysis, and set out the footing on site, the building work can commence.
As the lead Project Manager for HIA Construction, providing clear instruction and guidance to the teams will ensure that the building is constructed properly, and as such you will need to develop processes to ensure that all the requirements are met.
As each stage is completed, youll have to perform checks at the appropriate points to ensure that the structure is complying with codes and standards and will be able to perform structurally.
You have been provided with the following plans and specification documents for the build at Lot 70 Affordability Street:
(ID2x) V2 Lot 70 Affordability St Specifications
(ID4p) V2 Lot 70 Affordability St Elevation Sections Details
(ID4q) V2 Lot 70 Affordability St Ceiling Layout
(ID4s) V2 Lot 70 Affordability St Floor Plans
(ID4t) V2 Lot 70 Affordability St Roof Layout
(ID4u) V2 Lot 70 Affordability St Site Plan Contours
(ID4v) V2 Lot 70 Affordability St Site Plan
(ID4w) V2 Lot 70 Affordability St Slab Layout
(ID14r) Lot 70 Affordability St Cut and Fill Plan
(ID14s) Lot 70 Affordability St Elevations (Truss)
(ID14t) Lot 70 Affordability St Truss Plan
You will also need to refer to the current NCC Volume Two while completing this Assessment Task. This has been provided to you as a supporting document:
(ID2z) NCC 2019 Volume Two Amendment 1
Collectively, all twelve (12) of these documents will need to be reviewed to complete this Assessment Task. Any additional supporting documents that are required for a specific question will be referenced within that Part of the Assessment Task as needed.
You will also need to assess a collection of images contained within the below document throughout this assessment task, which will be referred to as the Inspection Photos:
(ID15h) Inspection Photos
This document contains four sections that correspond to the four parts within this Project Task.
4 Part One Footings And Flooring
CASE STUDY
You have a team of subcontractors on site, ready to begin constructing the slab. As they are not your usual team, you are on site to supervise the work and ensure that the flooring is installed correctly. You have also collected some photos for review and compiled them in the below document:
(ID15h) Inspection Photos
The subcontractors have started laying out the vapour proof membrane across the site, making sure that the sheets overlap by 200mm. One of the team members is taping the overlapping sheets together with some polyethylene tape at regular spacings.The team is laying the membrane out far enough that it will extend past the edge of the slab far enough to be rolled up against the slab surface when the site is backfilled.
The team is now setting up the formwork. Each of the external formwork pieces has been set up in line with the stringline from the profiles you set out for the building dimensions. The edge formwork been installed to provide a 150mm stepdown on the edge beams, set back 150mm from the edge of the slab to provide a slab rebate at the external beam.The subcontractor team leader is checking that the formwork is level and plumb by squatting at each end and running his eye along the formwork.Another slab rebate has been installed in the formwork to provide a lower finished level for the garage slab.The formwork is staked and supported every metre and has been treated with a chemical to stop the concrete from adhering to it.
The void forms are being placed in the slab 300mm in from the external edge to form the edge beam, and at 1090mm spacings maximum with 110mm gaps between the void forms to form the ribs of the slab.
At the edge beams, 3 steel reinforcing bars are being laid down. The concreting team has been putting bar chairs down to raise the reinforcing off the vapour barrier. A couple of the bars were dropped in at an angle, and jabbed into the vapour barrier, but the team inspected the barrier and decided it was only minor damage with a very small hole and would be fine as is.
Steel reinforcing is laid out, raised up from the void forms on bar chairs.
Service penetrations have been installed in preparation for the concrete pour
As the concrete is being poured, the subcontractors are using concrete vibrators to compact the poured concrete. As they pour each stage, they level out the concrete with a screed board.
The slab has had time to dry, and the subcontractors are using a float to ensure a smooth finish to the concrete slab.After curing, you go on site to do a check of the slab, and make sure it is compliant, and follows the project documentation requirements.
You are now required to complete a compliance checklist noting whether the slab was installed correctly, based on what you observed, and the Inspection Photos.
Complete the following checklist noting the compliance of the slab installation with the project documentation, and recording any non-compliances in the comments column.
SLAB INSTALLATION COMPLIANCE CHECKLIST
Item Compliant? Comments
(If Non-Compliant)
Yes No 1.1 Vapour barriers have been installed underneath slabs
1.2 Vapour barriers must lap not less than 200mm at joints
1.3 Vapour barriers are of appropriate strength as per the plans
1.4 Vapour barrier must entirely underlay the slab and extend under edge beams to finish at ground level.
1.5 Vapour barriers must be sealed with a close fitting sleeve around service penetrations, and must be fully sealed where punctured with additional polyethylene film and tape
1.6 Concrete formwork must be straight and level
1.7 Stepdowns and rebates must be placed around the slab edges as required by plans and specifications
1.8 Edge rebates must not be less than 20mm
1.9 Void spacing must be arranged as per the plans and specifications
1.10 Edge and rib beam reinforcement must be installed as per the plans and specifications
1.11 Appropriate mesh reinforcement must be installed as per plans and specifications
1.12 Reinforcement must be lapped correctly at edges of reinforcing sheets as per AS 2870
1.13 Bar chairs are used to raise reinforcement to the appropriate height
1.14 Poured concrete must be vibrated to remove air bubbles
1.15 A screed board or similar tool must be used to level poured concrete
1.16 Concrete must have an appropriate surface finish, using trowels, floats or brushes
1.17 Finished slab must not show overpour or blow-out
1.18 Finished slab must not have exposed reinforcing
1.19 Finished slab must not have signs of honeycombing or cracking
1.20 Vapour barrier must be turned up against the stab and backfilled as required by NCC 3.2.2.3
4 Part Two Wall FramesPart Two Supporting Documents
(ID14p) AS 1684.2 - 2010 Excerpt
(ID15i) Framing Compliance Checklist Template
IMPLEMENT THE DESIGN
The next construction step will be the erection of the wall frames.
The engineer has reviewed your analysis of the structural requirements and has made some adjustments to the bracing of the building, adding some extra strap bracing to ensure that this will meet the requirements of AS 1684.2.
So that you can accurately guide the erection of the frame, you need to provide the team with a clear outline of the compliance requirements. As such, you decide to prepare a compliance checklist that the team can use while erecting the frame, and you can later use to check that the finished frame complies with requirements.
You have been provided with a generic framing checklist and must add the design specifications.
To do this, you will need to use the plans and specifications for Lot 70 Affordability St, the current NCC Volume 2, and details from the analysis you performed in Assessment Task 2, as well as the following documents:
(ID14p) AS 1684.2 - 2010 Excerpt
(ID15i) Framing Compliance Checklist Template
Question 1
Complete the design specification column within the Framing Compliance Checklist Template, including the appropriate specifications for the project at Lot 70 Affordability St.
Some design specifications have been completed for you.Save the document as (ID15i A) Framing Compliance Checklist (Design Specifications) once complete.
You will use this checklist again in PART 2 QUESTION 6 when checking the compliance of the finished frame. Please note both versions of this checklist are required to be uploaded, so ensure you save a copy before completing the full checklist.
Your Framing Compliance Checklist with the design specification column completed must be uploaded to Canvas alongside your assessment workbook once complete.
PROCESSES
As you are cutting the timber to size and assembling the frame on site, you have placed an order with the timber supplier and instructed them on how the timber must be delivered.You have requested that the timber be delivered wrapped in plastic covering and is to be unloaded onto the finished garage slab.
The timber supplier has arrived and stacked the timber on bearers 100mm off the ground, in the designated area. However, the timber supplier did not provide plastic wrapping for the members.
As you are checking the timber delivery, you find that some of the pieces are warped and bowed.
Question 2
a) What issues are present that could affect the quality of the frame?
b) What will you do to manage these issues?
Question 3
When deciding on the order to construct and stand the frames, you want to consider the practicality of the process. You know the following:
It is more practical to construct two walls that have perpendicular junctions and stand them together so that they can support each other
It is more practical to start at one end of the house, and work forwards room-by-room
It is practical to minimise the distance that you will need to carry timber framing members and should avoid carrying them through already erected frames.
When planning the construction of the rooms, The Ensuite, Walk in Robe, and Water Closet will be considered separate rooms. The Family, Dining, and Kitchen will be considered one room.
Your timber has been laid down on the garage slab.
Using the table below, list the order that you will construct each room of the house,
from 1 11.
Room Construction Order
Bath
Bed 2
Bed 3
Ensuite
Entry
Family / Dining / Kitchen
Formal Lounge
Laundry
Master Bed
Walk In Robe
Water Closet
Question 4
You have erected the external walls and have begun erecting and fixing the internal walls. As you stand and fix them, you notice that a few of the studs are slightly bowed. You will need to cripple them and straighten them, or you will be unable to install the plasterboard wall linings.
a) How deep is the maximum you can cut into the stud to straighten it?
b) Once you have inserted a wedge into the saw cut to straighten the stud, what must be
done to strengthen it?
Question 5
The electrician is on site and wants to install some wiring through the internal wall studs. They need to install electrical wiring, telephone cabling, and network cabling. As each cable is about 12mm diameter, the electrician is preparing to drill a 30mm hole into the bottom of the studs and pass all three cables through.
a) What are the two (2) issues with this?
-
-
b) How could the services be installed to comply with the requirements of AS1684.2?
CHECK THE FRAME
The framing is now complete, and you are ready to check it for compliance with standards and codes.
Review the Inspection Photos to complete the question below.
Question 6
Complete the Framing Compliance Checklist Template noting whether the frame is compliant with the design specifications and detail any non-compliance issues that are present.
Use the copy you developed for PART 2 QUESTION 1 (ID15i A) and complete the remaining columns in the checklist. Make sure you keep ID15i A.
Save the document as (ID15i B) Framing Compliance Checklist (Full Compliance Review) once complete.
Your completed Framing Compliance Checklist must be uploaded to Canvas alongside your assessment workbook once complete.
Please upload the following files to Canvas with your completed Assessment Workbook:
(ID15i A) Framing Compliance Checklist (Design Specifications)
(ID15i B) Framing Compliance Checklist (Full Compliance Review)
4 Part Three Roofing SystemPart Three Supporting Documents
(ID14o) AS 2870 - 2011 Excerpt
(ID14z) Pryda Roof Truss Installation Guide
(ID15g) Vivid Skylights Installation Guide
(ID15j) Roofing Compliance ChecklistTemplate
IMPLEMENT THE DESIGN
Supply issues have led to a shortage in roof sarking material. The owner is keen to move ahead with the build and has decided that they would like the roof installed without sarking material, as they believe it is not strictly necessary.
On discussion with the engineer, the owner decides that this would be the best course of action
Review the current NCC Volume 2 requirements for sarking.
Question 1
a) Is the decision to install the roof without sarking compliant with NCC guidelines?
Choose an item:
b) Explain why or why not.
Question 2
As you did with the wall frame system, you want to ensure that the roofing system is installed properly by preparing a checklist for the team.
You have been provided with a generic roofing checklist and must add the design specifications.
To do this, you will need to use the plans and specifications for Lot 70 Affordability St, the current NCC Volume 2, and details from the analysis you performed in Assessment Task 2, along with the following documents:
(ID14z) Pryda Roof Truss Installation Guide
(ID14o) AS 2870 - 2011 Excerpt
(ID15J) Roofing Compliance Checklist Template
Complete the design specification column within the Roofing Compliance Checklist Template, including the appropriate specifications for the project at Lot 70 Affordability St.
Some design specifications have been completed for you.Save the document as (ID15J A) Roofing Compliance Checklist (Design Specifications) once complete.
You will use this checklist again in PART 3 QUESTION 6 when checking the compliance of the finished frame. Please note both versions of this checklist are required to be uploaded, so ensure you save a copy before completing the full checklist.
Your Framing Compliance Checklist with the design specification column completed must be uploaded to Canvas alongside your assessment workbook once complete.
PROCESSES
The time has come to lift the trusses into place. The crane is on site and you have sent the apprentice to go and collect the erection guide that was supplied with the trusses.
The apprentice returns with an uncomfortable look.
Theyve lost the page that explains the order of installation.
You dont have the time to get your hands on a new installation guide, as the crane is expensive, and only available today.
The Pryda Roof truss installation guide says that you should erect girder trusses first. You know that once a girder truss is positioned, you should install another truss that will keep it straight and level.Once the main trusses are in place, you will be able to begin installing the common trusses that run between them, and then the saddle trusses.
The main trusses have been labelled as per the plan below.
Question 3
Based on the diagram, list the order that you will erect the labelled trusses in.
Erection Order Truss
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
Question 4
Now that you have the main trusses installed, you are ready to install the common trusses.
The apprentice is preparing to head up with a tape measure and begin measuring the distances between each truss.
Review the below document to answer the following question:
(ID14z) Pryda Roof Truss Installation Guide
What is the best practice process for ensuring the trusses are in the correct place?
Question 5
The team is discussing the installation of the skylight. This design is new to them, so they are unsure how to best install the flashings to maintain a waterproof seal. One of the team members wants to screw the flashing plates down to the battens.
Review the below document to answer the following questions:
(ID15g) Vivid Skylights Installation Guide
a) Which order should the flashings be installed in?
b) What effect would screwing the plates to the battens have on the roofs waterproofing
ability?
CHECK THE ROOFING
The roofing is now complete, and you are ready to check it for compliance with standards and codes.
Review the Inspection Photos to answer the question below.
Question 6
Complete the Roofing Compliance Checklist Template noting whether the roof is compliant with the design specifications and detail any non-compliance issues that are present.
Use the copy you developed for PART 3 QUESTION 2 (ID15J A) and complete the remaining columns in the checklist. Make sure you keep ID15J A..Save the document as (ID15J B) Roofing Compliance Checklist (Full Compliance Review) once complete.
Your completed Framing Compliance Checklist must be uploaded to Canvas alongside your assessment workbook once complete.
Please upload the following files to Canvas with your completed Assessment Workbook:
(ID15J A) Roofing Compliance Checklist (Design Specifications)
(ID15J B) Roofing Compliance Checklist (Full Compliance Review)
Part Four Wall CladdingCASE STUDY
You have engaged another subcontracting team to construct the brick veneer, so you are supervising their work to ensure that it is performed according to plans. You have also taken some photos and compiled this in the (ID15h) Inspection Photos.
The team have begun installing the sarking and flashing for the walls, in preparation for the brickwork to be installed. The sarking is being lapped at 150mm and taped at the join.
Before laying the brickwork, the subcontracting team prepares the mortar. The mortar ratio is 1:1:6 which means 1 part cement, 1 part lime and 6 parts sand so for each bag of cement, they are adding the same amount of lime, and six times as much sand.
The team begins by laying the first course of bricks at the base of the wall, and then running the damp proof coursing along the top of the bricks. The damp proof course is running continuously along the brickwork, except where there is a gap due to an articulation joint.The bricklayers are creating weepholes immediately above the flashing every 1.4m, spaced to the same spacing as other perpendicular joints.
As the bricklayers are laying new courses, they move the string line up to maintain a plumb and straight faade. They are maintaining a 30mm gap between the supporting frame and the masonry veneer.The bed joints are all 10mm, and the perpendicular joints are ranging between 10-15mm. Wall ties are being installed every 450mm vertically and horizontally and attached to the wall frame. At the top of the wall, the team has doubled the number of ties, with a tie located on both sides of the stud.
Articulation joints are being constructed with wall ties on both sides within 300mm of the joint
The bricklayers are creating articulation joints at 6m centres across all walls, and within1.2m of any opening.
Where windows are installed, the team are installing flashings at the bottom and tops of windows, with the flashing extending 100mm beyond each side of the opening. They are also providing weepholes above the windows and doors. The windows and doors have galvanised steel lintels installed across each opening, with a bearing length of 150mm at each end. One of the lintels is too long, and so the bricklaying team decides to quickly cut it to size. The lintel was about 75mm too long, so they have quickly cut off the excess steel so they can get the lintel installed as quickly as possible.
The bricklayers have finished the wall and ensured that the frame is anchored correctly with a double row of brick ties at the top of the wall, but the roof is not directly connected to the masonry wall so no tie downs in the brickwork are required.
You are now required to complete a compliance checklist noting whether the brick veneer was installed correctly, based on what you observed, and the Inspection Photos.
Complete the following checklist noting the compliance of the brick veneer cladding installation with relevant codes and standards and industry practice, and recording any non-compliances in the comments column.
SLAB INSTALLATION COMPLIANCE CHECKLIST
Item Compliant? Comments
(If Non-Compliant)
Yes No 1.1 Damp Proof coursing is installed no more than once course above the slab
1.2 Damp proof course must be installed in a continuous fashion around the bottom perimeter of walls
1.3 Wall sarking is to be installed with reflective side facing inwards
1.4 Wall sarking is to be joined with 150mm overlay, and sealed with moisture proof tape
1.5 Courses of bricks must be laid straight and level
1.6 Brick veneer must maintain a minimum 25mm gap between wall and frame
1.7 Perp beds and bed joints must have a nominal thickness of 10mm
1.8 Mortar must be mixed as per NCC requirements (1:1:6 ratio for cement:lime:sand)
1.9 Weepholes to be provided at maximum 1200mm centres, and located immediately above flashing/damp proof course
1.10 Wall ties must be fixed at:
max 450mm centres horizontally
max 400mm centres vertically
300mm to all sides of openings as well as at Articulation Joints
1.11 Wall ties must be doubled at top of wall and internal junctions as per AS 4773.2
SLAB INSTALLATION COMPLIANCE CHECKLIST
Item Compliant? Comments
(If Non-Compliant)
Yes No 1.12 Articulation joints must be installed at locations as per NCC requirements
1.13 Articulation joints must be continuous from DPC to eaves
1.14 Articulation joints must be 10mm wide and free of any mortar residue
1.15 Windows must have flashing at sills and heads
1.16 Flashing at windows and doors must extend not less than 150mm beyond the reveals on each side of the opening
1.17 Windows and doors must have weepholes located above head flashing
1.18 Openings in the veneer must be spanned by steel lintels
1.19 Steel lintels must have a minimum bearing length at each end of 100mm for clear spans not more than 1m, 150mm for clear spans more than 1m
1.20 Lintels with a corrosion protective coating that is modified (i.e. by cutting, welding, or where damaged), must have the coating restored to an equivalent level
1.21 Roof components must not be attached to brick veneer frame
AT4 Submission ChecklistBefore submitting your assessment for marking, please ensure that you have completed and uploaded the required documents using the checklist below.
Required Evidence Upload Check
Part 2 Q1 - (ID15i A) Framing Compliance Checklist (Design Specifications) Part 2 Q6 - (ID15i B) Framing Compliance Checklist (Full Compliance Review) Part 3 Q2 - (ID15J A) Roofing Compliance Checklist (Design Specifications) Part 3 Q6 - (ID15J B) Roofing Compliance Checklist (Full Compliance Review)
