C - Detailed Design & Documentation

Question 1

What are the 4 D’s in detailing?

Answer 1

Deflection - keep water away
Drainage - provide paths
Drying - ventilation/diffusion
Durability - appropriate selection

Question 2

What are 6 key aspects of the Detailed Design phase?

Answer 2

• appropriate materials & systems
• drawings & communication
• coordinated specification & schedules
• quality, cost & time
• design change communication
• ethical practices

Question 3

What are the 3 C’s?

Or what are the 4 C’s

Answer 3

Completeness
Clarity
Cross Referencing

Clear
Concise
Correct
Complete

Question 4

What is the key difference between specifications and drawings?

Answer 4

Drawings describe quantity, position, assembly & extent

Specification describes quality & process

Question 5

Explain the Hierarchy of Legislation

Answer 5

Building Act forms
Building Regulations
of which one Contains the Building Code.

Under this legislation are Acceptable solutions, Verification methods & alternative solutions.
AS & VMs include cited standards.

Question 6

What are the three parts of each section of the building code?

Answer 6

Objectives (social)
Functional Requirements
Performance Criteria

Question 7

How might you demonstrate compliance with the building code?

Answer 7

Acceptable Solutions
Verifications Methods
Cited Standards
Determinations
Product Certification
Alternative Solutions

Question 8

How might you demonstrate compliance using an alternative solution?

Answer 8

Comparison to an acceptable solution
Comparison to standard, technical, test or research documents
In service history

Question 9

What is the purpose of the building regulatory system?

Answer 9

Set out a framework to promote good quality decisions being made during the building process.

Question 10

Where do you find the building code?

Answer 10

Building Regulations 1992 Schedule 1

Question 11

What is the purpose of the building code?

Answer 11

To set minimum performance standards buildings must meet.

How a building must perform = perfomance based code.

Question 12

What is RBW

Answer 12

Restricted Building Work relates to residential construction and design, for certain houses and small to medium apartment buildings.

Question 13

Who can sign a RBW memorandum?

Answer 13

A Natural Person

Question 14

What are the 4 types of producer statements?

Answer 14

PS1 - design
PS2 - peer review
PS3 - construction
PS4 - construction review

Question 15

The Building Amendment Act 2013 introduced two main new parameters, what are they?

Answer 15

1. Construction work over 30K requires a written construction contract.
2. New 12 months defects repair notification/liability period

Question 16

What are the sections of a trade specification under masterspec?

Answer 16

General
Products
Execution
Selections

Question 17

What are warranties & guarantees?

Answer 17

Warranty - an undertaking by one party to another. Warrant the performance of the relevant part of the works and include to undertake remedy.

Guarantee - an undertaking by a third party to act in the event one party does not fulfil their obligations under the guarantee.

Question 18

What is the role of the BCA vs TA under the Building Act?

Answer 18

BCA - charge with a duty to assess and issue building consents (but not waivers or modifications), assess building work for which it has granted a consent, issue CCC & compliance schedules

TA - performs the function of a BCA if also in this role. Also issue PIMS, grant exemptions, issue CoAs, administer annual BWOF

Question 19

What must you consider in risk matrix calculations?

Answer 19

Wind Zone
Number of Storeys
Eaves Width
Roof/wall intersection
Envelope complexity
Deck design

Question 20

if you are the agent for a BC or RC what must you do?

Answer 20

Gain written confirmation from the client of your status as agent.

Question 21

What should you consider when selecting warranty periods?

Answer 21

If the work is critical or risky seek to increase.
If if is a large project and large quantities do.
Note these cost money to produce and enforce.
If a short or minor warranty, especially for residential, remember the CGA and implied warranties. It may not be worth seeking.

Consider BC durability period although note installation often less.
Note Arch 10yr liability - do you want this to cover also?

Question 22

What is the 5th D?

Answer 22

Diffusions - movement of water vapour

Question 23

What are the 4 parts of the spec?

Answer 23

P&G

Trade Sections:
General
Products
Execution
Selections

Question 24

Explain vapour diffusion?

Answer 24

A typical example of vapor diffusion happens when a material — for example, gypsum drywall installed on a wall — separates two zones. If the air on one side of the drywall is very damp, and the air on the other side of the drywall is very dry, moisture in the air will diffuse through the drywall.

If the drywall is screwed to a stud wall that separates a damp area from a dry area, the drywall absorbs moisture on its damp side. Moisture evaporates from its dry side. The moisture has moved through the drywall by diffusion.

Question 25

Benefit of vapour diffusion?

Answer 25

Vapor diffusion is typically thought of
as a negative phenomenon—one that needs
to be completely stopped. In reality, vapor
diffusion is a positive mechanism that can
be used to a designer’s benefit, and is a very
important drying mechanism for an enclosure
assembly. In fact, vapor diffusion is the only
process through which the interiors of most
in-service wall assemblies can dry