1. Michael Martin - Cert IV - Codes and Standards 2012
CPCCBC4001A Apply building codes and standards to the construction process for low rise building projects  
Lesson Three – Scenario Exercises, and Understanding Performance Requirements
Michael Martin - Cert IV - Codes and Standards 2012

2. Michael Martin - Cert IV - Codes and Standards 2012
Todays Lesson
Handout (next section P36 to n44 )
Review Scenario 1
Understanding Performance (begin)
Scenario 2 in groups
Michael Martin - Cert IV - Codes and Standards 2012

3. Michael Martin - Cert IV - Codes and Standards 2012
Scenario One
Michael Martin - Cert IV - Codes and Standards 2012

4. Michael Martin - Cert IV - Codes and Standards 2012
Scenario One
What's the problem ?
Site drainage problem
Causing water ponding in sub floor
Decay of stumps
Decay of timber joists and bearers
What class of building ?
Class 1a, residential house
Michael Martin - Cert IV - Codes and Standards 2012

5. Michael Martin - Cert IV - Codes and Standards 2012
BCA Specific
BCA Surface water must be diverted away from class 1 buildings as follows:
(c) The ground beneath suspended floors must be graded so that the area beneath the building is above the adjacent external finished ground level and surface water is prevented from ponding under the building (see figure )
Continues next slide
Michael Martin - Cert IV - Codes and Standards 2012

6. Michael Martin - Cert IV - Codes and Standards 2012
BCA Specific (2012 page 118)
Michael Martin - Cert IV - Codes and Standards 2012

7. BCA Specific (BCA 2012, page 118)
Also consider
Subsoil drainage
Where a subsoil drainage system is installed to divert subsurface water away from the area beneath a building, the subsoil drain must……
Anything else ??
Michael Martin - Cert IV - Codes and Standards 2012

8. Review What BCA Applies to
The application of the BCA is
determined by each State or Territory
Generally – the BCA applies to the construction of all new buildings
The BCA can also apply to additions and alterations to existing buildings
The BCA, or parts of it, can also apply to proposals to change the use of a building
Michael Martin - Cert IV - Codes and Standards 2012

9. Understanding Performance Requirements
from P 36 text
Michael Martin - Cert IV - Codes and Standards 2012

10. Understanding Performance Requirements – from P 36 text
Requirements are mandatory and Deemed-to-Satisfy Provisions are optional
However complying with the BCA without using Deemed-to-Satisfy Provisions – Means: developing Alternative Solutions
We’ve broken this into three sections
Prescription ‘v’ performance
Developing Alternate Solutions
Assessment of Alternate Solutions
Michael Martin - Cert IV - Codes and Standards 2012

11. Prescription ‘v’ Performance
The old system (Prescription)
When something must be done
What must be done
How it must be done
A minimum necessary standard P 37
In this system, alternative methods were sought through the courts
Example of prescriptive clause on P 38
Now look at the alternate clause P 38 written as a performance requirement (the current BCA)
Michael Martin - Cert IV - Codes and Standards 2012

12. Performance & Alternate Solutions
No longer need to apply to Tribunals or Courts
Most Certifying Authorities can now approve Alternative Solutions
Performance regulations reduce the need to;
lodge objections to regulations
apply for a modification or variation of a code
appeal decisions of Certifying Authorities
What do you see as the benefit of doing things the way you like ? P 39
Michael Martin - Cert IV - Codes and Standards 2012

13. BCA language & Performance
we need to understand what’s actually required in order to comply P 39
must understand the wording and the language used to express Performance Requirement.
There are two ways
QUALITATIVE terms or
QUANTITATIVE terms
Michael Martin - Cert IV - Codes and Standards 2012

14. Michael Martin - Cert IV - Codes and Standards 2012
Qualitative
This means that requirements are described using words
The wording does not propose any particular means of compliance
The designer has flexibility to use any acceptable means
Michael Martin - Cert IV - Codes and Standards 2012

15. Michael Martin - Cert IV - Codes and Standards 2012
Quantitative
This means that requirements are described using numbers
That provide an absolute measure of performance
This Performance Requirement specifies the intensity of rainfall that must be accommodated in the design of a surface water system
Michael Martin - Cert IV - Codes and Standards 2012

16. Michael Martin - Cert IV - Codes and Standards 2012
Two key phrases
To the degree necessary……
Appropriate to …….
Look over page 40 to 42
Michael Martin - Cert IV - Codes and Standards 2012

17. Developing Alternatives
It’s often preferable to design something different to DTS
to develop an Alternative Solution. P 42
Full compliance with the DTS is usually the simplest way to design a building
following the DTS pathway may not be the most cost-efficient or practical
It may also not be possible to do so if a client wants something out of the ordinary.
Part A0.5 provides two pathways to demonstrate compliance of Alternative Solutions
Michael Martin - Cert IV - Codes and Standards 2012

18. Michael Martin - Cert IV - Codes and Standards 2012
Part A0.5 (BCA 2012, Vol 1, P 19)
1. Developing an Alternative Solution to meet the Performance Requirements 2. Developing an Alternative Solution to at least equate to DTS Provisions We’ll carry on with this next week P 43
Michael Martin - Cert IV - Codes and Standards 2012

19. Michael Martin - Cert IV - Codes and Standards 2012
Scenario Two
Michael Martin - Cert IV - Codes and Standards 2012

20. Michael Martin - Cert IV - Codes and Standards 2012
BCA Standard Specific
3.1.3 (BCA 2012, from P 123)
Michael Martin - Cert IV - Codes and Standards 2012

21. Michael Martin - Cert IV - Codes and Standards 2012
Other AS Standards
AS – 2000 Termite Management – New Building Work
AS – 2000 Termite Management – In and around existing buildings and structures – Guidelines
AS – 2000 Termite Management – Assessment criteria for termite management systems
AS – 1998 Inspections of Buildings – Timber pest inspections
Michael Martin - Cert IV - Codes and Standards 2012

22. Michael Martin - Cert IV - Codes and Standards 2012
Michael Martin - Cert IV - Codes and Standards 2012

23. Michael Martin - Cert IV - Codes and Standards 2012
Reference list
ABCB National Construction Code Awareness Resource Kit
http: (for some images)
Michael Martin - Cert IV - Codes and Standards 2012