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Part A5 Documentation of Design and Construction

Introduction to this Part

This Part explains the evidence needed to show that the NCC requirements are met and the solution is "fit for purpose". It covers the use of materials, products, forms of construction and designs. It details separate requirements for the BCA and PCA.

Examples of evidence to be prepared and retained include certificates, reports, calculations and any other documents or information showing compliance with the NCC requirements.

A5.0 Suitability

(1)

A building and Open link in same pageplumbing or Open link in same pagedrainage installation must be constructed using materials, products, Open link in same pageplumbing Open link in same pageproducts, forms of construction and designs fit for their intended purpose to achieve the relevant requirements of the NCC.

(2)

For the purposes of Open link in same page(1), a material, product, Open link in same pageplumbing Open link in same pageproduct, form of construction or design is fit for purpose if it is—

(a)

supported by evidence of suitability in accordance with—

(b)

constructed or installed in an appropriate manner.

A5.1 Evidence of suitability—Volumes One, Two and Three

(1)

The form of evidence used must be appropriate to the use of the material, product, Open link in same pageplumbing Open link in same pageproduct, form of construction or design to which it relates.

(2)

Any copy of documentary evidence submitted must be a complete copy of the original certificate, report or document.

A5.2 Evidence of suitability—Volumes One and Two

Application 1:

Open link in same pageA5.2 is only applicable to the BCA.

(1)

Subject to Open link in same pageA5.4, Open link in same pageA5.5 and Open link in same pageA5.6, evidence to support that the use of a material, product, form of construction or design meets a Open link in same pagePerformance Requirement or a Open link in same pageDeemed-to-Satisfy Provision may be in the form of any one, or any combination of the following:

(a)

A current CodeMark Australia or CodeMark Open link in same pageCertificate of Conformity.

(c)

A current certificate, other than a certificate described in Open link in same page(a) and Open link in same page(b), issued by a Open link in same pagecertification body stating that the properties and performance of a material, product, form of construction or design fulfil specific requirements of the BCA.

(d)

A report issued by an Open link in same pageAccredited Testing Laboratory that—

(i)

demonstrates that a material, product or form of construction fulfils specific requirements of the BCA; and

(ii)

sets out the tests the material, product or form of construction has been subjected to and the results of those tests and any other relevant information that has been relied upon to demonstrate it fulfils specific requirements of the BCA.

(e)

A certificate or report from a Open link in same pageprofessional engineer or other Open link in same pageappropriately qualified person that—

(i)

certifies that a material, product, form of construction or design fulfils specific requirements of the BCA; and

(ii)

sets out the basis on which it is given and the extent to which relevant standards, specifications, rules, codes of practice or other publications have been relied upon to demonstrate it fulfils specific requirements of the BCA.

(f)

Another form of documentary evidence, such as but not limited to a Open link in same pageProduct Technical Statement, that—

(i)

demonstrates that a material, product, form of construction or design fulfils specific requirements of the BCA; and

(ii)

sets out the basis on which it is given and the extent to which relevant standards, specifications, rules, codes of practice or other publications have been relied upon to demonstrate it fulfils specific requirements of the BCA.

(2)

Evidence to support that a calculation method complies with an ABCB protocol may be in the form of any one, or any combination of the following:

(a)

A certificate from a Open link in same pageprofessional engineer or other Open link in same pageappropriately qualified person that—

(i)

certifies that the calculation method complies with a relevant ABCB protocol; and

(ii)

sets out the basis on which it is given and the extent to which relevant standards, specifications, rules, codes of practice and other publications have been relied upon.

(b)

Another form of documentary evidence that correctly describes how the calculation method complies with a relevant ABCB protocol.

A5.3 Evidence of suitability—Volume Three

Application 1:

Open link in same pageA5.3 is only applicable to the PCA.

(1)

Any Open link in same pageproduct that is intended for use in contact with Open link in same pagedrinking water must comply with the relevant requirements of AS/NZS 4020 in the form of either—

Open link in same pageTas A5.3(1)(a)

(a)

a test report provided by a Open link in same pagecertification body or Open link in same pageAccredited Testing Laboratory, in accordance with AS/NZS 4020; or

(b)

a Open link in same pageWaterMark Licence issued in accordance with Open link in same page(2), if it includes compliance with AS/NZS 4020.

Open link in same page Tas A5.3(1)(c)

(2)

A Open link in same pageproduct of a type listed on the Open link in same pageWaterMark Schedule of Products is deemed to be fit for its intended purpose if it has a Open link in same pageWaterMark Licence issued in accordance with the WaterMark Scheme Rules.

(3)

A Open link in same pageproduct of a type listed on the Open link in same pageWaterMark Schedule of Excluded Products requires evidence of suitability in the form of—

(a)

a current certificate issued by a Open link in same pagecertification body stating that the properties and performance of a Open link in same pageproduct can meet the requirements of the PCA; or

Open link in same page Tas A5.3(3)(b)

(b)

a report issued by an Open link in same pageAccredited Testing Laboratory that—

(i)

demonstrates that the Open link in same pageproduct complies with the relevant requirements of the PCA; and

(ii)

sets out the tests the Open link in same pageproduct has been submitted to and the results of those tests and any other relevant information that has been relied upon to demonstrate suitability for use in a Open link in same pageplumbing or Open link in same pagedrainage installation.

(4)

Any Open link in same pageproduct that is not covered by Open link in same page(2) or Open link in same page(3) must be subjected to a risk assessment in accordance with the WaterMark Scheme Rules.

Open link in same page Tas A5.3(401)

(5)

Evidence to support that a design or system meets the relevant PCA Open link in same pagePerformance Requirements must be in the form of any one or any combination of the following:

(a)

The design or system complies with a Open link in same pageDeemed-to-Satisfy Provision.

(b)

The design or system is a Open link in same pagePerformance Solution from a Open link in same pageprofessional engineer or a Open link in same pagerecognised expertthat—

(i)

certifies that the design or system complies with the relevant requirements of the PCA; and

(ii)

sets out the basis on which it is given and the extent to which relevant standards, specifications, rules, codes of practice or other publications have been relied upon.

Open link in same page Tas A5.3(5)(b)(iii)

(6)

Any other form of documentary evidence that—

(a)

demonstrates that a design or system complies with the relevant requirements of the PCA; and

(b)

sets out the basis on which it is given and the extent to which relevant standards, specifications, rules, codes of practice or other publications have been relied upon.

Open link in same page Tas A5.3(7) , Open link in same page(8) , Open link in same page (9) , Open link in same page(10)

A5.4 Fire-resistance of building elements

Where a Open link in same pageDeemed-to-Satisfy Provision requires a building element to have an FRL, it must be determined in accordance with Open link in same pageSchedule 5.

A5.6 Resistance to the incipient spread of fire

A ceiling is deemed to have a Open link in same pageresistance to the incipient spread of fire to the space above itself if—

(1)

it is identical with a prototype that has been submitted to the Open link in same pageStandard Fire Test and the Open link in same pageresistance to the incipient spread of fire achieved by the prototype is confirmed in a report from an Open link in same pageAccredited Testing Laboratory that—

(a)

describes the method and conditions of the test and form of construction of the tested prototype in full; and

(b)

certifies that the application of restraint to the prototype complies with the Open link in same pageStandard Fire Test; or

(2)

it differs in only a minor degree from a prototype tested under Open link in same page(1) and the Open link in same pageresistance to the incipient spread of fire attributed to the ceiling is confirmed in a report from an Open link in same pageAccredited Testing Laboratory that—

(a)

certifies that the ceiling is capable of achieving the Open link in same pageresistance to the incipient spread of fire despite the minor departures from the tested prototype; and

(b)

describes the materials, construction and conditions of restraint that are necessary to achieve the Open link in same pageresistance to the incipient spread of fire.

Open link in same page ACT Appendix

Explanatory information:

Open link in same pageA5.0 relates to the quality of work and materials needed to construct a building to meet NCC requirements.

This means that—

  • all people involved with construction must work skillfully in accordance with good trade practice; and
  • all materials must be of a quality to fulfil their function/s within the building.

Open link in same pageA5.0 only applies to matters normally covered by the NCC.

While Open link in same pageA5.0 outlines quality of work and material demands, sometimes additional conditions may be required by—

  • other Commonwealth, State or Territory legislation; and
  • contracts that include either specific quality requirements, or requirements for specific materials and the like.

Example

Permit authorities would ordinarily not apply Open link in same pageA5.0 to such matters as—

When determining which form of evidence will be used, it is important to consider the appropriateness of the evidence, as some forms of evidence may be more suitable to materials and products and others to designs and forms of construction. The requirement to consider appropriateness of the evidence is specified in Open link in same pageA5.1(1).

For further guidance, refer to the ABCB Handbook for Evidence of Suitability.

All copies of documents provided as evidence must be unabridged copies of the originals. No part can be left incomplete.

Open link in same pageA5.2 represents the minimum level of documentary evidence needed to show that a material, product, form of construction or design meets the relevant NCC requirements. The evidence can be required by:

If a building proponent does not produce exactly what is required, the evidence may be rejected.

It should be noted that design may refer to engineering design, architectural design as well as product and material design.

Open link in same pageA5.2(1)(f) allows for the use of alternative forms of documentary evidence to those included in Open link in same pageA5.2(1)(a) to Open link in same page(e), as long as they comply with certain specified conditions.

An example of this arises when an authority carries out an inspection of a building site. The inspection alone would not be acceptable as evidence. However, if the authority compiled a written report detailing findings and conclusions from the inspection, then it may comply with the requirements of Open link in same pageA5.2(1)(f).

A Open link in same pageProduct Technical Statement detailing the characteristics and merits of a particular product or system is also an example of another form of documentary evidence.

There is significant reliance by industry on the use of calculation methods, including software programs, for demonstrating compliance with the NCC. While there is no formal recognition of specific methods, Open link in same pageA5.2(2) allows suitable evidence to be submitted to demonstrate that a calculation method (including a software program) complies with a relevant ABCB protocol that establishes the characteristics of a suitable calculation method.

Open link in same pageA5.3(1) requires any Open link in same pageproduct intended for use in contact with Open link in same pagedrinking water to comply with AS/NZS 4020. Compliance is achieved by passing the relevant tests set out in the Standard. Evidence of compliance must then be provided in accordance with Open link in same pageA5.3(1), under which there are two options. The first, at Open link in same pageA5.3(1)(a), recognises test reports and certificates that cover compliance with AS/NZS 4020 only. The second, at Open link in same pageA5.3(1)(b), recognises Open link in same pageWaterMark Licences where compliance with AS/NZS 4020 is a requirement of the relevant Open link in same pageproduct Standard or WaterMark Technical Specification.

For Open link in same pageproducts that are of a type listed on the Open link in same pageWaterMark Schedule of Products, Open link in same pageA5.3(2) requires that these Open link in same pageproducts have a Open link in same pageWaterMark Licence. A Open link in same pageWaterMark Licence reflects that the Open link in same pageproduct has been certified and authorised in accordance with the WaterMark Scheme Rules.

For Open link in same pageproducts that are not subject to WaterMark certification (i.e. excluded Open link in same pageproducts), evidence that can be used to support that the Open link in same pageproduct is fit for its intended purpose is provided in Open link in same pageA5.3(3). This may include demonstrating compliance with a Open link in same pageproduct specification referenced in the Open link in same pageWaterMark Schedule of Excluded Products, where one is available.

Open link in same pageA5.3(4) provides that any product that is not listed on the Open link in same pageWaterMark Schedule of Products or the Open link in same pageWaterMark Schedule of Excluded Products must be subjected to a risk assessment in accordance with the WaterMark Scheme Rules. The risk assessment will determine whether the product in question requires certification and authorisation, or if it should be listed as an “excluded product”. This in turn will determine the form of evidence of suitability applicable to the Open link in same pageproduct.

What is WaterMark?

The Open link in same pageWaterMark Certification Scheme is a mandatory certification scheme for Open link in same pageplumbing and Open link in same pagedrainage Open link in same pageproducts to ensure that these Open link in same pageproducts are fit for purpose and appropriately authorised for use in a Open link in same pageplumbing or Open link in same pagedrainage system.

The PCA, through Open link in same pagePart A5, requires certain Open link in same pageplumbing and Open link in same pagedrainage Open link in same pageproducts to be certified and authorised for use in a Open link in same pageplumbing or Open link in same pagedrainage system. These Open link in same pageproducts are certified through the Open link in same pageWaterMark Certification Scheme and listed on the WaterMark Product Database.

The Open link in same pageWaterMark Certification Scheme is governed by the WaterMark Scheme Rules, which are available for download from the ABCB website at: www.abcb.gov.au. These rules set out the requirements for risk assessments, evaluation, certification, and the drafting of WaterMark Technical Specifications.

When a Open link in same pageproduct is listed on the Open link in same pageWaterMark Schedule of Products then, for it to be certified and authorised, the Open link in same pageproduct must—

Open link in same page Products that comply fully with the applicable requirements of the Open link in same pageWaterMark Certification Scheme are then eligible to be certified by a Open link in same pageWaterMark Conformity Assessment Body and listed on the WaterMark Product Database. Certified Open link in same pageproducts are identifiable by the WaterMark certification trade mark, shown below, that must be displayed on the Open link in same pageproduct upon granting of a Open link in same pageWaterMark Licence.


If under a Open link in same pageDeemed-to-Satisfy Provision a building element is Open link in same pagerequired to have an FRL, then Open link in same pageA5.2 may be used to provide evidence to show that the FRL has been determined in accordance with Open link in same pageSchedule 5.

In the case of a test report from an Open link in same pageAccredited Testing Laboratory, the report may be either—

  • the test report referred to in clause 2.16.2 of AS 1530.4 (also referred to as a full test report); or
  • the regulatory information report referred to in clause 2.16.3 of AS 1530.4 (also referred to as a short-form report).

In both cases the report must be an unabridged copy of the original report. A test certificate referred to in clause 2.16.4 of AS 1530.4 on its own is not suitable for showing compliance with the NCC.

If a proposal uses a Open link in same pageDeemed-to-Satisfy Provision that requires a building element to have Open link in same pagefire hazard properties, then Open link in same pageA5.2 may be used to provide evidence to support the proposal and show that the Open link in same pagefire hazard properties have been determined in accordance with Open link in same pageA5.5.

Refer to the guidance provided in the Guide to Volume One for further information on Open link in same pagefire hazard properties which includes—

The Open link in same pageDeemed-to-Satisfy Provisions of the BCA contain a number of provisions requiring a ceiling to have a Open link in same pageresistance to the incipient spread of fire to the space above itself. Open link in same pageA5.6 sets out the method of determining the incipient spread of fire. The method is based on the method of determining the FRL of a building element and use of the Open link in same pageStandard Fire Test.