Transcript Wet areas compliance - PowerPoint slides

DISCUSSION: WET AREAS
COMPLIANCE
ANTHONY LIVINGSTON
MANAGER, BUILDING STANDARDS & REGULATION
16 AUGUST 2016
Consumer, Building and Occupational Services
Department of Justice
Discussion: Wet Areas Compliance
Back to Basics: What is a wet
area?
Wet area means an area within a building
supplied with water from a water supply
system, which includes bathrooms, showers,
laundries and sanitary compartments and
excludes kitchens, bar areas, kitchenettes or
domestic food and beverage preparation areas.
Discussion: Wet Areas Compliance
What is the Legal Requirement?
The legal requirement is to comply with the
Performance Requirements of the National
Construction Code 2016.
Discussion: Wet Areas Compliance
Volume One Performance Requirements
FP1.6
Overflow from a bathroom, laundry facility or the like
must be prevented from penetrating to –
(a) another sole-occupancy unit used for
sleeping accommodation; and
(b) a public space,
in a storey below in the same building.
Discussion: Wet Areas Compliance
Volume One Performance Requirements
FP1.7
To protect the structure of the building and to
maintain the amenity of the occupants, water must
be prevented from penetrating –
(a) behind fittings and linings; and
(b) into concealed spaces,
of sanitary compartments, bathrooms, laundries and
the like.
Discussion: Wet Areas Compliance
Volume Two Performance Requirement
P2.4.1 Wet Areas
To protect the structure of the building and to
maintain the amenity of the occupants, water must
be prevented from penetrating –
(a) behind fittings and linings; or
(b) into concealed spaces,
of sanitary facilities, bathrooms, laundries and the
like.
Discussion: Wet Areas Compliance
Compliance Pathway Options
.
Discussion: Wet Areas Compliance
Deemed-to-Satisfy Pathway - Volume One
F1.7 Waterproofing of wet areas in buildings
(a) In a Class 2 and 3 building and a Class 4 part of a building, building
elements in wet areas must –
(i)
Be water resistant or waterproof in accordance with Table F1.7;
and
(ii) Comply with AS 3740.
(b) In a class 5, 6, 7, 8 or 9 building, building elements in the bathroom or
shower room, a slop hopper or sink compartment, a laundry or sanitary
compartment must –
(i)
Be water resistant or waterproof in accordance with Table F1.7;
and
(ii) Comply with AS 3740
as if they were in a Class 2 or 3 building or a Class 4 part of a building.
Discussion: Wet Areas Compliance
Deemed-to-Satisfy Pathway - Volume Two
3.8.1.2 Wet Areas
Building elements in wet areas within a
building must –
(a)be waterproof or water resistant in
accordance with Table 3.8.1.1; and
(b)comply with AS 3740.
Discussion: Wet Areas Compliance
Waterproof vs Water Resistant
NCC Definitions
Waterproof means the property of a material that
does not allow moisture to penetrate through it.
Water resistant means the property of a system or
material that restricts moisture movement and will
not degrade under conditions of moisture.
Discussion: Wet Areas Compliance
AS 3740 – Waterproofing of Domestic Wet Areas
2.4 MATERIALS
2.4.1 Waterproof
For the purposes of this Standard, the following materials used in waterproofing systems are
deemed to be waterproof:
(a)
(b)
(c)
(d)
Stainless steel.
Copper, material not less than 99.9% copper, complying with the requirements for
material designation 110 or 122 given in AS 1566.
Flexible waterproof sheet flooring material with waterproof joints of the sheeting.
Note: There is no need for a water stop at the general room doorway when using this
material.
Membranes meeting the requirements of AS/NZS 4858.
Discussion: Wet Areas Compliance
AS 3740 – Waterproofing of Domestic Wet Areas
1.4.24 Waterproof (WP)
The property of a material that does not allow moisture to penetrate through it
when tested in accordance with AS/NZS 4858.
1.4.25 Waterproofing system
A combination of elements that are required to achieve a waterproof barrier as
required by this Standard (eg., substrate, membrane, bond breakers, sealants
and finishes).
Note: A waterproofing system for a bathroom floor may include lining it with a
material in accordance with Clause 2.4.1, Item (a), (b) or (d) or by using a
waterproof flexible sheet flooring material in accordance with Clause 2.4.1(c).
Discussion: Wet Areas Compliance
AS 3740 – Waterproofing of Domestic Wet Areas
2.4 MATERIALS
2.4.3 Water-resistant surface materials
For the purposes of this Standard, the following surface materials are deemed to be
water resistant for the locations listed:
(a)
Walls:
(i)
Thermosetting laminated sheet manufactured in accordance with AS 2924.1.
(ii)
Predecorated fibre cement sheeting manufactured in accordance with AS
2908.2.
(iii) Tiles when used in conjunction with a substrate listed in Clause 2.4.2.
Note: Porous tiles can have discolouration caused by water absorption and migration.
(iv)
(v)
Water-resistant flexible sheet wall material with sealed joints (eg., sheet vinyl
or linoleum) when used in conjunction with a substrate listed in Clause 2.4.2.
Sanitary grade acrylic wall linings.
Discussion: Wet Areas Compliance
AS 3740 – Waterproofing of Domestic Wet Areas
(b) Floors (when used in conjunction with a substrate listed in Clause 2.4.2):
(i)
Tiles.
Note: Porous tiles can have discolouration caused by water
absorption and migration.
(ii) Water-resistant flexible sheet flooring material with sealed joints (eg.
sheet vinyl and linoleum.)
Discussion: Wet Areas Compliance
AS 3740 – Waterproofing of Domestic Wet Areas
2.3 MOVEMENT JOINTS
The waterproofing system shall accommodate the expected movement
at movement joints in the substrate.
2.6 SEALANTS
For the purposes of this Standard, all sealants shall be –
(a) waterproof;
(b) flexible;
(c) mould-resistant; and
(d) compatible with adjacent materials.
Discussion: Wet Areas Compliance
AS 3740 – Waterproofing of Domestic Wet Areas
2.7 Adhesives
Adhesives used in a waterproofing system shall be –
(a) waterproof, where used to adhere other waterproof
materials; and
(b) compatible with the materials to which they are adhered.
2.8 Sheet Fastenings
Substrate sheet materials shall be fastened or fixed adequately
to the supporting structure.
Discussion: Wet Areas Compliance
Performance Solution Pathway – Volume One
Compliance with all of Part A0 (Application) including:
• A0.3 - performance solutions;
• A0.5 - assessment methods; and
• A0.7 - identifying performance requirements.
Compliance with Part A2 (Acceptance of Design and
Construction) including:
• A2.1 - suitability of materials; and
• A2.2 – evidence of suitability.
Discussion: Wet Areas Compliance
Performance Solution Pathway – Volume Two
Compliance with all of Part 1.0 (Application) including:
• 1.0.3 - performance solutions;
• 1.0.5 - assessment methods; and
• 1.0.7 - identifying performance requirements.
Compliance with Part 1.2 (Acceptance of Design and
Construction) including:
• 1.2.1 - suitability of materials; and
• 1.2.2 – evidence of suitability.
Discussion: Wet Areas Compliance
Performance Solution Pathway – Volumes One & Two
Discussion: Wet Areas Compliance
Discussion: Wet Areas Compliance