Carpets
GUIDE NOTE: Refer to Design Guide sections DG/ FABRIC, DG/ MATERIALS AND FINISHES, DG/ FLOOR.
As per current NATSPEC except as follows:
1.4 Submissions
Tests
Submit evidence that each carpet complies with the fire hazard properties required by the NCC + EFSG
1.5 Inspection
Notice
Give sufficient notice so that inspection may be made at the following stages:
- Each batch of material upon delivery of the works
- Subfloor prepared to receive the carpet installation
- Fixings, edge strips, underlay installed ready to lay carpet
- Completed carpet after cleaning and before covering for protection
1.7 Ordering and Delivery
Requirement
Order and confirm delivery instructions with the carpet subcontractor not less than 12 weeks prior to the date required and give 2 weeks notice to the carpet subcontractor of the required laying date.Give a copy of the delivery docket to the Principal’s Authorised Person / Principal’s Representative on delivery of the material to site with the following details:
- Description of carpet and weight of carpet including ACCS or AWTA reference number.
As per current NATSPEC except as follows:
2.5 Mats
General: Provide a mat made to fit each designated mat recess.
Anti-static mat
Type: Anti-static mat with anchors on the underside to prevent slipping on carpet. The mat is to be dissipative of static electricity and free of carbon fibre and ribbon.
Standard: To AS 2834 Computer Accommodation.
Colour: Clear.
Carpet overlay (electrostatic)
Type: Colourfast polypropylene fibre pile electrostatic mat with a polyester primary backing to a high quality vinyl base.
Cork mat
Description: Bonded cork vulcanised mat to form a dense durable resilient floor unit with anti-slip and anti-fatigue characteristics.
General: Comply with OH & S requirements. Provide an anti-slip surface and anti-trip tapered sides.
Thickness: 10mm minimum.
2.6 Underlays
Needled underfelt
Type: Double sided, high density needled underfelt.
Synthetic foam underlay
Type: High density bonded polyurethane foam underlay.
Rubber underlay
Type: Highly resilient natural rubber underlay, suitable for use as a conventional lay product.
Textile underlay
Type: High performance pad underlay conforming with AS 4288 manufactured using recycled textile fabric using the following blends:
- 30% wool (nominal)
- 25% cotton (nominal)
- 30% synthetic fabric (nominal)
- 15% virgin polyester fibre (nominal)
Bonded polyurethane foam
Type: Bonded polyurethane foam
2.7 Adhesives and Tapes
Seam sealing
The seams and cross joints of all conventionally, direct stick or dual bond installed tufted carpets must have seam adhesive applied to both edges prior to heat tape joining.
Edge strips
Type: Heavy duty edge strips appropriate to the floor covering type (tackless or adhesive fixed), capable where necessary of accommodating different levels of adjacent floor finishes.
Material: Extruded aluminium.
Location: At exposed edges of the carpet, and at junctions with differing floor finishes or finishes of a different thickness. Where edge strips occur at doorways, locate the junctions directly below the closed door.
2.10 Stair Nosing
Type: Annodised aluminium stair nosing with carborundum or rubber inserts.
Standard: AS1428.1
2.11 Carpets - Back Printing
Requirement
Carpet: All carpet must have the following information printed on the back of the product for the entire length:
- ACCS (Australian Carpet Classification Scheme) Number, or
- AWTA Test Report Reference Number
Carpet without the back printing is not acceptable and will be rejected.
As per current NATSPEC except as follows:
3.2 Broadloom Carpet Laying
General
Lay carpet on underlay/underfelt - except for stairs and ramps where a direct stick method may be used.
Cross joins
Carpet in high traffic areas is to be free of cross joins. Do not use carpet infill strips in doorways. Avoid cross joins in doorways where possible. If a cross joins does occur at a doorway, locate the join directly below the closed door.
Power stretching
A power stretcher must be used in all areas where a conventional installation method is used.
3.6 Completion
Warranties
Before Completion submit a written warranty on all carpet, underlay/underfelt and accessories for a minimum period of 5 years and a minimum period of 12 months on installation (unless noted otherwise in schedules)..
3.7 Certifcation
Provide certification that the carpet is in accordance with the specification.
As per current NATSPEC except as follows:
Performance Criteria
Selections should be based on the following performance criteria:
- Offer value for money in a Whole of Life framework;
- Provide comfort for students who may undertake floor based activities
- Have appropriate aesthetic appeal
- Offer high durability and robustness
- Provide appropriate functionality for the location and use of the area including:
- Acoustic suitability to expected background and activity noise levels
- Tactile comfort in relation to the usage of the room.
- Support sustainability by having recycling potential at the end of usable life, and/or include recycled content.
- Compliance with NCC Fire Hazard Properties and CRF/SD requirements listed in 4.1 Schedules
- Carpets must be graded by the Australian Carpet Classification Scheme (ACCS). ACCS licensees give a warranty with their carpets; this warranty is subject to proper installation and maintenance procedures (AS 2454 and AS 2455 will apply). The ACCS licensee’s instructions for underlay should must be followed.
- Low VOC emissions in line with the VOC limits stipulated in the Green Star Buildings rating tool
- Carpet tiles are preferred to broadloom carpet.
- Location of carpet tile and carpet to be determined in consultation with School Principal :
- Primary Schools – homebases, libraries, administration and staff rooms
- SSP – homebases, libraries, administration and staff rooms
- Secondary Schools – learning spaces, libraries, administration and staff rooms.Where carpet tiles are installed, provide floor cushions (lily pads) and wool rugs for every Primary and SSP Home Base to facilitate floor based activities.
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Property |
Requirement |
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ACCS grade |
Commercial / Contract Extra Heavy Duty (4 Stars) with cushion backing |
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ACCS ECS Certification |
ECS Level 4 (minimum) |
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Suitable for Stairs Icon |
Stairs |
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Pile: Composition |
100% nylon |
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Pile: Finish |
Tufted loop pile |
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Pile: Mass |
Minimum – 542g / m2 |
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Pile: Thickness |
2.5mm |
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Total thickness |
6 - 8mm |
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Carpet Tile Dimensions |
Plank Format 1000 x 250mm or square format 500 x 500 mm |
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Machine Guage |
Minimum 1/10th guage |
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Dimensional Stability |
Less than 0.2% variation |
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Primary Backing |
Spun bonded polypropylene |
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Secondary Backing |
Cushion back – 3.2mm +/- 0.1 mm thickness 100% recyclable PET, manufactured from minimum 90% recycled PET content |
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Recycled material content |
Minimum 40% total recyclable content by total weight |
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Indoor Air Quality |
Low VOC emission to comply with Green Building Council Green Star rating tool |
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Critical radiant flux |
Greater than > 4.2 kW / m2 |
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Smoke Developed Rate |
Mean less than < 250 percent minutes |
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Australian Standard |
AS / ISO 9239.1 |
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Treatments: Electrostatic protection |
Comply with AATCC 134 less than 3.5Kv at 21 degrees |
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Environmental / ESD Green Accreditation |
Environmental Certification Scheme (ECS) level 4 (minimum) Green Building Council VI compliant ESC level 4 – maximum points Comply with ISO 9001 & ISO 14001 |
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Installation |
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Fixing Method |
Tiles must be full stick. If more than 2mm cupping is apparent after 3 months, contractor must replace installation at no cost to the department. |
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Adhesive |
Water based, low odour, release type adhesive. Contact adhesive is not accepted |
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Australian Standard |
AS 2455.2 |
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Property |
C1 |
C2 |
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Carpet type |
Broadloom 90% wool/10% nylon |
Broadloom 100% wool |
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ACCS Classification |
Commercial / contract Extra Heavy duty 4 stars |
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ACCS ECS Certification |
ECS Level 4 (minimum) |
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Product |
Loop pile |
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Style |
Heather appearance |
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Yarn |
Wool 2 or 3 ply with space dyed nylon 2 or 3 ply yarn as highlighter |
Wool, 2 or 3 ply |
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Pile: Fibre |
90% international blend wools containing specialty wools with crimp and/or medullation, 10% anti static space dyed nylon as highlighter |
100% international wool blends containing specialty wools with crimp and / or medullation |
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Pile: wool fibre quality |
Average not less than 33 microns when measured to AS2001.2.1 |
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Pile: nylon fibre quality |
Not less than 15 denier per filament containing anti static filaments sufficient to reduce electrostatic generation to not more than 3 kilovolts when tested to AATCC134 |
n/a |
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Pile: Total mass |
1627 grams/m2 +/- 5% to AS 2111.11 |
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Pile : Height above backing |
4 - 5mm to AS 2111.5/6/7 |
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Guage |
3.175mm or 2.54 mm |
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Tuft Withdrawal Force |
30 Newtons minimum to AS 2111.15 |
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Backing |
Primary : heat stabilised woven polypropylene minimum mass of 90 grams /m2 Secondary : woven jute with minimum mass of 203 grams /m2 |
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Secondary backing adhesion |
40 Newtons (minimum to AS 2111.16 |
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Indoor Air Quality |
Low VOC emission to comply with Green Building Council Green Star rating tool |
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Extractable matter |
1.5% maximum to AS 2001.3.4 |
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Colour fastness |
Light |
5 - 6 minimum to BS 1006.B02 |
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Shampoo |
3 - 4 minimum to AS 2111.19.2 |
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Rubbing |
3 - 4 minimum to AS 2111.19.1 |
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Dry Cleaning Solvents |
3 - 4 minimum to AS 2001.4.16 |
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Treatments: Insect resistance |
Wool fibres to be treated to AS 2001.6.1 for moth and beetle attack. |
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Treatments: Electrostatic protection |
Required sufficient to reduce electrostatic generation to not more than 3 kilovolts when tested to AATCC134. |
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Critical radiant flux |
Greater than > 4.2 kW / m2 |
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Dimensions (mm) |
Standard broadloom width 3660 +/-1.5% to AS 2111.15 |
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Fixing method |
Dual bond, direct stick or |
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Seaming method |
Seams and cross joints must have seam adhesive applied to both edges prior to |
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Stair nosing : Finish and Colour |
Extruded aluminium. Heavy duty. Carborundum or rubber insert. Fixing : secret fixed, tackless or adhesive fixed. Standard AS1428.1 |
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Edge strip: Finish and colour |
Heavy duty. Fixing : tackless or adhesive fixed. |
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Underlay type |
Property |
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Needled Underfelt : |
Double sided, high density |
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Synthetic foam underlay |
High density bonded polyurethane foam underlay. |
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Rubber underlay |
Highly resilient natural rubber underlay suitable for use as a conventional lay product |
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Textile underlay |
High performance pad underlay to AS 4288 manufactured using recycled textile fabric as follows: 30% wool 25% cotton 30% synthetic fabric 15% virgin polyester fibre |
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Bonded polyurethane foam |
Bonded polyurethane foam |
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Indoor Air Quality |
Low VOC emission to comply with Green Building Council Green Star rating tool |