Refer to ~ for ~

Refer to 4161 UNDERLAYS, FOIL AND DPC for wall underlay and roofing underlay.

Refer to the general section 1232 INTERPRETATION & DEFINITIONS for abbreviations and definitions used throughout the specification.

The following abbreviations apply specifically to this section:

Refer to the general section 1233 REFERENCED DOCUMENTS.  The following documents are specifically referred to in this section:

Documents listed above and cited in the clauses that follow are part of this specification.  However, this specification takes precedence in the event of it being at variance with the cited document.

Manufacturer and supplier documents relating to this part of the work:

Manufacturer/supplier contact details

Provide a warranty for:

• Provide this warranty on the manufacturer/supplier standard form (if not available then use the standard form in the general section 1237WA WARRANTY AGREEMENT)
• Commence the warranty from the date of practical completion of the contract works.

Refer to the general section 1237 WARRANTIES for additional requirements.

Provide an installer/applicator warranty:

• Provide this warranty on the installer/applicator standard form (if not available then use the standard form in the general section 1237WA WARRANTY AGREEMENT).
• Commence the warranty from the date of practical completion of the contract works

Refer to the general section 1237 WARRANTIES for additional requirements.

Refer to 1270 CONSTRUCTION for requirements relating to experience, skill, and qualifications.

Substitutions are not permitted to any of the specified systems, components and associated products listed in this section.

Refer to SELECTIONS for location, type, R-Value, and thickness.

Earthwool® glasswool insulation is non-combustible to test criteria under the 30's Needle Flame Test to AS/NZS 60695.11.5.

Earthwool® glasswool meets the requirements of the NZBC when used in accordance with the conditions and limitations of its Certificate of Conformity. Refer to MANUFACTURER/SUPPLIER DOCUMENTS for CodeMark certificate.

The following Earthwool® glasswool Product Datasheets and Installation Instructions, relevant to this section, listed in the CodeMark conditions and limitations:

Quilted Underfloor is a rectangular batt to NZBC H1/AS1 - AS2 and AS/NZS 4859.1.  Made using recycled glass and with ECOSE® Technology, the underfloor batt is completely wrapped in a breathable a plastic film, providing a wind-wash barrier.

Refer to SELECTIONS for options.

Faced Underfloor is an insulation roll to NZBC H1/AS1-AS2 and AS/NZS 4859.1.  Made using recycled glass, and with ECOSE® Technology, the insulation roll is faced with a black glass wind-wash barrier.  Refer to SELECTIONS for location, type, R-value and thickness.

A rectangular batt to NZBC H1/AS1-AS2 and AS/NZS 4859.1.  Made using recycled glass and with ECOSE® Technology, it is suitable for thermal applications.

Refer to SELECTIONS for options.

A rectangular batt to NZBC H1/AS1-AS2 and AS/NZS 4859.1.  Made using recycled glass and with ECOSE® Technology, it is suitable for thermal applications.

Refer to SELECTIONS for options.

A rectangular batt to NZBC H1/AS1-AS2 and AS/NZS 4859.1.  Made using recycled glass and with ECOSE® Technology, it is suitable for thermal applications.

Refer to SELECTIONS for options.

An insulation roll to NZBC H1/AS1-AS2 and AS/NZS 4859.1.  Made using recycled glass and with ECOSE® Technology, it is suitable for thermal applications.

Refer to SELECTIONS for options.

Polypropylene or similar strapping stapled across framing to retain insulation in wall and ceiling applications.

Refer to 4161 UNDERLAYS, FOIL AND DPC for wire netting used to support the insulation.

Refer to 4161 UNDERLAYS, FOIL AND DPC for reflective foil.

Refer to 4161 UNDERLAYS, FOIL AND DPC for vapour barrier.

Refer to 1270 CONSTRUCTION for requirements relating to delivery. Storage and handling of products.

Do not use damaged or wet insulation material.

The building envelope must be maintained to a weathertight condition to ensure the insulation remains dry.  Cavities must be clean and dry before fitting insulation.

Check work previously carried out and confirm it is of the required standard for this part of the work.

Lay, install, fit and fix insulation without gaps, tucks, folds and over compaction to NZBC H1/AS1 or AS2 and insulation manufacturer's requirements.  For all housing and buildings up to 300m², install in accordance to NZS 4246 sections 5 Walls, 6 Ceilings & Roofs, 7 Underfloor - Suspended Framed Floors and 10 Concrete Slab-on-Ground Insulation, for residential light timber or steel framed buildings.  Allow insulation to re-loft/relax prior to installation.  Do not cover vents.  Refer to manufacturer installation instructions and NZS 4246 for further details.

Residential recessed light fittings to AS/NZS 3000, 4.5.2.3.5;

• Existing fittings or retrofit situations, fittings maybe unmarked
• New fittings can only be labelled - CA 80, CA 90, CA 135, IC, IC-F & IC-4

Refer to clause INSULATION CLEARANCES GENERALLY for clearances.

Non-residential recessed light fittings to AS/NZS 3000, 4.5.2.3.5;

• Existing fittings or retrofit situations, fittings maybe unmarked
• New fittings can only be labelled - CA 80, CA 90, CA 135, IC, IC-F, IC-4, NON-IC or Do-not Cover

Refer to clause INSULATION CLEARANCES GENERALLY for clearances.

Insulation may need to have a gap to some mechanical and electrical services and equipment, including ducts and chimneys.  The gaps should be to the NZS 4246 based tables below or to the equipment manufacturer requirements if they require larger gaps.  Smaller gaps to manufacturer requirements can be used for equipment specifically manufactured with heat shielding or similar (excludes light fittings).  Installed gap not to be more than 50mm bigger than the required gap.

The following tables are subject to:

• The requirements of NZS 4246.
• The insulation is exposed to the source of heat or equipment etc.
• Insulation, has passed the needle flame test to AS/NZS 60695.11.5 and/or is non-combustible.
• Gaps to hot surfaces may have to be increased with non-compliant insulation and plastic/polymeric type insulation (EPS, XPS, PIR, etc), check with insulation manufacturer.
• Gaps to hot surfaces may be able to be reduced with non-combustible insulation, check with equipment manufacturer.
• "Secure insulation" if required means, glue, mechanical fix, or provide fixed barriers at gap edge of insulation to hold in place.  Rigid or semi rigid insulation may only need a firm friction fit (secure loose pieces).

LIGHT FITTINGS

FOR MINIMUM INSULATION CLEARANCES TO INBUILT RECESSED HOT APPLIANCES - REFER TO NZS 4246

INSULATION CLEARANCES FROM EXTRACTS, VENTS, PIPES & ROOF UNDERLAY

Friction fit insulation batt between floor joists and butt joins tightly to ensure there are no gaps.  Staple into the joists at 200mm intervals on both sides of the joist. For pole houses increase the staples to 100mm centres and tape the joins as required.

Ensure the heavier duty grey film is stapled 65mm below the floor, facing down, and that it is pulled tight to provide smooth consistent surface.  Follow the manufacturer installation instructions and refer to NZS 4246 for further guidance on the installation of underfloor insulation.

Staple insulation between floor joists and butt joins tightly to ensure there are no gaps.  Staple into the joists at 200mm intervals on both sides.  Ensure the facing is 75mm below the floor, facing down, and that it is pulled tight so that there are no bulges in accordance with the installation instructions.  Refer to NZS 4246 for installation guidelines and Earthwool® glasswool insulation underfloor Installation Instructions.

Friction fit between framing members and linings.  Cut on site to fill cavity and provide a close even fit.  When cutting to fill a void, oversize by up to 10mm to ensure a tight fit.  Ensure there is a friction fit on all faces of the insulation.  If cavity depth is greater than the insulation nominal thickness, fix or strap the product to secure in accordance with installation instructions.  Cut into smaller pieces for smaller spaces and around penetrations to achieve efficient thermal performance.  Do not fold, tuck or compress the insulation.  Refer to NZS 4246 for installation guidelines and Earthwool® glasswool insulation Product Data Sheets, for detailed installation instructions.

Friction fit inside the steel framing and cut on site to fit nog spacing.  Fill cavity and provide a close even fit.  When cutting to fill a void, oversize by up to 10mm to ensure a tight fit.  Do not fold, tuck or compress the insulation.  Cut to smaller pieces for smaller spaces and around penetrations to achieve efficient thermal performance.

Friction fit insulation between framing members and linings.  Cut on site to fill cavity and provide a close even fit.  When cutting to fill a void, oversize by up to 10mm to ensure a tight fit.  Ensure there is a friction fit on all faces of the insulation.  If cavity depth is greater than the insulation nominal thickness, fix or strap the product to ensure the insulation is installed hard against the flooring or the ceiling lining.  Cut into smaller pieces for smaller spaces and around penetrations to achieve efficient thermal performance. Refer to NZS 4246 for installation guidelines.

Friction fit insulation between framing members.  Cut across the roll to fit nogs and small spaces around penetrations.  Leave no gaps and maintain full thickness of insulation over the whole of the installation.  Leave gap around metal flues to the manufacturer requirements.

Loose lay over ceiling framing and between truss chords.  Fit securely around all penetrations, leave clearances where required.  Cut ceiling roll as required.

Friction fit first layer of ceiling insulation roll parallel to and between ceiling framing members.  Run a second layer of insulation roll at 90° to and over the first layer over framing members. Use a sharp craft knife to cut to required size to fit nogs and small spaces around penetrations.  Leave no gaps and maintain full thickness of the insulation over the whole of the installation.  Leave gap around metal flues to the manufacturer requirements.

Friction fit insulation between joists/rafters.  Use a sharp craft knife to cut to required size or around penetrations if required.  Maintain a minimum clearance of 25mm between the insulation and the roofing underlay, to NZS 4246 clause 6.2.10, except where a solid timber (or plywood) substrate is installed under the roof cladding.

Friction fit insulation between joists/rafters. Use a sharp craft knife to cut to required size or around penetrations if required.  Maintain a minimum clearance of 20mm between the underside of the substrate (plywood etc) and any insulation to NZBC E2/AS1, clause 8.5.2.

Refer to 1270 CONSTRUCTION for completion requirements and if required commissioning requirements.

Earthwool® glasswool insulation packaging is recyclable.