4710EW
EARTHWOOL® GLASSWOOL INSULATION
1
GENERAL

If you have pre-customised this work section using the "questions and answers" provided as part of the downloading process, it may be necessary to amend some clauses to suit the final project-specific version.

 

The section must still be checked and customised to suit the project being specified, by removing any other irrelevant details and adding project-specific details and selections.

 

This section relates to Earthwool® glasswool thermal and acoustic insulation systems including installation.

It includes:

Earthwool® glasswool insulation

Modify or extend the above description to suit the project being specified.

 

 NOTE - Retrofitting exterior walls, or internal firewalls, insulation requires a Building Consent to the Building Act 2004, Schedule 1, Clause 13.

1.1
RELATED WORK

Refer to ~ for ~

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

Refer to 4710JS JET STREAM® MAX blown-in insulation, for areas where installing batt insulation is impractical.

Include cross references to other sections where these contain related work.

Refer to roofing sections for roofing underlays.

1.2
ABBREVIATIONS AND DEFINITIONS

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

 

The following abbreviations apply specifically to this section:

~

~

Documents
1.3
DOCUMENTS

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

NZBC C/AS1-C/AS2

Protection from fire

NZBC H1/AS1

Energy efficiency

NZBC H1/VM1

Energy efficiency

AS/NZS 3000

Electrical installations (Australian/New Zealand Wiring Rules)

AS/NZS 4859.1:2002

Materials for the thermal insulation of buildings - General criteria and technical provisions

AS/NZS 5110

Recessed Luminaire Barriers

AS/NZS 60598.2.2:2001

Luminaires- Particular Requirements - Recessed luminaires

AS/NZS 60695.11.5

Fire hazard testing - Test flames - Needle-flame test method - Apparatus, conformity test arrangement and guidance

NZS 4214

Methods of determining the total thermal resistance of parts of buildings

NZS 4218

Thermal insulation - Housing and small buildings

NZS 4220

Code of Practice for energy conservation in non-residential buildings

NZS 4246

Energy efficiency - Installing bulk thermal insulation in residential buildings

Delete from the DOCUMENTS clause any document not cited.  List any additional cited documents.

NOTE: AS/NZS 4859.1:2002 is cited in the NZBC H1/AS1. New version AS/NZS 4859.1&.2:2018 not yet cited.

AS/NZS 4859.1:2002 superseded by AS/NZS 4859.1:2018 Part 1 and AS/NZS 4859.2:2018 Part 2

 

The following are related documents and if referred to in the work section need to be added to the list of DOCUMENTS.

NZS 3604

Timber-framed buildings

NZS 4243.1

Energy Efficiency - Large Buildings: Building thermal Envelope

AS/NZS 4859.1:2018

Thermal insulation materials for buildings - Part 1: General criteria and technical provisions

AS/NZS 4859.2:2018

Thermal insulation materials for buildings - Part 2: Design

ISO 16283.1

Airborne sound insulation

SNZ/PAS 4244

Insulation of lightweight-framed and solid-timber houses

BRANZ BU 461

Practical sound control

BRANZ BU 539

Recessed downlights

BRANZ publication

House insulation guide

 

NOTE: AS/NZS 4859.1:2002 superseded by AS/NZS 4859.1:2018 Part 1 and AS/NZS 4859.2:2018 Part 2

1.4
MANUFACTURER/SUPPLIER DOCUMENTS

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

BRANZ Appraisal 648 - Earthwool® glasswool Insulation

BRANZ Appraisal 975 - Earthwool® glasswool insulation: quilted underfloor batt.

CodeMark

GM-CM30095-RevA1

Refer to conditions and limitations listed in the CodeMark.

Refer to CODEMARK CERTIFICATE for a list of Product datasheets and installation instructions

GreenTag

KNI-001-v2-2016

 

Manufacturer/supplier contact details

Company:

Knauf Insulation New Zealand

Web:

www.knaufinsulation.co.nz

Email (Technical):

tech.nz@knaufinsulation.com

Email (Sales):

sales.nz@knaufinsulation.com

Telephone:

0800 KNAUFI (562 834)

It is important to ensure that all personnel on site have access to accurate, up to date technical information on the many products, materials and equipment used on a project.  In most cases individual products are not used in isolation, but form part of a building process.  Also a particular manufacturer and/or supplier requirements for handling, storage, preparation, installation, finishing and protection of their product can vary from what might be considered the norm.  Access to technical information can help overcome this potential problem.

Warranties
1.5
WARRANTY

Provide a warranty for:

50 years:

For unfaced Earthwool® glasswool insulation materials

15 years:

For Earthwool® glasswool insulation underfloor

 

  • 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.

~ years to ~ years are the sort of warranty periods that can be expected depending on material selection and project conditions.  Check with the manufacturer/supplier for their specific periods.

 

Modify or expand the clause to suit project or manufacturer/supplier requirements, options include:

  • Modify the form to be used
  • Commence the warranty from the date of purchase (check with the manufacturer/supplier)
1.6
WARRANTY - INSTALLER/APPLICATOR

Provide an installer/applicator warranty:

~ -years

For installation of insulation

 

  • 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.

~ years to ~ years are the sort of warranty periods that can be expected depending on material selection and project conditions.  Check with the manufacturer/supplier for their specific periods.

 

Modify or expand the clause to suit project or manufacturer/supplier requirements, options include:

  • Modify the form to be used
  • Commence the warranty from the date of purchase (check with the manufacturer/supplier)
Requirements
1.7
QUALIFICATIONS - GENERAL

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

1.8
NO SUBSTITUTIONS

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

Performance - thermal insulation
1.9
R-VALUE RATING

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

Note - for external envelope, both acoustic and thermal requirements must be met.

Performance - acoustic insulation
1.10
SOUND RATING REQUIREMENTS

Provide sound rated systems as detailed in SELECTIONS.

Use site performance testing only where this is specifically required.

To meet NZBC G6/AS1, acoustic insulation density must be 10kg/m³ or greater at 75mm thickness

Performance - Fire properties
1.11
FIRE PROPERTIES

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

When insulation abutting or covering recessed downlights is intended to be in contact with IC, CA 80, CA 135 luminaries the insulation must withstand a 30's Needle Flame test to AS/NZS 60695.11.5.  Earthwool® glasswool insulation meets this requirement.

Compliance

NZBC H1 describes three methods to show compliance with the insulation requirements in H1: Schedule Method, Calculation Method, and Building Performance Method (BPI).

1.12
CODEMARK CERTIFICATE

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 are listed in the CodeMark conditions and limitations:

- Acoustic:

Product datasheet ref: KINZ0914116DS, January 2017

- Ceiling batts:

Product datasheet ref: KINZ1213029DS, April 2017

- Ceiling Roll:

Product datasheet ref: KINZ0914115DS, January 2017

- Underfloor Roll:

Product datasheet ref: KINZ0616380DS, June 2016

- Wall:

Product datasheet ref: KINZ00914114DS, January 2017

- Multi-Use roll:

Product datasheet ref: KINZ0616396DS, June 2017

- Quilted underfloor batt:

Product datasheets ref KINZ0317511DS, August 2017

 

 

- Ceiling batt:

Installation instructions, ref: KINZ1017631MIS

- Ceiling Rolls:

Installation instructions, ref: KINZ1017632MIS

- Quilted Underfloor batt:

Installation instructions, ref: KINZ0817602MIS

- Underfloor Roll:

Installation instructions, ref: KINZ1017636MIS

- Wall batts:

Installation instructions, ref: KINZ1017633MIS

The certificate provides third parties compliance to NZBC Clauses and standards specified within the certificate, provided that installation of the system is in accordance with conditions and limitations of its Certificate of Conformity - Application Guidelines and Datasheets listed in this clause are from the CodeMark conditions and limitations.

2
PRODUCTS

Earthwool® glasswool insulation is a bio-soluble glasswool made using up to 80% recycled glass,bonded with ECOSE® Technology, a bio-based binder using rapidly renewable materials instead of petro-based chemicals.  It contains no added formaldehyde, dyes or artificial colours.

Earthwool® glasswool insulation has a zero Ozone Depletion Potential (ODP) rating, and Global Warming Potential (GWP) of zero.

Materials - Underfloor Thermal Insulation
2.1
EARTHWOOL® GLASSWOOL INSULATION: QUILTED UNDERFLOOR BATTS WITH WIND-WASH BARRIER

Quilted Underfloor is a rectangular batt to NZBC H1/AS1, AS/NZS 4859.1:2002.  Made using recycled glass and with ECOSE® Technology, the underfloor batt is completely wrapped in a breathable plastic film, providing a wind-wash barrier.

Refer to SELECTIONS for options.

2.2
EARTHWOOL® GLASSWOOL INSULATION: UNDERFLOOR ROLLS WITH WIND-WASH BARRIER

Faced Underfloor is an insulation roll to NZBC H1/AS1, AS/NZS 4859.1:2002.  Made using recycled glass, and with ECOSE® Technology, the insulation roll is faced with a black glass wind-wash barrier.

Refer to SELECTIONS for options.

Materials - External Wall Thermal Insulation
2.3
EARTHWOOL® GLASSWOOL INSULATION: WALL BATTS

A rectangular batt to NZBC H1/AS1, AS/NZS 4859.1:2002.  Made using recycled glass and with ECOSE® Technology, it is suitable for thermal applications.

Refer to SELECTIONS for options.

Materials - Internal Wall Acoustic Insulation
2.4
EARTHWOOL® GLASSWOOL INSULATION: WALL BATTS

A rectangular batt to NZBC H1/AS1, AS/NZS 4859.1:2002.  Made using recycled glass and with ECOSE® Technology, it is suitable for acoustic applications.

Refer to SELECTIONS for options.

Materials - Mid-Floor Thermal and Acoustic Insulation

Most of the Earthwool® glasswool range of products can be used for mid-floor applications.

NOTE - Refer to the CodeMark for the range of products - select the insulation R-Value with best fit for the cavity.

2.5
EARTHWOOL® GLASSWOOL INSULATION: MID-FLOOR (BATTS OR ROLLS)

A rectangular batt, or roll, to NZBC H1/AS1, AS/NZS 4859.1:2002. Made using recycled glass and with ECOSE® Technology.

Refer to SELECTIONS for options.

Materials - Ceiling Thermal Insulation
2.6
EARTHWOOL® GLASSWOOL INSULATION: CEILING BATTS

A rectangular batt to NZBC H1/AS1, AS/NZS 4859.1:2002.  Made using recycled glass and with ECOSE® Technology, it is suitable for thermal and acoustic applications.

Refer to SELECTIONS for options.

2.7
EARTHWOOL® GLASSWOOL INSULATION: CEILING ROLLS

An insulation roll to NZBC H1/AS1, AS/NZS 4859.1:2002.  Made using recycled glass and with ECOSE® Technology, it is suitable for thermal and acoustic applications.

Refer to SELECTIONS for options.

2.8
EARTHWOOL® GLASSWOOL INSULATION: ROOF BLANKET

A rectangular batt to NZBC H1/AS1, AS/NZS 4859.1:2002.  Made using recycled glass and with ECOSE® Technology, it is suitable for thermal and acoustic applications.

Refer to SELECTIONS for options.

Components
2.9
TAPES:

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

Accessories - General
2.10
WIRE NETTING

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

Wire netting is used to support roofing underlays, particularly those that are not self supporting.  Wire netting must be used to support all types of underlay where the roof has a pitch below 8º

2.11
REFLECTIVE FOIL

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

2.12
VAPOUR BARRIER

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

3
EXECUTION
Conditions
3.1
DELIVERY, STORAGE & HANDLING OF PRODUCTS

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

Use this standard generic clause and if appropriate add additional special requirements.

Do not use damaged or wet insulation material.

3.2
HAZARD & RISK MANAGEMENT

     To Health and Safety at Work Act 2015 and take all safety precautions necessary to reduce potential hazards and risks.  Refer also to NZS 4246, Appendix B. - Health and Safety.

3.3
ROUTINE MATTERS

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.

3.4
PRE-INSTALLATION REQUIREMENTS

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

Moisture content:

~% maximum for framing

Location and framing:

are free from moisture, that the cavities are not interconnected.

Insulation re-loft

Allow to re-loft/relax to specified thickness.

Discard

Damaged or wet insulation

Underlays

Ensure roof and wall underlays are installed, dry, clean, undamaged and free of debris before being covered with insulation

Vapour Barriers

Ensure vapour barrier forms one homogeneous sheet

Thermal insulation requirements are defined by climate zone and calculation methods set out in NZS 4218.  Refer also to NZBC H1/VM1.

Climate zone tables are also appended to NZS 4246.

NOTE - BCA's may have acoustic requirements for the building external envelope.

Installation
3.5
INSTALLATION - GENERAL

Lay, install, fit and fix to NZBC H1/AS1: Energy efficiency, 2.0 Building thermal envelope, and to manufacturer requirements.  Install in housing to NZS 4218 and NZS 4246.  Do not cover vents.  Allow a clear gap around metal flues as recommended by the fireplace manufacturer.  Refer to manufacturer installation instructions and NZS 4246 for further details.

These standards give minimum building element thermal resistance (R-values). Achieving these will depend on the quality of the insulation.

CAUTION: Electrical cables and equipment partially or completely surrounded with bulk thermal insulation may overheat and fail. This applies to wiring installed prior to 1989.

3.6
RECESSED LIGHT FITTING CLEARANCES - RESIDENTIAL

Residential applications - The clearance between Earthwool glasswool insulation and recessed downlights:

  • Ensure new recessed downlights are one of the new classes classified in AS/NZS 60598.2.2; CA 80, CA 135, IC and IC - F
  • Classification type CA 80, CA 135, to AS/NZS 60598.2.2; insulation can abut the sides.
  • Classification type IC and IC - F, to AS/NZS 60598.2.2 insulation can abut and cover over the top of the downlight.
  • Classification type NON IC to AS/NZS 60598.2.2 insulation cannot abut or cover the downlight. This class of downlights is banned from residential applications.
  • Provide larger clearances where required by the light manufacturer.
  • In a retrofit situation where recessed downlights are unclassified or unknown, ensure 100mm clearance between insulation and downlights to AS/NZS 3000, figure 4.9.

This section used AS/NZS 60598.2.2:2001 which is cited in NZBC C/AS1 and C/AS2.  As AS/NZS 60598.2.2:2016 is not cited at time of writing, it is not used in this section.  If you use AS/NZS 60598.2.2:2016 as an alternative solution modify this section accordingly.  AS/NZS 60598.2.2:2001 and NZS 4246 both state that loose-fill insulation shall not abut or cover recessed luminaires (downlights) unless specifically allowed by the luminaire manufacturer.

3.7
RECESSED LIGHT FITTING CLEARANCES - NON-RESIDENTIAL

Non-Residential applications - The clearance between Earthwool glasswool insulation and all recessed light fittings:

  • 100mm gap to NZBC C/AS2 and AS/NZS 3000, figure 4.9
  • Provide larger clearances where required by the light manufacturer.
  • In a retrofit situation where recessed downlights are unclassified or unknown, ensure 100mm clearance from the insulation to AS/NZS 3000, figure 4.9.

Insulation abutting or covering recessed luminaires (downlights) must pass the needle flame test to AS/NZS 60695.11.5.

NZBC C/AS2 regulates that non-residential installations must have 100mm clearance, unless it passes the needle flame test. Earthwool glasswool complies with AS/NZS 60695.11.5, refer to clause FIRE PROPERTIES.

This section uses AS/NZS 60598.2.2:2001 which is cited in NZBC C/AS1 and C/AS2. As AS/NZS 60598.2.2:2016 is not cited at time of writing, it is not used in this section. If you use AS/NZS 60598.2.2:2016 as an alternative solution modify this section accordingly.

AS/NZS 60598.2.2:2001 and NZS 4246 both state  that loose-fill insulation shall not abut or cover recessed luminaires (downlights) unless specifically allowed by the luminaire manufacturer.

3.8
INSULATION CLEARANCES FROM HEAT SOURCES - GENERAL

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).

 

INSULATION CLEARANCES FROM RECESSED LIGHT FITTINGS

Type of fitting

Minimum insulation clearance

Comments

Unmarked recessed

100mm

New or old unmarked & unknown fittings and/or insulation. Secure insulation.

Do NOT cover fittings.

CA 80, CA 90 or CA 135 recessed

Abut in residential.

100mm in others

Do NOT cover the fittings.

For residential loose fill insulation, refer to NZS 4246 figure 4.

IC, IC-F or IC-4 recessed

Abut in residential.

100mm in others

Cover in residential only except for residential loose fill insulation, refer to NZS 4246 figure 7.

Do NOT cover in others

Independent control gear

Place on top of insulation and 50mm from fitting

If not on top allow 50mm clearance to insulation, do not cover. Includes, transformers, ballasts & drivers etc.

Maintain clearance by placing guard around control gear, refer to NZS 4246 figure 15.

Surface fittings not exposed to insulation

Nil

Where surface fittings are isolated from insulation by appropriate linings. Excludes high heat fittings.

Surface fittings & exposed insulation

200mm

This is exposed insulation to any part of the exposed fitting & bulb/tube (e.g. exposed light in an unlined basement). Secure insulation.

Note; CA 80, CA135, IC & IC-F are cited in NZBC C/AS's and AS/NZS 60598.2.2: 2001.  But CA 90, CA135, IC & IC-4 only are in AS/NZS 60598.2.2: 2016, which makes CA 90 & IC-4 alternative solutions.  However all clearances stated comply with AS/NZS 60598.2.2: 2016 for residential.

 

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

 

INSULATION CLEARANCES FROM EXTRACTS, VENTS, PIPES & ROOF UNDERLAY

Application

Minimum insulation clearance

Comments

Ducted fan motors

50mm

Includes ducted rangehoods, extractors etc. Applies to the motor unit and electrical enclosures (not the ducts).

Ducted fan ducts

Abut

Excludes motor unit and electrical enclosures.

Unducted fan motors usually discharging to ceiling space

200mm

Includes unducted, rangehoods, extractors etc, discharging into roof space.

To prevent debris falling into motor.

Clearance may be able to be reduced, by providing a fixed barrier around the vent.

Passive vents (still in use)

200mm

To prevent debris falling through. Clearance may be able to be reduced, with more cohesive insulation, like some of the rigid plastic types or providing a fixed barrier around the vent.

Plumbing penetrations through floors

100mm

Keep gap between pipe penetration and floor insulation in case of leaks.

Roofing material/underlay

25mm

From underside of roofing or flexible roofing underlay, to prevent wicking.

NOTE - unducted fans (bathroom & kitchen extracts) and passive vents discharging into ceiling spaces are not recommended and are probably difficult to achieve under the NZBC, but may be encountered in existing buildings.

Modify this whole clause to suit the project requirements.

These tables in part, may repeat some information that is also in other clauses, usually it is not identical and provides further detail.  It is an option to delete the repeated information from here or the other related clause if it is necessary, or leave both instances to reinforce the point.

Installation - Underfloor insulation
3.9
QUILTED UNDERFLOOR BATTS

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.

3.10
UNDERFLOOR ROLLS

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.

Installation - Wall Framing
3.11
TIMBER FRAMING

Friction fit wall batt 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 listed in the CodeMark, for detailed installation instructions.

3.12
STEEL FRAMING

Friction fit wall batt inside the steel studs 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.

Installation - Mid-floor insulation
3.13
MID-FLOOR FRAMING

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.

Installation - Ceilings/Skillion Roofs/Membrane Roofs and Below Decks.
3.14
SINGLE LAYER BATTS - BETWEEN CEILING FRAMING

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.

3.15
SINGLE LAYER ROLLS - OVER CEILING FRAMING

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

3.16
DOUBLE LAYERED INSULATION - SINGLE LAYER BATTS WITH SINGLE LAYER ROLLS

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.

Note: 90mm high density (wall) product can be used as the first layer of a double layer system layer and is extremely effective as it is the same height as the bottom chord of the truss or joist.

3.17
CEILING INSULATION EDGE DETAIL

Where perimeter of ceiling space is too low to allow full depth of insulation plus the 25mm air gap to the underlay, provide reduced perimeter insulation to NZS 4246.6.2 and maintain the 25mm gap.

3.18
BETWEEN RAFTERS (SKILLION ROOF) - INSULATION CLEARANCES

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 used under the roof cladding.

This is to prevent wicking.  Should the 25mm insulation gap need to be reduced, it will be specific design.

Note that some roofs may require a ventilation gap under a solid timber substrate.

Modify clause to suit project requirements.

3.19
BELOW MEMBRANE ROOFS AND DECKS - INSULATION CLEARANCES

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

Should the 20mm insulation gap need to be reduced, it will no longer be an Acceptable Solution but an Alternative Solution.

Modify clause to suit project requirements.

Installation - acoustic insulation
3.20
ACOUSTIC INSULATION - BATTS AND ROLLS

Friction fit batt, or roll, in place to completely fill the whole of the cavities, after the wall lining is fixed to one side of the partition.  Slightly oversize to retain friction fit.  Keep clean and undamaged until closed in.  Close in as soon as possible after fixing.

Completion & Commissioning
3.21
COMPLETION MATTERS

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

Earthwool® glasswool insulation packaging is recyclable.

Use this standard generic clause and if appropriate add additional special requirements.

4
SELECTIONS

For further details on selections go to www.knaufinsulation.co.nz

Substitutions are not permitted to the following, unless stated otherwise.

If substitutions are permitted modify the statement above, ensure the NO SUBSTITUTIONS clause from GENERAL is treated the same.

 

Select the options to suit the project and delete options not specified.

Underfloor - Thermal Insulation
4.1
EARTHWOOL® GLASSWOOL INSULATION: QUILTED UNDERFLOOR BATTS WITH WIND-WASH BARRIER

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R 1.5

Thickness:

70 mm

Size:

470 x 2700

Refer to Compliance CODEMARK CERTIFICATE for Product Datasheet reference.

4.2
EARTHWOOL® GLASSWOOL INSULATION: UNDERFLOOR ROLLS WITH WIND-WASH BARRIER

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R 1.8

Thickness:

75 mm

Size:

~

Dimension options - Refer to Compliance CODEMARK CERTIFICATE for Installation Instructions reference:

R-value:

Thickness:

Size:

R1.8

75mm

500mm x 10000mm

R1.8

75mm

600mm x 10000mm

External Wall - Thermal Insulation
4.3
EARTHWOOL® GLASSWOOL INSULATION: EXTERNAL WALL BATTS

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R ~

Thickness:

~ mm

Size:

~

R-Value:

Thickness:

Size:

R2.2

90 mm

580 mm x 1160 mm

R2.4

90 mm

580 mm x 1160 mm

R2.6

90 mm

430 mm x 1160 mm

R2.6

90 mm

580 mm x 1160 mm

R2.8

90 mm

430 mm x 1160 mm

R2.8

90 mm

580 mm x 1160 mm

R3.2

140 mm

580 mm x 1160 mm

R3.6

140 mm

580 mm x 1160 mm

R4.1

140 mm

580 mm x 1160 mm

Internal Walls - Acoustic Insulation
4.4
EARTHWOOL® GLASSWOOL INSULATION BATTS - FOR TIMBER FRAMED INTERNAL WALLS

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R ~

Density:

~

Thickness:

~ mm

Size:

~

Batts for timber framed walls:

Density (kg/m³)

R-Value:

Thickness

Size:

11.0

R1.3

50 mm

600 mm x 2700 mm

11.0

R1.9

75 mm

600 mm x 2700 mm

14.0

R1.4

50 mm

580 mm x 1160 mm

14.0

R2.0

75 mm

580 mm x 1160 mm

20.0

R2.6

90 mm

430 mm x 1160 mm

20.0

R2.6

90 mm

580 mm x 1160 mm

27.0

R2.8

90 mm

430 mm x 1160 mm

27.0

R2.8

90 mm

580 mm x 1160 mm

4.5
EARTHWOOL® GLASSWOOL INSULATION ROLLS - FOR STEEL FRAMED INTERNAL WALLS

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R ~

Density:

~

Thickness:

~ mm

Size:

~

Batts for steel framed internal walls:

Density (kg/m³)

R-Value:

Thickness

Size:

11.0

R1.3

50 mm

600 mm x 2700 mm

11.0

R1.9

75 mm

600 mm x 2700 mm

Mid-Floor - Thermal and Acoustic Insulation
4.6
EARTHWOOL® GLASSWOOL INSULATION: MID-FLOOR BATTS

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R ~

Density:

~

Insulation category / type:

~

Thickness:

~ mm

Size:

~

NOTE:  The full range of Earthwool® glasswool products are available for mid-floor applications.

Refer to various Batts listed in the CodeMark - Select the insulation R-Value with best fit for the framing cavity.

 

Acoustic Batts

Density (kg/m³)

R-Value:

Thickness:

Size:

11.0

R1.3

50 mm

600 mm x 2700 mm

11.0

R1.9

75 mm

600 mm x 2700 mm

14.0

R1.4

50 mm

580 mm x 1160 mm

14.0

R2.0

75 mm

580 mm x 1160 mm

20.0

R2.6

90 mm

430 mm x 1160 mm

20.0

R2.6

90 mm

580 mm x 1160 mm

27.0

R2.8

90 mm

430 mm x 1160 mm

27.0

R2.8

90 mm

580 mm x 1160 mm

4.7
EARTHWOOL® GLASSWOOL INSULATION: MID-FLOOR ROLLS

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R ~

Density:

~

Insulation category / type:

~

Thickness:

~ mm

Size:

~

NOTE:  The full range of Earthwool® glasswool products are available for mid-floor applications.

Refer to various Batts listed in the CodeMark - Select the insulation R-Value with best fit for the framing cavity.

 

Acoustic Rolls

Density (kg/m³)

R-Value:

Thickness:

Size:

12.1

R1.8

70 mm

1200 mm x 13500 mm

12.2

R2.9

115 mm

1200 mm x 8500 mm

11.0

R3.2

135 mm

1200 mm x 8000 mm

11.0

R3.6

150 mm

1200 mm x 7000 mm

Ceiling - Thermal Insulation
4.8
EARTHWOOL® GLASSWOOL INSULATION: CEILING BATTS

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R ~

Thickness:

~ mm

Size:

~

R-Value/thickness - as listed in the CodeMark:

R-value:

Thickness:

Size:

R3.3

155 mm

430 mm x 1160 mm

R3.6

175 mm

430 mm x 1160 mm

R4.1

195 mm

430 mm x 1160 mm

R5.2

210 mm

430 mm x 1160 mm

R6.3

275 mm

430 mm x 1160 mm

4.9
EARTHWOOL® GLASSWOOL INSULATION: CEILING ROLLS

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R ~

Thickness:

~ mm

Size:

~

R-Value/thickness:

R-value:

Thickness:

Size:

R1.8

70 mm

1200 mm x 13500 mm

R2.9

115 mm

1200 mm x 8500 mm

R3.2

135 mm

1200 mm x 8000 mm

R3.6

150 mm

1200 mm x 7000 mm

Refer to Compliance CODEMARK CERTIFICATE for Product Datasheet reference.

4.10
EARTHWOOL® GLASSWOOL INSULATION:  ROOF BLANKET

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R ~

Thickness:

~ mm

Size:

~

R-Value Options

R-value:

Thickness:

Size:

R1.4

55 mm

1200 mm x 30000 mm

R1.6

60 mm

1200 mm x 28000 mm

R1.9

75 mm

1200 mm x 23000 mm

R2.4

100 mm

1200 mm x 17500 mm

R2.6

105 mm

1200 mm x 16500 mm

R3.1

120 mm

1200 mm x 14500 mm

R3.3

130 mm

1200 mm x 13500 mm

R3.6

150 mm

1200 mm x 7000 mm

Roof - Thermal Insulation
4.11
EARTHWOOL® GLASSWOOL INSULATION: SKILLION ROOF

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R ~

Thickness:

~ mm

Size:

~

Product and R-Value Options,

Ceiling Batts:

R-Value

Thickness:

Size:

3.2

105 mm

430 mm x 1160 mm

 

Ceiling Blankets::

R-Value

Thickness:

Size:

R1.8

70 mm

1200 mm x 13500 mm

R2.9

115 mm

1200 mm x 8500 mm

R3.2

135 mm

1200 mm x 8000 mm

R3.6

150 mm

1200 mm x 7000 mm

 

Wall Batts (also can be used in Skillion roof):

R-Value

Thickness:

Size:

R2.8

90 mm

430 mm x 1160 mm

R2.8

90 mm

580 mm x 1160 mm

R3.2

140 mm

580 mm x 1160 mm

R3.6

140 mm

580 mm x 1160 mm

R4.1

140 mm

580 mm x 1160 mm

Note - these R-Values are from current Product Datasheets. To conform with the CodeMark, the datasheet numbers must match those listed in the CodeMark Conditions and Limitations.

4.12
EARTHWOOL® GLASSWOOL INSULATION: MEMBRANE ROOF AND/OR BELOW DECKS

Location:

~

Brand:

Earthwool® glasswool insulation

R-value:

R ~

Thickness:

~ mm

Size:

~

Product and R-Value Options,

Ceiling Batts:

R-Value

Thickness:

Size:

3.2

105 mm

430 mm x 1160 mm

 

Ceiling Blankets::

R-Value

Thickness:

Size:

R1.8

70 mm

1200 mm x 13500 mm

R2.9

115 mm

1200 mm x 8500 mm

R3.2

135 mm

1200 mm x 8000 mm

R3.6

150 mm

1200 mm x 7000 mm

 

Wall Batts (also can be used in Membrane roof):

R-Value

Thickness:

Size:

R2.8

90 mm

430 mm x 1160 mm

R2.8

90 mm

580 mm x 1160 mm

R3.2

140 mm

580 mm x 1160 mm

R3.6

140 mm

580 mm x 1160 mm

R4.1

140 mm

580 mm x 1160 mm

Note - these R-Values are from current Product Datasheets. To conform with the CodeMark, the datasheet numbers must match those listed in the CodeMark Conditions and Limitations.