4721EC
ECOINSULATION® GLASSWOOL ACOUSTIC 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 ecoinsulation® glasswool insulation, for acoustic systems including installation.

It includes:

Modify or extend the above description to suit the project being specified.  The full range of ecoinsulation® glasswool products are available for mid-floor applications.

 

ecoinsulation® glasswool insulation is available in a range of R-Values, and is made using bio-soluble glasswool with a high percentage of post-consumer recycled glass, bonded with ECOSE® Technology, a binder based on rapidly renewable materials instead of petro-based chemicals, and no added formaldehyde, dyes or artificial colours.  ecoinsulation® glasswool insulation has zero Ozone Depletion Potential (ODP), and zero Global Warming Potential (GWP).

 

NZS 4218 and NZS 4243.1 provide a schedule, a calculation and a modelling method for determining insulation to meet NZBC H1.

Ensure SELECTIONS reflect the project requirements.

1.1
RELATED WORK

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.

Refer to 4721K  Earthwool Glasswool Acoustic Insulation

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

Refer to roofing sections for roofing underlays.

Documents
1.2
DOCUMENTS

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

NZBC C/AS2

Protection from Fire

NZBC G6/AS1

Airborne and impact sound

NZBC G6/VM1

Airborne and impact sound

AS/NZS 3000

Electrical installations (Known as the Australian/New Zealand Wiring Rules)

AS/NZS 5110

Recessed Luminaire Barriers

AS/NZS 60695.11.5

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

 

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.

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

 

AS/NZS 3000:2007 is cited in the Electricity (Safety) Regulations 2010, which is cited by NZBC.  At the time of writing, however, AS/NZS 3000:2018 is not cited.   This section uses both versions where they equally apply, and a date is suffixed where there is a difference e.g. the 2018 version covers most recent technologies.  Amend the section if you want to use a particular version or a particular instance (by suffixing with the version date e.g. AS/NZS 3000:2018).

 

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

NZBC H1/AS1

Energy Efficiency

NZS 3604

Timber-framed buildings

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

AS/NZS 60598.2.2:2001

Luminaires- Particular Requirements - Recessed luminaires

AS/NZS 60598.2.2:2016

Luminaires- Particular Requirements - Recessed luminaires

BRANZ BU 461

Practical sound control

BRANZ BU 539

Recessed downlights

BRANZ publication

House insulation guide

Electricity (Safety) Regulations 2010 (Reprint as at 21 January 2019)

 

H1/AS1, C3.1.2, advises the use of NZS 4246 for the installation of insulation around recessed luminaires.  
NZS 4246 refers to AS/NZS 60695.11.5 and AS/NZS 60598.2.2 (2001 & 2016). The Electricity (Safety) Regulations 2010 only refer to AS/NZS 60598.2.2:2001.

 

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

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

1.3
MANUFACTURER/SUPPLIER DOCUMENTS

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

ecoinsulation® Thermal and Acoustic Wall datasheet

ecoinsulation® glasswool: Installation Instructions datasheet

BRANZ Appraisal 1049 - ecoinsulation® Glasswool

BRANZ Appraisal 1050 - ecoinsulation® Underfloor Insulation

CodeMark Certificate GM-CM30101-revA

 

Manufacturer/supplier contact details

Company:

Eco Insulation Systems Ltd

 

(Manufactured for Eco Insulation Systems Ltd by Knauf Insulation)

Web:

www.ecoinsulation.co.nz

Email:

products@ecoinsulation.co.nz

Telephone:

0800 400 326

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
1.4
WARRANTY - MANUFACTURER/SUPPLIER

Provide a material manufacturer/supplier warranty:

50 years

for unfaced ecoinsulation® glasswool insulation materials

15 years

for ecoinsulation® 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)
1.5
WARRANTY - INSTALLER/APPLICATOR

Provide an installer/applicator warranty:

2-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 installation (check with the installer / applicator)
Requirements
1.6
QUALIFICATIONS - GENERAL

Refer to 1270 CONSTRUCTION for requirements relating to qualifications.

1.7
NO SUBSTITUTIONS

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

Performance - acoustic insulation
1.8
SOUND RATING REQUIREMENTS

Provide sound rated systems as detailed in SELECTIONS.

Performance - Fire properties
1.9
FIRE PROPERTIES

ecoinsulation® glasswool insulation is not deemed combustible, to test criteria under AS/NZS 60695.11.5 Part 11.5: Test Flames - Needle Flame Test (by UL International New Zealand Ltd. Test Report 12910798-SA00, dated 20th June 2019).

NOTE: When insulation abutting or covering recessed downlights is intended to be in contact with IC, CA 80, CA 135 luminaires the insulation must withstand a 30's Needle Flame test to AS/NZS 60695.11.5.  ecoinsulation® 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 Index (BPI).

1.10
CODEMARK CERTIFICATE

ecoinsulation® glasswool insulation   meets the requirements of the NZBC when used in accordance with the conditions and limitations of its Certificate of Conformity.

 

Refer to Conditions and Limitations listed in CodeMark Certificate GM-CM30101-revA, particularly the following items.

Item 2 - Specification of ecoinsulation glasswool insulation products shall be in accordance with product datasheets, including:

KINZ1118790DS, Nov. 2018

ecoinsulation Thermal and Acoustic Wall Insulation

 

Item 3 - Installation shall be carried out by an ecoinsulation® glasswool accedited installer and installed in accordance with NZS 4218:2009 or NZS 4246:2016, and the relevant ecoinsulation® glasswool installation instructions [as listed in the CodeMark to meet the stated thermal performance rating of the insulation].

Installation instructions listed in the CodeMark, including:

KINZ1218806MIS

Thermal and Acoustic Wall

Refer to all Conditions and Limitations listed in CodeMark GM-CM30101-revA.  Items 2 and 3 are listed above for reference to product datasheets and instructions.

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

2
PRODUCTS
Materials - acoustic insulation
2.1
ECOINSULATION - ACOUSTIC INSULATION

to NZBC G6/VM1 and G6/AS1 - Airborne and impact sound - is made using recycled glass, and with ECOSE® Technology bio-based binder.  The wall segment is suitable for acoustic applications in walls, ceilings, and mid-floors.  Refer to SELECTIONS for location, thickness and density options.

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

Components
2.2
TAPES

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

Accessories - General
2.3
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 8°.

2.4
REFLECTIVE FOIL

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

2.5
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
ROUTINE MATTERS

Refer to 1250 TEMPORARY WORKS & SERVICES for protection requirements.

Refer to 1270 CONSTRUCTION for requirements relating to defective or damaged work, removal of protection and cleaning.

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

3.3
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

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

Installation
3.4
INSTALLATION

Lay, install, fit and fix to NZBC C/AS2 Protection from Fire,  NZBC G6/AS1 and G6/VM1 Airbourne and Impact Sound.  Refer to manufacturer installation instructions.

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.

3.5
RECESSED LIGHT FITTINGS - NON-RESIDENTIAL

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 abutting or covering recessed downlights must pass the needle flame test to AS/NZS 60695.11.5, as required by AS/NZS 60598.2.2: 2001 (cited in Electricity (Safety) Regulations, Schedule 4).

 

Note; CA 80, CA135, IC, IC-F & NON-IC are cited in AS/NZS 60598.2.2: 2001.  But CA 90, CA135, IC, IC-4 and Do-not Cover, are only in AS/NZS 60598.2.2: 2016, which makes CA 90, IC-4 & Do-not Cover, alternative solutions.  However all clearances stated comply with AS/NZS 60598.2.2: 2016 and AS/NZS 3000:2018.

 

IC-4 due to low/zero air transfer requirements, is generally recommended for unventilated roof spaces, like skillion/compact and Passive House roofs.

3.6
RECESSED LIGHT FITTINGS - RESIDENTIAL

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.

Insulation abutting or covering recessed downlights must pass the needle flame test to AS/NZS 60695.11.5, as required by AS/NZS 60598.2.2: 2001 (cited in Electricity (Safety) Regulations, Schedule 4 and NZS 4246).

 

Note; CA 80, CA135, IC & IC-F are cited in AS/NZS 60598.2.2: 2001.  But CA 90, CA135, IC, & IC-4, are only in AS/NZS 60598.2.2: 2016, which makes CA 90 & IC-4 fittings alternative solutions.  However all insulation clearances for all the above fittings comply with NZS 4246, which complies with NZBC H1/AS1, C3.1.2.

 

IC-4 due to low/zero air transfer requirements, is generally recommended for unventilated roof spaces, like skillion/compact and Passive House roofs.

3.7
INSULATION CLEARANCES - GENERALLY

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

Type of fitting

Minimum insulation clearance

Comments

Recessed, marked NON-IC, or unmarked

100mm(increase if over 100W)

NON-IC fittings and new or old unmarked & unknown fittings, and/or insulation. Secure insulation.

Recessed, CA 80, CA 90 or CA 135

Abut fittings

Do NOT cover the fittings

Recessed, IC, IC-F or IC-4

Abut & cover fittings

Ensure insulation complies

Recessed, marked Do-Not-Cover

Manufacturers clearances

 

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 & NON-IC are cited in AS/NZS 60598.2.2: 2001.  But CA 90, CA135, IC, IC-4 and Do-not Cover, are only in AS/NZS 60598.2.2: 2016, which makes CA 90, IC-4 & Do-not Cover fittings, alternative solutions.

However for residential applications all insulation clearances for all the above fittings comply with NZS 4246, which complies with NZBC H1/AS1, C3.1.2.

But for Non-residential all clearances stated comply with AS/NZS 60598.2.2: 2016 and AS/NZS 3000:2018.

 

FOR MINIMUM INSULATION CLEARANCES TO INBUILT RECESSED HOT APPLIANCES refer to NZS 4246

 

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.

Amend 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 - Framing
3.8
TIMBER FRAMING

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 ecoinsulaton® glasswool insulation Product Data Sheets, for detailed installation instructions.

3.9
STEEL FRAMING

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.

Installation - acoustic insulation
3.10
ACOUSTIC SEGMENT

Friction fit the ecoinsulation® glasswool insulation acoustic segments in walls, ceilings, and mid-floors to figures 1-5, NZBC G6/AS1 - Airborne and impact sound.  Alternatively, to specific design or NZBC G6/VM1.  For walls, install insulation after one side of the wall lining is fixed to 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
3.11
COMPLETION MATTERS

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

ecoinsulation® 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.ecoinsulationglasswool.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.

Acoustic Insulation - Internal Walls
4.1
ECOINSULATION - INTERNAL WALLS

Location:

~

Brand:

ecoinsulation® glasswool insulation

R-value:

R~

Density rating

~  m³

Thickness:

~ mm

Dimensions:

~

Refer to Compliance - CODEMARK CERTIFICATE for conditions and limitations: Product Schedule.

Note - the R2.2 option is not listed in the CODEMARK CERTIFICATE.

R-value:

Thickness:

Density (Kg/m³)

Dimensions:

R2.2

90mm

10.8

580mm (or 600mm) x 1160mm

R2.4

90mm

14.5

570mm x 1160mm

R2.6

90mm

20.3

420mm x 1160mm

R2.6

90mm

20.3

570mm x 1160mm

R2.6

90mm

20.3

600mm x 1160mm

R2.8

90mm

29.1

420mm x 1160mm

R2.8

90mm

29.1

570mm x 1160mm

R3.2

140mm

9.3

580mm x 1160mm

R3.6

140mm

13.4

570mm x 1160mm

R4.1

140mm

21.0

420mm x 1160mm

Acoustic Insulation - Mid-Floors

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.

4.2
ECOINSULATION - MID-FLOOR

Location:

~

Brand:

ecoinsulation® glasswool insulation

R-value:

R~

Density rating

~  m³

Thickness:

~ mm

Dimensions:

~

Refer to Compliance - CODEMARK CERTIFICATE for conditions and limitations: Product Schedule.

Note - the R2.2 option is not listed in the CODEMARK CERTIFICATE.

R-value:

Thickness:

Density (Kg/m³)

Dimensions:

R2.2

90mm

10.8

580mm (or 600mm) x 1160mm

R2.4

90mm

14.5

570mm x 1160mm

R2.6

90mm

20.3

420mm x 1160mm

R2.6

90mm

20.3

570mm x 1160mm

R2.6

90mm

20.3

600mm x 1160mm

R2.8

90mm

29.1

420mm x 1160mm

R2.8

90mm

29.1

570mm x 1160mm

R3.2

140mm

9.3

580mm x 1160mm

R3.6

140mm

13.4

570mm x 1160mm

R4.1

140mm

21.0

420mm x 1160mm