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Glasswool Ceiling Blanket

Premier Glasswool is a resin-bonded thermal insulation material made using up to 90% recycled glass. It is designed for use in residential and commercial ceiling applications. Premier Glasswool carries a 50 year durability warranty.

  • Format: Roll form
  • Thicknesses: 145, 155, 175mm
  • Standard width: 1200mm 
  • R-values: R3.3, R3.6, R4.1
Key Features
  • 50 year durability warranty
  • BRANZ appraised
  • Manufactured from 90% recycled glass
  • Cost effective, flexible, and easy to install
  • Non-combustible
  • Select options are Eco Choice Aotearoa Certified — see Data Sheet
Eco Choice Aotearoa (ECNZ) Licensed
Eco Choice Aotearoa
Recycled Content (Pre-Consumer)
Pre-Consumer Recycled Content
Scope of Use

Premier Glasswool provides thermal insulation for use in ceilings in both residential and commercial construction. 

Double-Layer Ceiling Installations:

  • For higher R-value ceiling installations 'double-layer' installation is recommended to reduce thermal bridging.
  • The bottom layer of insulation should be same thickness as the bottom chord, ideally high-density, and installed between the trusses.
  • The second (top) layer should be installed tight around the trusses with joins off-set to the bottom layer of insulation.
  • This will ensure a full cover of insulation and reduce heat-loss through the timber.

Rolls are available in:

  • Thicknesses: 145, 155, 175mm
  • Standard width: 1200mm 
  • R-values: R3.3, R3.6, R4.1

See Data Sheet and Installation Guide for full information.

Contact Premier Insulation for specification and H1 support.

Limitations on Use
  • Must be installed in accordance with Premier Insulations' installation guide and other literature
  • Premier Insulation should not be crushed, folded, or compressed

Premier Glasswool must be:

  • Installed and maintained in a dry, protected environment
  • Installed in a building where provisions of NZBC E2 and E3 are met
  • Installed to the requirements of NZS 4246:2016: Energy Efficiency-Installing bulk thermal Insulation in Residential Buildings

Statement of Building Code Compliance

Premier Glasswool is designed for the thermal insulation of buildings in accordance with the New Zealand Building Code (NZBC) H1 Energy Efficiency.

When installed in accordance with the manufacturer's instructions, Premier Glasswool will meet or contribute to meeting the following NZBC clauses:

  • Clause B2 DURABILITY: Performance B2.3.1 (a) not less than 50 years, B2.3.1 (b) 15 years and B2.3.2. Premier Insulation will meet these requirements. 
  • Clause E3 INTERNAL MOISTURE: Performance E3.3.1. Premier Insulation contributes to meeting this requirement
  • Clause F2 HAZARDOUS BUILDING MATERIALS: Performance F2.3.1. Premier Insulation meets this requirement
  • Clause H1 ENERGY EFFICIENCY: Performance H1.3.1 (a) and H1.3.2 E. Premier Insulation contributes to meeting these requirements
Other Performance Attributes
  • 50 year durability warranty
  • BRANZ certified — see Appraisal 509
  • 90% recycled glass
  • Select options are Eco Choice Aotearoa Certified — see Data Sheet
BRANZ Appraised
BRANZ Appraised
Data Sheet: Premier Glasswool Insulation


BPIR Product Statement: Glasswool Insulation


BRANZ Appraisal 509: Premier Glasswool Insulation

509 [2019] amended 2021

Eco Choice Aotearoa Certificate


Installation: Premier Glasswool Insulation — Blanket & Segments
Premier Insulation New Build Brochure

Premier Insulation are a proud manufacturer of 100% polyester insulation and supplier of glasswool insulation.

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