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InteriorInterior
Mammoth Underfloor Insulation
Description

Mammoth underfloor insulation is made in New Zealand from 100% lofted, thermally bonded polyester fibres. Mammoth underfloor airlay sections are designed to provide thermal insulation for the underfloor by friction fitting between floor joists, hard up against the floorboards. Mammoth sections do not require mechanical fixings or staples to hold it in place.

  • Mammoth Underfloor Sections product range: R1.9, R2.8 and can be double layered if required to meet the new Building Code.
  • Mammoth Underfloor Blanket product range: R1.5 and R1.8.
Key Features
  • Mammoth underfloor airlay sections are friction fit and can be fit snug up against the floor. There is no need for staples, removing the danger of electrocution
  • Mammoth products contain recycled polyester fibres.
  • Mammoth underfloor blanket insulation uses up to 3,300 recycled plastic bottles per 100m²*
  • Mammoth underfloor section insulation uses up to 7,800 recycled plastic bottles per 100m²*
  • Mammoth polyester products are backed by a 50 year manufacturer's warranty
  • No precautions are required for handling Mammoth. It will not cause irritation when touched and it gives off no fumes or odours.
  • Mammoth products are chemical free — no formaldehyde or insecticides. Mammoth products are safe and easy to work with.
  • Mammoth Underfloor sections helps to reduce the noise of foot fall on floorboards and assists in creating a quieter internal environment.
  • Mammoth products are moisture resistant.
  • All Mammoth products are Red List Free — International Living Future Institute.
  • Manufactured by InZone Industries Ltd — a carboNZero certified organisation.
  • Mammoth products are made in a near zero waste production process and are fully recyclable.
  • Mammoth underfloor sections are Environmental Choice certified.

* Estimate based on 500ml plastic bottles (16.2g each).

Declare LBC Red List Free
Declare LBC Red List Free
Eco Choice Aotearoa (ECNZ) Licensed
Eco Choice Aotearoa
Homestar / Green Star (Envirospec) Compliant
Homestar / Green Star
Recycled Content (Pre-Consumer)
Pre-Consumer Recycled Content
NZ Made
NZ Made
NZ-Owned Business
NZ-Owned Business
Scope of Use
  • Mammoth underfloor sections are designed for homes with semi-enclosed underfloors
  • Mammoth underfloor blanket is designed for homes with fully enclosed underfloors
Statement of Building Code Compliance

In the opinion of BRANZ, Mammoth Insulation if designed, used, installed and maintained in accordance with the statements and conditions of this Appraisal, will meet or contribute to meeting the following provisions of the NZBC:

  • Clause B2 Durability: Performance B2.3.1(a) not less than 50 years and B2.3.1(b) 15 years. Mammoth Insulation will meet this requirement 
  • Clause E3 Internal Moisture: Performance E3.3.1. Mammoth Insulation will contribute to meeting this requirement. See Paragraphs 13.1 and 13.2
  • Clause F2 Hazardous Materials: Performance F2.3.1. Mammoth Insulation meets this requirement and will not present a health hazard to people
  • Clause H1 Energy Efficiency: Performance H1.3.1 (a) and H1.3.2 E. Mammoth Insulation will contribute to meeting these requirements. See Paragraphs 14.1 and 14.2.
Other Performance Attributes
  • Mammoth polyester products are backed by a 50 year manufacturer's warranty
  • Non-toxic and Non-irritant: OSH Health and Safety Guidelines for the Selection and Safe Handling of Synthetic Mineral Fibres. Department of Labour, 1194, P18.
  • Fire Test:
    • AS1530 Part 3 — Ignitability (0), Spread of Flame (0), Heat Evolved (0) and Smoke Developed (3)
    • AS/NZS 60695.2.11 — Glow wire Flammability test (passed)
    • AS/NZS 60695.11.5 — Needle-flame test (passed)
  • VOC Emission Test: Total VOC < 0.005mg/m3 (level below detection) and Formaldehyde; 0.009mg/m3 (level below detection)
  • Non Corrosive: AS/NZS4859.1 (Polyester has alkalinity of PH7.8)
  • Vermin Resistant: not a food source for vermin (and not treated)
BRANZ Appraised
BRANZ Appraised
Documents
Underfloor Blanket Data Sheet

2024

Underfloor Sections Data Sheet

2024

BRANZ Appraisal 802

No 802 [2020]

carboNZero certification

2020

Declare Mammoth

2015 - 2025

Environmental Choice License
NZ Green Building Council Membership

2023 - 2024

Airlay Sections Installation Guidelines

2024

Underfloor Blanket Installation Guidelines

2024

Underfloor Sections Installation Guidelines

2024

Mammoth Insulation Warranty

2022

Existing Home (Retro) Brochure

2022

New Build Brochure

2022

Mammoth Resource Centre

Mammoth Modern Insulation is part of InZone Industries Ltd, a carboNZero certified organisation that manufactures polyester insulation products for the building, construction, and residential markets.

Product Enquiries

News from Mammoth Insulation

Reducing Construction Waste with 100% Recyclable Mammoth Insulation
Mammoth Releases New Friction-Fit Underfloor Product
Waste to Warmth Quantified
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