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DIY Mammoth Home Insulation

Installing Mammoth Insulation yourself

Non-irritant and long-lasting, Mammoth polyester insulation is ideal for DIY.

DIY Mammoth Home Insulation


Mammoth™ is easy and safe to install yourself.

Mammoth polyester insulation is a great option for DIY insulation installers since the product is non-toxic and non-irritant. Unlike traditional insulation, you do not need protective clothing, gloves and face masks to handle Mammoth insulation.

We recommend you watch this short installation video to gain an overview of how to install Mammoth polyester insulation.

  1. Choose the right product type for the area you want to insulate. View our Product Range for the ceiling, wall and underfloor options. If you need further technical information, click here to view the Mammoth Product datasheets.
  2. Select the appropriate product R-value for your climate zone.
  3. Measure the joist widths to accurately order the correct sized wall and underfloor products. It pays to check all joist spacings as many homes have varying joist widths. Below is a table to help you select the correct size.
  4. Calculate the number of square metres you require for each area you wish to insulate.
  5. Carefully read the installation instructions. Every product pack comes with the installation and fitting instructions. Alternatively, you can download them using the links below. Getting it right matters, so please ensure you carefully read the instructions as they outline all recommended tools, cutting instructions, clearances and any hazards you may come across.

Diy Table

Ceiling Insulation Blanket



100% Polyester Insulation to reduce heat loss through ceilings during winter or heat gain in summer.

Underfloor Insulation Sections



Long-lasting thermal insulation to improve the performance of external walls

Whangarei Boys High



Even amateur students install Airlay Wall Sections well.