Underfloor Insulation (Retrofit) Installation Guide

Underfloor Insulation

Simple step by step guide to installing Foilboard® Green Rigid Underfloor Insulation (Retrofit)

Step 1

Install the Foilboard® GREEN panel against the bearer (Below joists)

Step 2

Fix the panel using 3 Foilboard® Fasteners per joist in between bearers.

Step 3

Use full sheets of Foilboard® GREEN panel in the areas that they fit. Then measuring and cutting the smaller areas.

Step 4

Join sheets together and continue along underfloor cutting around any services as required.

Step 5

Use either Foilboard® GREEN or aluminium tape to seal the butt joins between the panels and any other minor gaps.

Handling and Storage

Underfloor Insulation

Instructions are merely a guideline only and should be interpreted with consideration for the specific building application. All penetrations must be effectively sealed to reduce any risk of damage caused by exposure to extreme radiant heat. Alternative installation methods may be implemented. Safe installation practices are encouraged at all times. Please contact Foilboard Australia Pty Ltd for further information.

It is recommend that if the product is being stored for extended periods it should be kept clean and dry. Any moisture present between sheets should be dried to prevent potential oxidization and must not be stored with either foil surface in contact with any alkaline materials.

Required to install

Use Foilboard® Standard Fasteners for Foilboard® GREEN 10 & GREEN 15 OR

Use Foilboard® Ultra Fasteners for Foilboard® GREEN 20 & GREEN 25

Foilboard® Green joining or Silver joining tape

In need of further technical advice or assistance?

Foilboard® Technical Department is available to assist

Designing a Building?

Designing a Building?

Doing it yourself?

Doing it yourself?