Underfloor Insulation (Flexifit) Installation Guide
Simple step by step guide to installing Foilboard® Green Rigid Underfloor Insulation (Flexifit)
Step 1
Measure the distance between joists (from inside edge to inside edge) and cut Foilboard® to suit the required width.
Step 2
Place Foilboard® Flexifast® clips at 600mm centres along the Foilboard® panels edge.
Step 3
Slide the Foilboard® GREEN rigid panel between the joist to the desired depth. (Foilboard® can be installed with either the silver face or green face exposed).
Step 4
Use a screw or nail to fix the Flexifast® clip to the sides of the joists.
Step 5
Use either Foilboard® Green tape or Silver tape to seal all butt joins between the panels and any other minor gaps.
Required to install
Foilboard® Flexifast clip
Foilboard® Green OR Silver insulation joining tape
Retractable Blade / Knife
Foilboard ® Tips
- Imbedding the spikes of the Flexifast® clip into the FR-EPS core foam secures the panel in position, ensuring quick and easy installation of the panel
- To minimise wastage, cut across the width of the panel (making each cut panel 1200mm long)
- You can use a neutral cure silicon to seal any minor gaps
- When marking out the panel, round up the measurement by 1- 2mm, this will ensure a snug fit and allow for any slight variation in the joists
Designing a Building?
Installing Insulation?
