To assist you we've developed the easy step guide, follow it and you can't go wrong. Don't forget to pick up your Expol Underfloor Easy Measure Ruler (shown below). Use it to measure the underfloor joist sizes, so you can purchase the correct panels for your DIY Insulation project.


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Step 1Step 2
Installation Step 1

Measure several joists using the Easy Measure Ruler.

Installation Step 2

Slice the panel if necessary, panel should be approximately 5mm oversize to ensure a firm fit.

Step 3Step 4
Installation Step 3

Slide the panel between the joists, push up to ensure no air gaps.

Installation Step 4

Fix two Expol fittings on opposite corners of each panel.


Step 5Step 6
Installation Step 5

Place Expol Wireguard around any cables that come in direct contact with Expol.

Installation Step 6

For obstacles such as pipes and plumbing cut the panel leaving 100mm clearance future maintenance.