Thermal Insulation

Thermal Insulation Board

Our thermal insulation board is ideal for insulating your floor and boosting the warm-up time and efficiency of your heating system. The product is suitable for use beneath any of our underfloor heating systems and the boards can pay for themselves, through reduced heating bills, in as little as 3 years when used on un-insulated bases.

– Insulation boards increase the efficiency of all GS UFH systems
– Available in various thicknesses from 6mm to 50mm to suit your requirements
– 10mm boards offer a good trade off between insulation value and build height
– Reduce your carbon footprint and your fuel bills
– Made in the UK minimising transport miles
– Completely waterproof, they will not warp, swell or decay
– Significant soundproofing qualities

Board Sizes



U Value
6.0 1.95 4.50
10.0 2.22 2.70
12.5 2.28 2.16
20.0 2.48 1.35
30.0 2.47 0.90
40.0 3.00 0.67
50.0 3.26 0.54

 10mm and 20mm kept in stock.