magnayn Posted May 18 Share Posted May 18 We have a 1930s house, and we've just decided to rip the floor up in the living room, so am looking to install UFH, as we've done this elsewhere to good effect. The house is built on a concrete raft. The void from subfloor to FFL is ~433mm. Allowing ~20mm for a wood floor, and 50mm for a flowed screed, that's a void of about 360mm to fill. Room size is roughly 6m x 4m. I could obviously just fill it with PIR boards though it's an inconvenient depth. There doesn't seem to be much savings using EPS (And I wonder about compression) - are there any other options I'm missing? Don't really feel like mucking about with rubble and concrete.. Link to comment Share on other sites More sharing options...
Conor Posted May 18 Share Posted May 18 Foam glass would be a popular option in this scenario. Link to comment Share on other sites More sharing options...
Iceverge Posted May 18 Share Posted May 18 300mm of EPS 70 or seconds PIR followed by 100mm concrete, You should be able to get it together for about £40/M2 for that depth. Link to comment Share on other sites More sharing options...
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