I'm mixing a new extension with the existing house. The old part of house is just a concrete slab no insulation. I need to build this height up by 25mm overlay boards for ufh to match the new extension.
Can I just put 25mm ufh overlay boards straight over the concrete, then lay a floating engineered oak floor on top. Will it stay warm or do I have to worry about heat loss? If so which overlay boards? Doing a very large area.
Can I just put 25mm ufh overlay boards straight over the concrete, then lay a floating engineered oak floor on top. Will it stay warm or do I have to worry about heat loss? If so which overlay boards? Doing a very large area.