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Hi, I'm laying PIR insulation boards on my slab in preparation to clip underfloor heating pipes to it. The problem I have is that I have had to cut the boards around my water feed pipes running across the room, so I have channels which I need to fill to prevent the screed cracking when it's...

I need to lay a screed floor over Xtratherm PIR insulation and UFH and am wondering what perimeter upstand to use. Building control has requested 30mm PIR - will this deal with thermal expansion of the screed or do I need to use an additional expansion foam strip?

Hi, I'm installing wet under floor heating to a first floor bathroom but have a problem with floor levels. The top of the joists are 100mm below the adjacent floor levels - ie the bathroom floor joists are 100mm below the level of the hallway. My first thought is to screw ply (22mm?) onto the...

Hi there, newbie here with a few questions about tiling a 15 sq metres of wall & floor surfaces with 300x300x10mm porcelain tiles - not being one to make life easy for myself :) The wall is plastered brick in good condition and painted with emulsion - will the paint need to be removed? I'm...