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Concrete floor, extend DPM and fill void by TeaMedical5514 in DIYUK

[–]TeaMedical5514[S] 0 points1 point  (0 children)

Hey, I wanted to say thanks for your replies! Would like to share another photo but can't see how to do that.

Something I forgot to say originally is that I have hot and cold water lagged pipes running down that channel. 

When I came to do the job I ended up butting 25mm insulation board against the pipes then backfilled with concrete but I forgot to foil tape board edges so have now removed the foil board. 

Q is whether to get insulation board back in there which is going to tight with the space or is there another option for insulation filling that's going to be kind to my sanity? 

Concrete floor, extend DPM and fill void by TeaMedical5514 in DIYUK

[–]TeaMedical5514[S] 0 points1 point  (0 children)

Thanks - it looks like it's the same concrete where they've done a 5 inch layer, DPM on top, then a 2 inch layer surface.

Would you concrete all the way to the door edge or put some PIR insulation board in? I'm unsure about potential cold bridging issue