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OK, so building the bathroom. Have 10cm joists, I was going to put in 5cm kingspan and 5cmrockwool on top. But having thoroughly swept up dust and removed rubble to reduce opportunity for moisture to accumulate, is rockwoll a sensible idea? All pipes and drainage will be below it, and plans is to have vinyl sheet, so only risk of water is from shower tray, toilet, basin - but, is it worth the risk? Have treated all the timber. But could just put 10cm kingspan in instead....
I have enought kingspan and rockwool for either option sitting in the loft, I think ...
I have enought kingspan and rockwool for either option sitting in the loft, I think ...