Minimum height of insulation build up on concrete slab
I'm new here and loving the knowledge of users.
Were looking at converting a portal barn that already has PP. It has an offset ridge and so one roof slope cones down quite low at the eaves. We want to retain the existing concrete slab and insulate over it but want to find the thinnest material build up that will still meet regs for U values.
So our bottom layer is 100-150 slab and top will be 65mm screed with UF heating. What can we put between these two?
Thanks
My wife is the same. I go to the shops and open her text for the shopping list and just stand there asking myself WTF half the things are on the list. When she calls out what they are, it's spelt how she thinks the words sound. Then I say "oh, yea".
