Kingspan with the silver side up, to the warm side.
Yes spillages would be very occassional so they would dry up (unless there was a sink nearby)
But I do think that kingspan wouldnt seal all the gaps at the joists and air currents/ draughts would find ways from the room downwards and as they pass the joists would condense water and this would happen day after day and rot the wood.
[g]
You seal the Kingspan/Celotex in with squirty foam. Ideally the low- expansion waterproof stuff that's used for doors and windows.
Regards Richard
Sorry - meant the joists. Timber gets very much more expensive in long lengths.
16 ft..i think my 12 " square green oaks 6m long were a couple of hundred each.
VERY rough sawn.
Probably double that for seasoned wood, but you wouldn't get 12" sq seasoned..it would split.
Work on 40-50 per cu ft rough cut and seasioned.
geraldthehamster coughed up some electrons that declared:
I found Siroflex foam adhesive (branded as drywall glue) quite good. Still PU foam, but only 2x expansion and very sticky! Still have the T-shirts to prove it!
HomeOwnersHub website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.