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pryally-
We've had the rooflight added, but everything else was as it was when we bought the house.
Surveyor reckoned the kitchen in its current form dates from the 90s sometime, but where was always some kind of structure sitting here (as the loo used to be against the back wall).Not in a conservation area nor a listed building fortunately.
hvsds
Insulation question:
Kitchen has a hipped roof (slate), and the rafters are only 75mm deep.
Will I need to build out (in?) off these rafters to give a load more room for air gap and heftier thickness of PIR board - assuming 120mm?
Can’t tell if this is a mandatory building regs thing, or just what they prefer to see (and could I get away with 60mm PIR and 15mm between that and the membrane under the batons).
Previously had a suspended ceiling and zero insultation at all.