M
Monkeybusiness
Well-known member
I only insulated the roof to prevent condensation - it still gets a bit after a really cold spell but nothing that bothers me.Given that I do heat loss calculations on a near daily basis I need to sit down and work out the cost benefit ratio of 40mm vs 100mm PIR sheets. I really want to do it as I will only get one chance at the roof. Walls can be done later / Adhoc / second hand / etc easy enough.