Currently upstairs is completely open I.e. I can see the felt in the roof (And can feel the breeze coming through it). We have spray foam from wall plate to purline and metac on the slopes up to the ceiling and nothing beyond. We don't have an airtight house so what would you advise to keep the cold air out? Would loftwool be enough above the ceiling? Should I use airtight membrane for the sole purpose of keeping the cold out? Also can anyone advise where to buy insulation that doesn't cost the earth.
Thanks in advance!
Thanks in advance!