Hello everyone. I've got a cold flat roof which is closed on all four sides. It's on a garage/storeroom and is used as a non habitable room. Last year it was leaking, so I had it re-felted. It has a number of skylights, so a new warm roof wasn't possible. The question is - now I'm ready to re-board the ceiling I was wondering if I could insulated between the joists. The roof has loads of full height noggins, so is really a number of small unvented rectangular spaces. The depth of joists varies and is between 160-180mm. My plan is to board the ceiling with 50mm insulated plasterboard (with foil barrier included on it) and leave the roof space empty.
I was wondering - Could I push up a load of mineral wool to completely fill all of the voids, so there is no air space and then board over?
Ideally I'd like the room to last 5-10 years max, as I will get an extension once my finances allow. Until then, it's a useful storage room and has a fridge and freezer in it. Just want to get the chill off it. Mineral wool is cheap and seems something that might help. Any opinions or should I just leave the space empty and overboard, as originally planned?
Thanks
I was wondering - Could I push up a load of mineral wool to completely fill all of the voids, so there is no air space and then board over?
Ideally I'd like the room to last 5-10 years max, as I will get an extension once my finances allow. Until then, it's a useful storage room and has a fridge and freezer in it. Just want to get the chill off it. Mineral wool is cheap and seems something that might help. Any opinions or should I just leave the space empty and overboard, as originally planned?
Thanks