Hi
Did do some trawling through the forums and all I could find was answers to flat roof insulation or pitched roof insulation but in the rafters.
My question is on a pitched roof but insulation in the joists. I’m looking at using PIR as I’ll be using a lot of that already (converting a garage). I’ve already put some tile vents in and will get a vented soffit so ventilation is covered. However, I’m struggling to find out what the minimum requirement is for PIR insulation in a roof. It always seems to be about rafters. I’m assuming it’s not different but just trying to tot up what I need to order
Thanks
Did do some trawling through the forums and all I could find was answers to flat roof insulation or pitched roof insulation but in the rafters.
My question is on a pitched roof but insulation in the joists. I’m looking at using PIR as I’ll be using a lot of that already (converting a garage). I’ve already put some tile vents in and will get a vented soffit so ventilation is covered. However, I’m struggling to find out what the minimum requirement is for PIR insulation in a roof. It always seems to be about rafters. I’m assuming it’s not different but just trying to tot up what I need to order
Thanks