Should i fill this void with rockwool insulation or insulation board? (this is the front of the roof and the back of the facia board), I am putting in 150mm board insulation in between the rafters but don't think it will be easy to to slide down. its a non vented roof as I have a breathable membrane.
Also when I fit the first layer of insulation do I staple on my VCL over the rafters and then fit my second layer of insulation board over that or does it get stapled to the battens and then Plasterboard, Thanks
Also when I fit the first layer of insulation do I staple on my VCL over the rafters and then fit my second layer of insulation board over that or does it get stapled to the battens and then Plasterboard, Thanks