This is for a single storey extension which has a pitched roof with trusses at 4000cts.
So it will require 100mm between the bottom chords and 200mm on top of them.
The height of the loft space will be approx 1.5m with Queen post trusses. When 200mm is subtracted from 1500mm the effective height is 1300mm. So not very high.
I need loft insulation on top of the plasterboard. 52 m sq.
Knauf loft roll 44 and Rockwool are two main products.
The Knauf seems to be cheaper by some margin than Rockwool which does not seem to be so widely stocked as the Knauf.
Is there any particular difference between the two to merit the difference?
Are there any other products worth considering?
So it will require 100mm between the bottom chords and 200mm on top of them.
The height of the loft space will be approx 1.5m with Queen post trusses. When 200mm is subtracted from 1500mm the effective height is 1300mm. So not very high.
I need loft insulation on top of the plasterboard. 52 m sq.
Knauf loft roll 44 and Rockwool are two main products.
The Knauf seems to be cheaper by some margin than Rockwool which does not seem to be so widely stocked as the Knauf.
Is there any particular difference between the two to merit the difference?
Are there any other products worth considering?