Saturday 21st September 2013 / 1315
120 mm rockwool then 100 mm Kingspan on top to finish flush with the top of the joists. This will give an R value of about 7.1.
The story of my extension being built
Saturday 21st September 2013 / 1315
120 mm rockwool then 100 mm Kingspan on top to finish flush with the top of the joists. This will give an R value of about 7.1.