Hi,
I am going to raise the joists for my parents, they are going to get 270mm insulation under the warm front grant. There is already 70mm of insulation there leaving 200mm to be fitted ontop.
I am trying to plan the best way to use the joists
Is the following viable?
http://i115.photobucket.com/albums/n305/bluelou/insulation.gif
Or would it be better if the 150mm (2"x6") was two 75mm beams perpendicular to eachother?
I am going to raise the joists for my parents, they are going to get 270mm insulation under the warm front grant. There is already 70mm of insulation there leaving 200mm to be fitted ontop.
I am trying to plan the best way to use the joists
Is the following viable?
http://i115.photobucket.com/albums/n305/bluelou/insulation.gif
Or would it be better if the 150mm (2"x6") was two 75mm beams perpendicular to eachother?
