60mm is finei want to dab said boards on all (inside) external walls to hopefully keep the bungalow warm.which is best thickness board to use,thanx guys
thanx elite,much appreciated60mm is fine
why is that john? was looking at the kingspan kooltherm k118,or celotex equivalentUse the yellow backed stuff not pink
Better then the pink stuffwhy is that john? was looking at the kingspan kooltherm k118,or celotex equivalent