T Tommy-Lee Staples Joined 3 Feb 2016 Messages 12 Reaction score 2 Country 14 Feb 2023 #16 tony1851 said: I know you've now (sensibly) discounted I-joists, but how would they have been more 'energy efficient'? Click to expand...
tony1851 said: I know you've now (sensibly) discounted I-joists, but how would they have been more 'energy efficient'? Click to expand...
