02-03-2020, 07:02 PM
Hi,
I have the same material on my garage roof, galv steel Z purlins ( Lighter and stiffer than timber beams on a 5m span )
Sheeted over with OSB then the steel roof on top, I can quite happily walk around on top of it.
It came from the local industrial building company.
I do get condensation in cold weather from the GRP skylights though.
I have the same material on my garage roof, galv steel Z purlins ( Lighter and stiffer than timber beams on a 5m span )
Sheeted over with OSB then the steel roof on top, I can quite happily walk around on top of it.
It came from the local industrial building company.
I do get condensation in cold weather from the GRP skylights though.