Steel frame garden room with no lintel in order to achieve particular aesthetic

[Notch7]

What's wrong if the cladding is fixed just to the osb(ply you were referring to). Will it not be secure enough. Because I was planning to have the pir fixed to the steel frame, then the osb just fixed to the pir (not all the way through into the steel), then the cladding fixed onto the battens that will be fixed onto the osb(not all the way through the pir and into the steel). Will this not be secure enough/what problems could it lead to?

Also do you think the building will have good acoustic insulation with just insulating with pir Outside the frame? As it is light guage steel after all and is hollow unlike timber.

Also how would you recommend fixing a big set of aluminium sliding doors to the frame at the opening?

for a warm roof, look at a glued system for attaching the insulation and deck - it avoids all thermal bridging through the fixings and solves your issue of long fixings into steel.

Are you American by the way - we don’t have termites in the UK

 

[Ps67]

Not if you do it like this...


You can not fix into PIR.

What is the correct wall build up here? With trying to insulate on the outside of the frame?