Inspector
Nyuck, Nyuck, Nyuck!
If the roof is in good condition let me suggest spray foam.
Pete
Pete
Thanks very much for the detailed help. I think I have an idea of what I want to do now but may post you a message explaining a bit more to see if I’m understanding you correctly.Upgrading single skin metal roofs seems to be a a fairly common subject on this forum. My day job is as a technical engineer for metal roof and wall cladding. It is difficult to give advice without seeing exactly what a building is like, but from your i,mages it looks like the interior is in good condition and teh structural timbers are fairly substantial.
I would not recommend spray foam for numerous reasons but it is fairly popular on the other side of the pond, nor would I enclose the timber beams as you would not be able to see any rot developing.
You could strip off the xisting sheeting and replace with OSB but you are adding cost and work. (OSB will give slightly better sound absorption due to increased mass.
The spacer bracket and bar system I recommended in my earlier post is to hold a cavity to take the insulation quillt. Glass wool is much easier to handle than rock wool due to the longer fibre length (more of an issue on walls.
See the 2 links below for some details. Any questions, drop me pm and I will get back to you
Ian
https://www.google.com/search?sourc...AhUJV8AKHd1vAAwQjJkEegQIBhAB&biw=1680&bih=907https://www.google.com/search?sourc...AhUJV8AKHd1vAAwQjJkEegQIBhAB&biw=1680&bih=907
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