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My sheet steel roof at an incline of 10% consists of 2'x15's and was installed directly on rolled roofing with no air gaps other than the small grooves in the steel. The cathedral ceiling consists of 2x4 roof joists at 16" centres filled with paper backed fibreglass.This was strapped and 12" ceiling tiles were stapled. The ceiling tiles are discolored within a couple of feet of the peak primarily in the southwest room. I'm thinking during the winter thaw this room gets warm on sunny days and the snow on the roof causes condensation which discolors the tiles.
Has anyone had a similar experience?
Should I remove the steel roof, strap it and reapply it?
 

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oldbillybob said:
My sheet steel roof at an incline of 10% consists of 2'x15's and was installed directly on rolled roofing with no air gaps other than the small grooves in the steel. The cathedral ceiling consists of 2x4 roof joists at 16" centres filled with paper backed fibreglass.This was strapped and 12" ceiling tiles were stapled. The ceiling tiles are discolored within a couple of feet of the peak primarily in the southwest room. I'm thinking during the winter thaw this room gets warm on sunny days and the snow on the roof causes condensation which discolors the tiles.
Has anyone had a similar experience?
Should I remove the steel roof, strap it and reapply it?
Need pics, should have vented ridge with double bubble foil.
 

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Discussion Starter #3
Thanks for your response. I have no pics as I won't be at the cottage for at least a week.
I didn't think you would need a vented ridge vent if you had no attic. (at present we have a closed ridge with foam strips running horizontally between the ridge and the steel roof) Are you thinking it would be beneficial to leave the steel sheets unstrapped and install a vented ridge to vent the small grooves in the steel sheets?
Are you also suggesting I remove the paper backed fibreglass and install double bubble foil between the roof joists?
Thanks again
 
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