hi, I’m looking to insulate my outhouse which currently has none, just one brick walls. It’s fairly small (180cm x 260). The roof is corrugated iron sheets with just a centre rafter and is dripping with condensation. I’ve been advised to replace the roof entirely rather than trying to insulate the corrugated iron. Can anyone advise what the best options available are for a slight gradient one sided roof. Can I add a frame to be existing 3 rafters? What layers do I need to add e.g, plywood, gap , membrane, pir board etc. Confused by the amount of options out there. Attached are pics of the roof in question.
Replacing a corrugated iron roof on an outhouse
- Thread starter Matto80
- Start date
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Using the existing purlins, add some 100mm x 50mm rafters (400mm c/c) on top then fix ply bonded insulation sheets and felt it like a flat roof. It may involve some building up of the sides and/or deep fascia detail.
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