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Rafter insulation

steve241277 · 2021-11-05 21:27:51

I have 150mm rafters to insulate and already have foil insulation stapled up to them. I was going to pull this down and staple back up after. Can I full fill the rafter and staple the foil back up touching the rafter roll? Thinking of condensation. To slab underneath do i need a batten - I am tight for space

05-11-2021 9:27pm

#1

steve241277

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I have 150mm rafters to insulate and already have foil insulation stapled up to them. I was going to pull this down and staple back up after. Can I full fill the rafter and staple the foil back up touching the rafter roll? Thinking of condensation. To slab underneath do i need a batten - I am tight for space

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#2 09-11-2021 9:24am

jack of all

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It's more complicated than you think and the risk of failure is great if you don't consider air tightness, insulation and roof ventilation.

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