Hi, I would like to ask about what would be a good way to insulate the loft. The loft is not heated and you can feel the air coming into the loft through gaps between tiles as visible on the photos. I was thinking of puting the thermal foil on that but heard that there might be a lot of condensation there which I would like to avoid. What would you recommend for roof like that? How could I insulate it and avoid condensation without much hassle and changing tiles etc?
I would be inclined to add to the insulation you have, and make sure you insulate any loft hatches too, but leave the slates and rafters alone.
You could staple or otherwise affix thermal foil, or an insulation product like Airtec double, to the rafters. There will be more than enough moving air to prevent condensation I think.
Dont block up the air coming in from the gaps. Roof needs good ventilation. As above, double up on insulation.
If fitting PIR insulation, minimum 50mm air gap is required, so as long as there's a 50mm gap it shouldn't be a problem.
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