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Should I add extra insulation whilst repairing flat roof?
southerly
Posts: 181 Forumite
I am recovering a flat roof and also had to replace about 1/3 of the chipboard sheets with OSB3. Is is worth buying some extra insulation and adding it in these areas, as I have not nailed the sheets down yet. There is already insulation there about 3" thick, but there would be room for a lot more as the joists are deep. Is there supposed to be any air gap left?
It is a very cold room as it faces north, and has 2 huge windows which would also lose lots of heat, and the walls are only one concrete block thick (no cavity).
I could even pull up the sound sheeting and add insulation to all the areas, even if this damaged the sheeting and I had to buy more OSB3, as from a builders merchant it is only £16 per 8x4 sheet.
It is a very cold room as it faces north, and has 2 huge windows which would also lose lots of heat, and the walls are only one concrete block thick (no cavity).
I could even pull up the sound sheeting and add insulation to all the areas, even if this damaged the sheeting and I had to buy more OSB3, as from a builders merchant it is only £16 per 8x4 sheet.
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Comments
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Any increased insulation has got to be a good thing but make sure there Iis an air gap through.Eat vegetables and fear no creditors, rather than eat duck and hide.0
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How much air gap?0
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