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    insulation in ceiling / floor over a garage

    hello there is a new room over the garage in the extension. plans show this as having 100mm kingspan in the ceiling/floor. this is a room over a cold space below. its got 225mm floor joists and one inspector said i could put 200mm insulation quilt / rockwool style insulation in instead...
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    Insulation and warm roof

    hello i have 100mm full fill cavity bats in the walls of a new extension. the roof is a shallow pitched roof. the insulation in the roof is going to be a warm roof design of profiled tiles, breathable membrane, 50mm air gap (i know only 25 is needed), 75mm kingspan between rafters, 50mm...
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    Vapour controll layer / barrier

    Hi In my extension i have a pitched roof with a flat horizontal bit at the top. I wanted to keep as much height as possible. The kingspan is 75mm between rafters and 50mm under. This runs right upto the UB ridge beam and the beam protrudes down, to white 4x2's are fixed touching it...
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