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Loft insulation with rigid material

Discussion in 'Floors, Stairs and Lofts' started by Aphobos, 30 Dec 2005.

  1. Aphobos

    Aphobos

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    30 Dec 2005
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    The ceiling of the top floor of our house is made with wooden beams about 50cm apart and tongue and grooved timber nailed on top. This gives a flat floor in the loft, (the rafters are underneath) but there is no insulation at all.
    I want to lay rigid insulation material directly on top of the loft floor; 2 layers, done in a way so that the joints between each sheet of the bottom layer is covered by the top layer. I will seal with some sort of foam, around the edge of floor/ceiling as at the moment you can see daylight from downstairs.
    Should I cover this insulation with any sort of plywood material ? Has anybody used a similar method or been in a similar situation?
     
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