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  1. W

    Tile vents

    That's helpful, sure but it'd be nice if anyone's got a clue if I can turn a concrete tile into a vent directly, maybe with a Stihl saw? But how to stop rain getting in too?
  2. W

    Tile vents

    I read somewhere that tile vents could be made out of ordinary cement tiles. Anyone know how? My roof is in marley major tiles and I'd prefer not to have to use a plastic tile vent with a box sitting up looking fairly ugly. The ones with the drain boxes below will be a pain to fit, cutting...
  3. W

    Pavatherm

    This seems to have the following advantages 1 good u value 2 no toxicity associated with it 3 holds moisyure, very permeable to it, so helping to maintain aconstant humidity inside, that is avoiding large fluctuatuions. 4 high thermal density, ie delaying heat loss for a considerable time...
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