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  1. J

    Cavity walls

    I have always been suspicious of cavity wall insulating material inserted after construction. Particularly the plastic foam (?) injected material. It strikes me that after a period of time it will settle and compress under its own weight, dust will then settle on this in turn, and a bridge...
  2. J

    What's the point of a gutter based roof valley?

    Guttering should be peripheral to a roof not plumb in the centre. Guttering leaks ( have you seen the amount of work and cost required to replace it? ) Overflows and more than anything else breaks the continuity of the roofing felt. Most houses with plain tiles have after a period of time...
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