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  1. M

    How do we span this door threshold cavity.?

    Thanks for that .. to do mean 5 sided pocket ? ie - base and 4 sides? Sould we fill with insulation plus cement - or just cement? - How thick? Sorry for the ignorance!
  2. M

    How do we span this door threshold cavity.?

    Our attempts to replace few cracked tiles by the back door has uncovered a can of worms. The cavity wall had been filled to surface by insulating material overlain by a layer of mortar - now removed leaving us with a hole ! Should we fill it with insulation? It has been suggested that we span...
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