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    flat warmroof insulation position question

    Hi guys ive built my extension to roof level which will be a flat warm roof design. 100mm brick outer leaf, 100mm cavity drithetm 32 full filled, 100mm aerated block internal leaf. Joists rest on 100mm internal wall leaf and innerleaf blockwork continues between joists and above. External...
  2. R

    Flat roof midspan support question

    Hi guys im after some advice regards a small extension flat roof build I am currently diying. The extension is a 2.5m x 2.6/3.7 addition to an existing flat roof extension wnich will give us a much larger single storey extension to rear of house. Its an odd shape due to an underground...
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