ponding

  1. D

    32/1000 box profile steel sheet – fixing to ridges instead of valleys

    Your thoughts please Provided suitable packing and longer fixings are used, will fixings on the ridges of box profile sheet (instead of the recommended valleys) cause problems ? Reason for asking – I want a detached garage roof slope to be less than the recommended minimum for box profile...
  2. C

    Flat asphalt roof dips/ponding between each joist - Torch on Felt?

    Flat asphalt roof dips/ponding between each joist. Could I cover with Torch on Felt, or should I level the dips with some material so felting on level surface? The flat roof covering could be felt I will upload a pic asap. But same question applies.
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