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  1. K

    Calculation of joist requirements for upstairs room

    I wonder if anyone can help me. I have a bungalow that has an original upstairs room with dormer window. I want to move the wall hangers back about a two feet further into the eave space to create a larger space that I can then sub-divide. However, a structural engineer has said that my existing...
  2. K

    Lockshield Valve

    Can anyone tell me what a lockshield valve is, what it does, why it's necessary? do all radiators have one fitted?
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