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    Correct order for insulating new build

    Hi, I've bought a half finished new build with bare concrete floors and hollow clay brick walls and am planning the insulation. A wet underfloor heating system will be installed, but should this be done before or after the wall insulation and PB is in place? If it makes any difference, I'll...
  2. D

    Permeability of hardcore

    Hi, I'm planning a gravel driveway and am unsure about the drainage requirements. The land has exceptionally good natural drainage thanks to very sandy soil and being located on the crest of valley. As a result there's no need for a soak-away as long as the water can get to the soil. If I...
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