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    Roof design & construction

    I am building a 2 storey shed with office over (but possible future accomodation potential). The roof will be covered in artificial slate onto raised collar trusses. The raised collars will become the office ceiling and are 1m above wall plate level. My plan at this stage was to keep it all...
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    Cavity closer with/out DPC

    I have recently built a cavity wall as part of a shed/office wall (no building regs). It has 4" dense block outer and 4" aircrete block inner and I closed the top of the cavity at the eaves with blocks on their sides. They rest on the outer leaf and butt the side of the inner leaf. I forgot to...
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    Roof Truss Fixing Query

    I am building a 2 storey 10x5m agricultural shed with general purpose storage room/office over. It is built with 100mm concrete blocks (dense outer/Durox inner) with 100mm empty cavity (3 sides) and 150mm Durox/wood clad on other. I have a question relating to eaves details and roof design...
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    Bonding cavity wall to solid wall

    I am constructing a 10m x 5m building with 3 sides at ground floor level (open as 2 bays on one long face for parking access) and a room above with 2 UB's to support a wall over the open side. The 3 sides at ground floor are 4" dense blocks for inner and outer leaves with a 4" cavity. At first...
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    Connecting upstairs soil pipe into downstairs Gully Trap ?

    I am planning to install a new upstairs toilet which will discharge into an existing waste pipe downstairs. I believe the existing pipe starts with a ceramic gully trap and was wondering if I could connect straight into this, or if this is just asking for blockages (I would obviously include an...
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    Retaining wall

    Hi, I am in the process of building a 2-storey 10m x 5m concrete block shed. The 10m long back wall will retain 1.2m of solid ground. I am building with 100mm thick concrete blocks (dense) with a 100mm cavity and plan to fill the retaining section with concrete (has reinforcing fabric tied to...
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