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    Poor quality concrete used for floor please suggest if it need replacing

    We have concrete floor poured its more than 6-7 inch think. Unfortunately it appears that the concrete is of poor quality. The concrete colour is cream/white and appears that aggregate could be cheap recycled. After four weeks we could scratch into concrete with metal pipe. Where no stone...
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    DPC level in all rooms not at same level would it cause any damp issue or problem for underfloor heating

    Hi, We are building an extension and as a part of it we are replacing floor concrete in whole house. There is mismatch in DPC level in rooms. In one room it is 60mm above floor insulation level compared to other rooms. Screed will be added on the top of the insulation. That means in some area...
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    Would masonry cavity wall need anchoring on RSJs

    I am planning to modify the layout of the ground floor while extending a detached house. All four side walls of the ground floor will be removed, and the external walls of the first floor will be supported by RSJs (Rolled Steel Joists). Since all four first-floor walls are supported by RSJs...
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