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Hello! I would like to fix my roof wall plate on an extension I am building to the external cavity of my blockwork wall rather than the internal. Both skins are blockwork with the inner using 3.5N/mm2 blocks and the outer 7N/mm2. The reason I'd like to do this is that I am reroofing my...

Hi! We are re-roofing our house shortly and are a little confused about the size of the ridge board required. We are going for a warm roof construction with the insulation all on top of the joists therefore do not know whether the ridge board needs to extend for the height of the joists...

Hello! I am looking to install a recessed electricity meter box in my new extension but I'm not sure if the rules for the location of "openings" in cavity walls in the building regulations apply. The wall is a standard cavity wall construction so the meter box would only be recessed in the...