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    Roof insulation thickness / venting

    Hi, just about to fit velux, insulate pitched roof in picture. Being closed boarded and the fact that i removed rock wool that was completely filling the voids can i use 100mm celotex or 75mm and leave 25mm gap or 50mm and leave 50mm air flow gap?. Obviously with the later choices could also...
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    Aqualisa Colt Concealed shower leaking from valve control

    Hi, just installed aqualisa colt consealed shower COLT001CA and the control unit on the wall constantly weeps water. Its brand new so hard to believe its the O ring on the cartridge. To me it looks like the seal between the cartridge and housing plate isn't sufficient enough. The large rubber...
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    Chimney wall in loft has white furry fungi and beams wet

    Wonder if anyone can help, im in an end terrace 1930s house, I have only one brick wall in the loft that is the chimney wall. The rafter and beams next to the wall are wet and there seems to be a white Fungal growth on the wall and where the beams meet the wall. The fungi or mould is like candy...
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