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    Confused - How much insulation do I really need?

    I’m planning to rebuild 3x3m conservatory from scratch, with brick on the outside, 50mm cavity and Thermalite Turbo blocks (100mm) on the inside. Left wall has no openings (fully bricked up), centre wall will have a big window and the right wall will have a big patio door (taking half the width...
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    Installing a large 220cm x 140cm window

    I have a 3m x 3m conservatory which will be knocked down and rebuilt from scratch with a new large UPVC or Aluminium window W=220cm H=140cm. I plan to buy a polycarbonate 25mm roof for the structure. My question is: Is 20cm of brickwork on top of the window enough to hold such a large...
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