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  1. J

    Skimming over intumescent sealant joints?

    Hi, I'm doing a loft conversion, and have just put the pink fireline plasterboard across my new 1st floor ceiling. Building control are asking for intumescent mastic in any gaps between boards. There's quite a lot of gaps, typically up to about 7mm wide, both in the plane of the ceiling and...
  2. J

    Identifying unusual bricks / blocks (12" x 9" x ?")

    Hi, The gable end of my 1930/40s brick house has these strange bricks/blocks (picture attached) on the inner leaf. They seem to be made of clay like conventional bricks. I have been googling images but find nothing comparable. Does anyone know what they are called so that I can research them...
  3. J

    Unvented T&P relief valve on buffer store

    Hi, I'm planning to install a thermal buffer store (to prevent my combi cycling) as part of my UFH on a building control ticket. I'm a professional engineer, and feel competent to install it safely. However, I am unclear about part of the G3 requirements (so competency not quite there, but...
  4. J

    Have you used mineral wool as a floating floor resilient layer?

    Hi, I'm a new member here, but have been floating in the background for quite a while now. I'm putting acoustic insulation and UFH into the floor of my first floor flat. I'm planning an approach inspired by an (acoustic) detail mentioned in building regulations document E, 3.102, which...
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