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  1. M

    Cold roof ventilation

    Hi, Do my rafters need more ventilation? I'm redoing the existing loft conversion in my house where the original rafters sit on wall plates. I'm planning on doubling up the rafters for depth, and insulating between the new rafters, then insulation backed plasterboard on top. Will they get...
  2. M

    Can I remove loft stud wall?

    Hi, I was expecting to be able to just rip out the stud work, but it looks pretty original i.e. 1890s. The 3x2 inch rafters sit on upper and lower 7x2 inch purlins for each pitch, where the purlins sit in the brick walls, so I'm hoping they're not structural. Floor approx 8x4 metres. Think...
  3. M

    1st floor fire regs

    Hi, I'm hoping to make the ground floor of our terrace open plan (sprinkler/mist system and open stairs covered elsewhere), but want to check requirements for 1st floor. I understand all habitable rooms need a fire door, but does the stairs to the habitable loft room need one as well? I don't...
  4. M

    Mist or sprinkler systems

    Hi, Looking for some quotes for a mist or sprinkler system in Sheffield. I've got quotes from imist and Blue Light, a Plumis approved installer. Anyone know of any other companies that would cover Sheffield? Also, does anyone have any experience of insurance for these systems? I understand the...
  5. M

    Rubble filled wall restraint

    Hi, A survey has found a rubble-filled stone wall in our terrace needs strapping to the side walls and floor of the structure. The detail the engineer has recommended involves cutting out a big chunk of the inner leaf, drilling and gluing standard ties into the outer leaf, casting a 300mm cube...
  6. M

    3 storey open plan

    Hi, I'm looking to fully open up the ground floor of a small, three storey terrace, but need help with satisfying fire regs. Do I need to block off the stairs at first floor level, and install some sort of suppression system i.e. sprinklers on the ground floor? Do the stairs have to be fully...
  7. M

    Cutting purlins

    Hi, I've got an attic room in my small end terrace where I want to put in a Velux window. Each pitch of rafters has two purlins, where I want to chop a lower one through to fit the Velux. I will prop each end of the cut purlin down to the floor, with timber to spread the load across all the...
  8. M

    Underfloor heating over two types of floor

    Hi, I'm knocking through downstairs and fitting wet underfloor heating. One half is suspended timber, and the other half is currently just 100+ year old flagstones on the soil. I'm going to get rid of the flags and put in a new floor, but am I better doing solid floor or suspended timber...
  9. M

    Cellar trap door building regs

    Hi, Thinking about changing my ground floor layout and using a trap door to access the cellar and getting rid of the normal door. It's not a habitable cellar and just has gas and electric meters down there. Building control will need to approve the broader changes I have in mind, but would...
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