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Building Regs Advice UK Kitchen/Garage

Phil Turner
sidste år

Hi,


Looking for a little advice please. I want to extend my kitchen out into the garage on two sides, this would involve knocking down two non structural walls which are part of an existing kitchen extension (crossed out in red) and building them back up (green). I can actually see a gap between the top of the wall and the ceiling they attached to the existing garage joists so I'm confident these walls are holding nothing up. When building these back up what sort of structure will they need to be to meet fire & building regs in the UK as one side will be liveable space and other side a garage. I will also need to raise the floor in the new areas so can I build up a couple of rows of bricks before installing DPM and pouring a new concrete floor then build walls on top?


Can I get away with an insulated stud wall with some fire resistant plasterboard or do they need to be properly brick built?


The right hand side wall is a single skin brick wall attached to the neighbour's garage. Can this just be damp proofed, insulated and plaster boarded?


Bit that juts out onto patio will just become a single skin brick 'shed'.


Cheers




Fremhævet svar
  • PRO
    Resi Design Ltd.
    sidste år

    Hi there Phil,


    I spoke with our Building Regulations team about your query and they came back to me with the following advice which could be very helpful for you.

    The fire strategy for these proposed works needs to be considered holistically with respect to the entire property, not just the works at this level. At this early instance, we would advice you to contact us at RESI directly with a full overview of your property and we can advise on the full potential feasibilities of your proposal. It does surprise clients often, but seemingly simple internal alterations such as these proposed require considered specified works to achieve UK building regulations compliance.


    Generally, regardless of the fire strategy to the upstairs floors, if the garage is to remain in use for vehicular storage then it should be separated from the rest of the property with 30 minute fire resisting construction. This can be done with timber studwork with 12.5mm plasterboard to each side or 15mm fireboard on one side and calcium silicate/concrete boarding on the other - naturally the garage is a cold-bridging space and so any partition should be thermally insulated to current part L standards as well.


    A structural engineer should be appointed to confirm the part A compliance with respect to structural integrity and at RESI, we do not advise conducting works to load bearing members without the advice and engagement of an engineer. We have several engineers we work frequently with who can engage on your project at a technical level alongside ourselves to ensure that a set of compliant building regulations scope drawings can detail and demonstrate how the works should be done properly, for both your contractor and a building inspector.


    Incidentally, the party wall structure should be surveyed for inherent defects prior to specifying a new dpc or injected dpc solution, with all new insulation measures satisfying the requirements of Part L of the building regulations for upgraded elements.


    We hope this is helpful, but if you do have any other questions regarding fire safety do not hesitate to get in touch with our team. We have an internal team of 40+ architects, surveyors, BREGs and planning officers who can advise and help you create the home you want and need. You can book in a free advice call to chat with our architectural experts about you project at a time that suits you. Best fo luck with your project.


    Have a lovely day.

    Bríd and the Resi Team

    (8) kommentarer

    • PRO
      GREENSTONE DESIGN LTD
      sidste år

      Hi Phil, the Wall/s between the house and the garage needs to comply with building regulations - in terms of U value requirements and be 30 min. Fire resistant. This can be achieved in studwork. contact kingspan and or British Gypsum for free advice on the makeup of the wall and materials required. I would also be aware that if you wished to sell your home - you may require a Building Regulations Final certificate - however without seeing your home I cannot advise you more accurately.

      I hope that helps,

      Michelle

      Phil Turner thanked GREENSTONE DESIGN LTD
    • PRO
      Caldicot Kitchen & Bathroom Centre
      sidste år

      Seek out a local architect to assist - they will be best placed to advise, particularly wrt the structural requirements. You will also need to take care around any "party wall" - always a thorny topic...

      Phil Turner thanked Caldicot Kitchen & Bathroom Centre
    • Ruth House
      sidste år

      We've just had half our garage converted into a downstairs bathroom. We submitted plans to building control (not planning permission, which you may require if your garage roof line is changing, I'm not sure). They stipulated the type and thickness of insulation required but a stud frame wall was fine between garage and room. The garage side had to be plastered over as well to comply with fire regulations. We were lucky because ours is an integrated garage the external wall was already double skin.

      Phil Turner thanked Ruth House
    • PRO
      i-architect
      sidste år

      Yes you will need a fire resistant and insulated wall. You may also need to make alterations to the floor slab to add insulation to bring it up to habitable standards too. As well as the roof / ceiling.


      As long as the performance requirements are met you don't have to use any one particular material, such as brick, you just need to use a combination of materials that meets the spirit of the building regulations (the regulations are just guidelines, not specifications).

      Phil Turner thanked i-architect
    • Cadplan Architecture
      sidste år

      Well I've designed a number of similar situations, it's fairly straightforward. As regards the new separating partition it will need to acheive current thermal standard as well as being secure etc. I would look to perhpaps use a 140 thick Aircrete block plus thermal laminates, if you would like us to help just drop me an email and I can sort everyththing out for yo- Andrew, office@cad-plan.co.uk

      Phil Turner thanked Cadplan Architecture
    • Phil Turner
      Forfatter
      sidste år

      Thanks everyone for the advice :-). We decided against a full DIY job so have some builders we've used before coming in to quote. Cheers

    • PRO
      Caldicot Kitchen & Bathroom Centre
      sidste år

      Will look forward to some pics of the finished result!

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