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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
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Housing - New Build: passive slab query

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  1.  
    • CommentAuthoralexphd1
    • CommentTimeJun 27th 2014
     
    Hi. I'm not sure if this has already been covered but are banks/building societys happy to supply a normal mortgage on a house built with a passive slab, I'm more thinking from the resale point. Cheers, alexander.
    • CommentAuthorTriassic
    • CommentTimeJun 28th 2014
     
    How would they ever know you had such a slab? The last property I had valued for a mortgage the valued didn't even go in the property.

    If they don't want to lend to you they will find a problem and use it. Recent ones I've come across include, stream at the bottom of the garden, timber frame (non-standard construction), Japanese Knotweed within 100m of property, loan to value too high!!
    •  
      CommentAuthordjh
    • CommentTimeJun 28th 2014
     
    Posted By: alexphd1Hi. I'm not sure if this has already been covered but are banks/building societys happy to supply a normal mortgage on a house built with a passive slab, I'm more thinking from the resale point. Cheers, alexander.

    As long as you have an engineer's sign off and NHBC or Council of Mortgage Lenders cert type statement I don't think there'd be a problem. They like to know that the building is insured too!
    • CommentAuthoralexphd1
    • CommentTimeJun 28th 2014
     
    Thanks for the replies, it was just something my architect flagged up. I cant see their being a problem but thought its better a second opinion. Phone call to MBC Monday morning then :bigsmile:
  5.  
    Hi Alex, I developed the Passive Slab and the Twin Stud, its supplied in a shareholder partnership with MBC. We've had no problems from insurers because everything is signed off by our Engineer.
    Other products close to market that compliment the Passive Slab/Twin Stud are the FiWi HRV (New name FreshR) and the Tri-Solar Roof that supplies all the energy for the house.
    •  
      CommentAuthorjoe90
    • CommentTimeJul 2nd 2014
     
    I just found this on the tinternet http://passivedesign.org/isoquick
    • CommentAuthorTriassic
    • CommentTimeJul 2nd 2014 edited
     
    Posted By: joe90I just found this on the tinternethttp://passivedesign.org/isoquick" >


    That looks easy, can you buy it anywhere?
  8.  
    I've used Isoquick foundations for my build and the first picture in the link is of my ground works. Don't know where they got it from!
    •  
      CommentAuthordjh
    • CommentTimeJul 2nd 2014
     
    Posted By: TriassicThat looks easy, can you buy it anywhere?

    Pretty much all the systems are easy, once you have a design signed off by an engineer. It's all giant lego. I looked at Isoquick but eliminated them precisely because they don't use a ringbeam, which I needed for my wall type. I asked Supergrund to quote but they didn't. etc etc. Incidentally, note that you don't need EPS300 under the bulk of the slab; you'll get better U-values by using something else. It's only where there are wall loads that you need something strong.
    • CommentAuthorTriassic
    • CommentTimeAug 14th 2014
     
    In my search for a suitable foundation system I came across these http://www.advancedfoundationtechnologylimited.co.uk/the-product

    Anyone used them?
    •  
      CommentAuthorjoe90
    • CommentTimeAug 14th 2014
     
    djh, what system did you use then with a ring beam as that is what I want.
    • CommentAuthorTriassic
    • CommentTimeAug 14th 2014 edited
     
    Supergrund, Viking House and AFT (link 2 above) all use ring beams according to their brochures.

    Edit - Someone in another similar thread suggested Supergrund supplied by Partel http://www.partel.co.uk/products2.php?c=27. I contacted Partel but they don't offer the system in the UK at present, they suggest I contact Joe at MBC Timber Frame. Hope that helps.
    • CommentAuthorDarylP
    • CommentTimeAug 15th 2014
     
    If anyone is interested in the Supergrund system, whisper me, I have a contact you can use to get to the suppliers 'direct'.

    Cheers..:smile:
    • CommentAuthoradwindrum
    • CommentTimeAug 15th 2014
     
    I used advanced technologies...He was good but rushed mine a bit as was filming with Kevin in London and we had poor weather. If you keep eye on the detail with him then I would recommend him. He allows you to supply the metal and work with him which brought the cost right down.

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