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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

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    • CommentAuthordelprado
    • CommentTimeSep 28th 2017 edited
     
    I have a 70mm cavity (out of interest does anyone know what the average is for a 20s or 30s house - I was pleasantly surprised mine was this big), and there are some gaps (around air bricks, in areas where I will be filling windows in, etc), what should I replace with? I can't use eps (which is what my insulation is) as I dont be able to stop it going everywhere, etc.
    • CommentAuthorgravelld
    • CommentTimeSep 28th 2017
     
    I'd like to know what you find out.

    I assume if it's a 20s or 30s house the cavity has been insulated recently, so it's full fill (in theory). This makes it more difficult I think.

    There have been some firms I've seen offering to full fill partial fill cavities with a different insulant.
    • CommentAuthortony
    • CommentTimeSep 28th 2017
     
    PVA eps beads blown or poured in
  1.  
    You have EPS beads in there already? But there are gaps? As tony said, I would top up where you can with more of the same. That's what I have been doing with my partially-filled foam 1950's walls. Topped off with EWI in the future.
  2.  
    sounds like a job for the mighty foam gun
    http://www.everkemproducts.com/product/long-barrel-foam-gun/
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