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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.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.

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    • CommentAuthorbogal2
    • CommentTime6 days ago
     
    If I wanted to externally insulate a victorian end of terrace with lime render, wood fibre and Warmcel between timber I-beams would this be the best method not using fossil fuel insulation? Maybe 40mm wood fibre-boards with 200mm -I beams fixed to the walls. Below dpc I realise I would need to use EPS. Some of the walls would then be 550mm thick as there is a cavity with 50mm of eco-beads for some of the building. Is this acceptable?
    • CommentAuthortony
    • CommentTime6 days ago
     
    I can’t see a problem with using fossil resources to make insulation, a LOT better than burning them. I would shy away from natural fibre external insulation as it is not fail safe. Wood framing is only safe so long as it never gets damp or wet.
    • CommentAuthorJonti
    • CommentTime6 days ago
     
    Tony,

    getting wet or damp is not the problem, it's the not drying out that creates one. I would agree with you about the 'fossil fuel insulation'
    •  
      CommentAuthordjh
    • CommentTime6 days ago
     
    Posted By: bogal2If I wanted to externally insulate a victorian end of terrace with lime render, wood fibre and Warmcel between timber I-beams would this be the best method not using fossil fuel insulation?

    It sounds pretty good to me. You'll need to pay attention to the detailing as Tony suggests and as I guess you already know. But the humidity buffering will provide some safety margin and the vapour-open nature will help a lot.

    I don't disagree with Tony about the relative merits of using petrochemicals to make insulation versus most other uses, BTW.
  1.  
    The build-up is acceptable if the thickness is acceptable to the client. Looks like about 0.13W/m2K.
    • CommentAuthorbogal2
    • CommentTime5 days ago
     
    Thanks. Its a building this being converted into a food bank and emergency accommodation for the council. I worry about what's going to happen to all this plastic insulation in the future when buildings are decommissioned.
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