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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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General: Are all 'grey beads' the same?

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    • CommentAuthorOsprey
    • CommentTimeJan 9th 2023 edited
     
    I am looking into CWI for my 1920s house, and apparently bonded EPS beads would be the best solution. However, I see a lot of references to graphite/platinum/grey beads, and a wondering if all beads were pretty much the same now, or if I should be looking for anything specific.

    For instance, my local installer claims to use Evobead, which claims to have the appropriate 0.033 W/mK thermal rating, but just seems to say the beads are 'grey'. Otherwise, I need to go to a local branch of a national company for e.g. Thermabead 'carbon bead', or similar.

    My normal preference would be to go for a local company.

    Anybody have any thoughts/knowledge on this? Thanks.
    • CommentAuthorOsprey
    • CommentTimeJan 12th 2023 edited
     
    As far as I can find out, the answer to my question is 'Yes' - apart from claimed percentage use of recycled materials.
    • CommentAuthortony
    • CommentTimeJan 12th 2023
     
    👍
    • CommentAuthorjms452
    • CommentTimeJan 14th 2023
     
    Check the certificate and check the lamda value is << 0.04W/mK

    We used ecobead - also grey and also 0.033
    https://springvale.com/ecobead/

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