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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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    • CommentAuthorRex
    • CommentTimeJan 13th 2022
    What ho one and all,

    A small 'article' (advert?) in today's Metro is headlined Plastic Bottle Dog Beds and is about recycled plastic bottles being reduced to spun polyester fibre (settlebeds.com)

    When I was building, although my house is insulated with Warmcell, it was necessary to buy extra insulation to stuff into all the nooks and crannies. At the time, many of the energy companies were offering BOGOF deals. I bought quite a lot recycled insulation from B&Q or Homebase, that was nice soft, spun polyester, non-itchy and easy to work.

    While I no longer need any more insulation, I no longer see any deals and certainly when visiting the warehouses, no longer see recycled polyester insulation on sale.

    It seems a perfectly good insulation and recycling solution so why is it no longer available? What is considered to be the downsides?

    Toodle pip
    This one? Apparently is in stock near me. I also used some a while back and liked working with it.


    Many building materials seem low stock at the moment: supply chain problems, Covid, Brexit, HGV drivers, etc etc etc

    The quoted R value suggests it's not quite as good insulation value as some mineral/glass wools, so you'd need to use bit more thickness of it to get the same results. I also don't know about fire resistance.

    Recycled plastic bottles can be used to make many things including new plastic bottles. Recycled glass bottles can be made into new bottles, or glass wool insulation. I've no idea if insulation is a good/bad use for them, compared to alternative uses, probably depends how far the material is transported to/from.

    Edit: for comparison, recycled glass wool
    • CommentAuthorRex
    • CommentTimeJan 13th 2022
    Interesting. As I say, I don't need it. Don't think I considered the fire implications but I only used it in nooks and crannies, and given that it is a timber frame house, I am not too worried about the recycled insulation.

    I do know that nothing I tried would make the Warmcell ignite; it just kinda smouldered and went out.

    I still have a roll i the loft so may check the fire info.
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