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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.

Buy individually or both books together. Delivery is free!


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    • CommentAuthorluz13827
    • CommentTimeFeb 4th 2022
     
    Hello,

    Not sure if anyone has any idea about this - we bought a plaster sealer to use under some clay paint (over clay plaster and clay boards), which says that it is breathable. The ingredients have 'acrylic copolymer' in it, so I questioned, and the manufacturer said "because its an emulsion polymer not a solution polymer - these are inherently super-breathable, as are all of our paints, varnishes & other products"

    They seem sure, but just to reassure me, I wanted to ask if anyone has any knowledge of this. Does emulsion polymer = breathable? Don't want to ruin the breathability of the clay at the last step!

    The alternative is we could just do a mist coat of the clay paint first, but we have already ordered the plaster sealer, and supposedly it's made for the job, so may work better.
    •  
      CommentAuthordjh
    • CommentTimeFeb 4th 2022
     
    Sorry, but why would you need anything between clay board, clay plaster and clay paint?

    As regards breathability, look at the manufacturer's data sheets, and if you can't find the information there, ask them to put a copy of their third-party tested results in the post to you.
    • CommentAuthorrevor
    • CommentTimeFeb 4th 2022
     
    We had no problem putting clay paint on lime plaster we had to thin down the first coat.
    •  
      CommentAuthordjh
    • CommentTimeFeb 4th 2022
     
    We put Earthborn clay paint on lime plaster. No need to dilute. On gypsum we put Dulux Supertrade Matt on first (they publish Sd values for it) followed by the Earthborn clay paint. We didn't use any clay plaster but I don't understand why it would need anything additional.
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