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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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    • CommentAuthorborpin
    • CommentTimeApr 12th 2019 edited
     
    Has anyone seen or used this stuff from GSE? The integrated PV panel mounts look great but the air circulation is fascinating.

    https://youtu.be/Woa5ahwFwkk
    http://www.gseintegration.com/en/InRoof.html
    http://www.windandsun.co.uk/products/PV-Mounting-Structures/GSE-Integration-Roof-Integrated
    • CommentAuthortony
    • CommentTimeApr 12th 2019 edited
     
    Probably confusion between temperature and heat.

    Yes panels do get hot but the amount of heat that can be extracted is surprisingly small, nothing like 40 % of a heating bill except in very low energy homes better than passive house or minergie or in May
    •  
      CommentAuthornigel
    • CommentTimeApr 14th 2019
     
    I have used the integrated PV panel mounts but not the ventilation element.

    I suspect most of the heat that is produced is when you least want it in the house.
    •  
      CommentAuthordjh
    • CommentTimeApr 14th 2019
     
    It seems a bit strange having only a ten year guarantee on a roof component, especially when the things mounted on it typically have 25 years?
    • CommentAuthorgyrogear
    • CommentTimeApr 18th 2019 edited
     
    well, no doubt that is because the roof itself, from new, will only have a 10-year warranty.

    The inference being that if the roof fails after 10 years, anything on it will not be insured anyhow - at least not by the builder's warranty.

    After that, it depends on what insurance type the home-ownber has, and no doubt the notion of "depreciation" would raise its head. Generally the insurer would regard the mounting as "past its life" after 10 years - if the home-owner choses to keep a PV system attached to it: most likely, if ever something went wrong, the owner might be left facing a large risk...

    gg
    •  
      CommentAuthordjh
    • CommentTimeApr 18th 2019
     
    Posted By: gyrogearwell, no doubt that is because the roof itself, from new, will only have a 10-year warranty.

    Depends. My roof surface has a longer warranty. My whole roof system has a moisture damage warranty of 25 years. So does the insulation. Structurally, I'd think an engineer's liability for errors in a roof design lasts longer than ten years.

    Generally the insurer would regard the mounting as "past its life" after 10 years - if the home-owner choses to keep a PV system attached to it: most likely, if ever something went wrong, the owner might be left facing a large risk...

    Again, the warranty on the panels is 25 years (and so are the microinverters in my case) and the FIT payments come for twenty years, so it would be unreasonable for an insurer to expect anything less than 20 years, IMHO.

    Basically, roofs are supposed to last a long time. A thatched roof has a 'short' expected lifetime of only 50 years or so.
    • CommentAuthorgyrogear
    • CommentTimeApr 18th 2019
     
    True, roofs are expected to last a long time - nobody is saying the opposite (the one on Notre Dame has supposedly lasted 850 years...). Rather, your observation was about warranty: that is what I was trying to respond to...

    The default warranty is generally for 10 years.
    https://hoa.org.uk/advice/guides-for-homeowners/i-am-buying/new-home-warranties-cover/

    If you have a longer one, you presumably paid more for it !

    I hope your roofs lasts at least 850 years for you, like Notre Dame !

    gg
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