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Thread: Solar Heating on Roof

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    Solar Heating on Roof

    I live in Long Island, NY and I want to mount a few solar panels on the roof of the house. I was concerned about the roof structure and if it can handle having that extra water load on the roof. Is it safe to install?

    I know certain areas have certain limitations on roof weight.

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    duraleigh's Avatar
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    Re: Solar Heating on Roof

    The general answer is "Yes" but you would need to do some homework to determine the load carrying capability of your particular roof.
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
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    Re: Solar Heating on Roof

    How much water would be in a 4x20 pane at any time?

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    Mod Squad jblizzle's Avatar
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    Re: Solar Heating on Roof

    I think they only hold a few gallons ... 10 at most. There should be specs somewhere. They do not weigh very much.
    Jason, TFP Moderator
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    Pool Tool's Avatar
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    Re: Solar Heating on Roof

    Most roof designs allow for a 40 psf (pounds per sq ft) snow load. Looking at one providers website, for differing panel sizes they list between a 1 - 1.5 psf wet dispersed weight load, considerably lower than the typical assumed snow load. Given that the panels would be dry in the winter when so would be expected, I would not guess there would be a lot of risk. This of course assumes the expected snow load and no other limitations are imposed.

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    Re: Solar Heating on Roof

    That's great. I thought as much, but I wanted to make sure that I'm not missing something.

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    soupy8728's Avatar
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    Re: Solar Heating on Roof

    I have 10 solar panels on my roof for heating the pool and they've been up there for 12 years with no (knock on wood) issues.
    IG Plaster with raised spill-over Spa, ~26,000 gallons, Built 2001
    Cartridge filter
    Solar heated

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