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Thread: R324.6.2 International Fire Setback

  1. #1
    Join Date
    Jan 2017
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    Brentwood, CA - Contra Costa County
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    R324.6.2 International Fire Setback

    New international fire 'ridge setback' says that you can be 18" to the ridge if the array is less than 33% of the ‘plan view total roof area’.

    Just not sure if it means 33% of the roof plane that the array is on, or if it means 33% of the entire house??

    Anybody have any clarification on this?

    Thanks in advance!

  2. #2
    Join Date
    May 2011
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    4,693
    I think total roof area is the entire house.

  3. #3
    Join Date
    Jan 2017
    Location
    Brentwood, CA - Contra Costa County
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    So if that's true then we now can do our solar layouts with 18" to the ridge instead of 3'.

    Just hope the AHJ's understand this...

  4. #4
    Join Date
    May 2018
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    Jamaica and london
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    Still does not allow solar panels to be designed to replace the roof... which would be my ideal idea... no more roofing, just assemble solar panels with rubber gaskets between them to create a water proof bond.

  5. #5
    Join Date
    May 2011
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    Quote Originally Posted by jayrob View Post
    So if that's true then we now can do our solar layouts with 18" to the ridge instead of 3'.

    Just hope the AHJ's understand this...
    Right. There may be a bunch of conversations in the short term. We're putting a big note about the July 1 supplement on our plans.

    Just make sure your plans get approved before you install the system.

  6. #6
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    Jan 2017
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    Quote Originally Posted by jaggedben View Post
    Right. There may be a bunch of conversations in the short term. We're putting a big note about the July 1 supplement on our plans.

    Just make sure your plans get approved before you install the system.

    Good idea thank you!

  7. #7
    Join Date
    Oct 2009
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    Austin, TX, USA
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    10,174
    Quote Originally Posted by jayrob View Post
    Good idea thank you!
    Getting approval prior to construction is a good idea when you do line side interconnections as well. Some AHJ's have some idiosyncratic ways of looking at them.

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