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Old 07-01-2017, 03:01 AM
GpsFrontier GpsFrontier is offline
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Join Date: Mar 2009
Location: Lake Havasu AZ.
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Hello jonoyakker,
First "How well does it breathe?" is a pretty vague question? How well do you need it to breath? Second, I don't understand the question"how much rain will fall through vs. being shed off of a gently sloped roof?" A roof will block 100% of the rain, as well as sunlight. Screening will allow 100% of the water to pass through. Screening isn't a rain barrier. It will soften the blow of large water droplets in a heavy rain, but all the water will still go through it.
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