I’ve attached a new draft image to preview, before finalizing. I’d like to hear any valuable feedback from the forum. Your experience helps to make these improvements to add to make quality images. Thank you!
This manufacturer states 1/2" in 12
this one says 1/4:12
https://documents.gaf.com/installation-instructions-&-guides/liberty-sbs-self-adhering-installation-instructions-trilingual-reslb504-(9-22).pdf
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Thanks Brian.
I used information from IRC:
“R905.5.2 Deck slope.Mineral-surfaced roll roofing shall not be applied on roof slopes below 1 unit vertical in 12 units horizontal (8-percent slope).”
BUT this does not mention single or double-ply. Would a double-ply have any affect on the slope value?
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Maybe, manufacturers generally know the limits of their product. Often code will defer to manufacturers as the authoritative. Perhaps you should reference the ICC when mentioning this limitation. I just thought it was interesting.
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Cool, I’ll look into it. Thanks for the find!
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Two Ply Self-Adhered Roofing System. Double-ply roll roofing systems are typically composed of either modified bitumen (Mod Bit) systems or modified roofing (Mod Bit) self-adhered (SA) systems and hybrid systems. Double ply, Full base, self adhering, and cap sheet, self adhering with granular.
Manufacture’s installation instructions trump code.
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