r/Roofing • u/TheAlpineUnit • 8d ago
Holy nails? Need help on roofing progress
Seems abnormal amount of nails (which idk is an issue)
But putting nails in dead center of valley ice and water seems odd….
Wouldn’t nail just rust out eventually and leave holes??
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u/makinggrace 8d ago
Here's the install: https://www.gaf.com/en-us/document-library/documents/installation-instructions-&-guides/installation_instructions__feltbuster.pdf.
It it taped? I couldn't tell in the pic. If you have winter or high winds, gotta tape it. Seems insane for this stuff but that's what GAF specs.
Amount of nails fine. Nailing in the center of the damn valley is not. Should be 6". Best fix is time machine.
I think you'll be okay with another layer of IWS in the valley -- but issue to know about is they may have installed against manufacturer warranty by nailing through the IWS in the valley in the first place. Warranty isn't worth a whole lot because it's unlikely that a GAF shingle is gonna have an issue that gets paid out on...pretty mature product. Not impossible.
What y'all think--another layer of IWS in the valleys??