Secondary Water Resistance (SWR): (standard underlayments or hot-mopped felts do not qualify as an SWR)
☐ A. SWR (also called Sealed Roof Deck) Self-adhering polymer-modified bitumen roofing underlayment applied directly to the sheathing, or foam adhesive SWR barrier (not foamed-on insulation) applied as a supplemental means to protect the dwelling from water intrusion in the event of roof covering loss.
☐ B. No SWR.
☐ C. Unknown or undetermined.
What would you do for a roof that has tape over the decking seams and synthetic felt? Is that considered a Sealed Roof Deck?
What would you do for a roof that has tape over the decking seams and synthetic felt? Is that considered a Sealed Roof Deck?
I’m curious if this Is this a Zip system install? In NJ where I used to live it’s everywhere but I don’t think I’ve seen it here in FL more than a few times.
Anyway, I wouldn’t consider that a SWR, as it’s felt and synthetic or otherwise, it’s still felt.
Zip is a superior product and I would be interested to see how a home that’s properly built with the zip tape stands up to a hurricane. That tape is fantastic for sealing gaps and affixing pretty much anything. I used to have a few rolls of it laying around, but have used it all up. Too bad it’s like $1 per foot.
In order to qualify for the secondary water resistance (SWR) discount the (SWR) must be able to water proof the holes when shingle nails are driven through the (SWR). So your answer would be B.
Mark, I’m not sure if it’s a Zip system install or not. Doing roofing and storm restoration during the Hurricanes in s Fla and over in Alabama a few years ago, some of the roofs were done that way, and it would pass as good enough for the code inspector to be fortified, so I was thinking about it and just thought I would ask so I would know if I came across it doing a wit mit report. I would be curious to see how it holds up as well.