Garet Posted March 22, 2010 Report Share Posted March 22, 2010 This is on a bank owned shell about 4 years old, exterior mostly installed, electric installed, but otherwise it's just studs inside. Exterior has a reflective material used as a weather barrier under vinyl siding. Same material was used on the bottom of the roof sheathing. Looks like a woven material with a foil coating? I found no markings on either side. Any idea what this is? Is it listed for use as a weather resistant barrier? If so, is it supposed to be sealed with UL-181 tape instead of lapped shingle-fashion? Click to Enlarge 62.71 KB Click to Enlarge 37.65 KB Click to Enlarge 54.13 KB Quote Link to comment Share on other sites More sharing options...
Marc Posted March 22, 2010 Report Share Posted March 22, 2010 Often used on roof decking with the reflective side faced down to mitigate the radiant mode of heat transfer. I haven't seen it used on sheathing in these parts. I wonder if it has an acceptable perm rating for that application. Marc Quote Link to comment Share on other sites More sharing options...
Chad Fabry Posted March 22, 2010 Report Share Posted March 22, 2010 It looks like a recipe for shortened roofing life and and soggy osb. Quote Link to comment Share on other sites More sharing options...
Nolan Kienitz Posted March 22, 2010 Report Share Posted March 22, 2010 Radiant barrier installed 'directly' to decking (not good). At very least should have an air gap between radiant barrier product and decking to allow adequate air flow. Installation on walls not a good thing. Quote Link to comment Share on other sites More sharing options...
Tom Raymond Posted March 22, 2010 Report Share Posted March 22, 2010 There are all kinds of radiant barriers out there, but I've yet to see one that can be applied to both interior and exterior surfaces. Given the woven appearance in the second pic I'd guess you have an interior product, unless of course it doesn't rain there. Sorry, no idea what product that is. Tom Quote Link to comment Share on other sites More sharing options...
kurt Posted March 22, 2010 Report Share Posted March 22, 2010 I think I'd have to report that with a short ditty on "Building Science 101". Given the "arrangement", I'd tell whoever was soaking up that mess to strip everything back to structure. It'd be easier than trying to go forward from the current state. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.