flightcrazed Posted 13 hours ago Share Posted 13 hours ago Hi all, working on a project that was originally designed to be an unvented attic with asphalt shingles. Plan is to change to metal, however the underlayment (Titanium UDL50) has already been laid and is only Class A under asphalt. I've found that Versashield can bring metal to Class A but not intended for unvented assembly. Anyone know of another product that could be laid on top of UDL50 to reach Class A for metal? I've found Atlas FR10 but all the documentation seem to support a commercial roofing system. Much appreciated! Link to comment Share on other sites More sharing options...
Hammer7 Posted 12 hours ago Share Posted 12 hours ago There are CSI folks that specialize in commercial roofing applications if you don't find answers here. You can get some local names from your local commercial supply house. 1 Link to comment Share on other sites More sharing options...
Gawdzira Posted 12 hours ago Share Posted 12 hours ago Would Denseshield work? I am not speaking from experience but seems like the right type of product. Link to comment Share on other sites More sharing options...
flightcrazed Posted 9 hours ago Author Share Posted 9 hours ago looks like the densdeck version might work...at least it's been tested by some metal vendors. i was hoping to find something a little simpler to install like 30# felt or similar Link to comment Share on other sites More sharing options...
Gawdzira Posted 8 hours ago Share Posted 8 hours ago I am going to look into this as I have a similar situation. I am doing a double roof system on my current project. The first sheathing layer is Zip and then 2x4's on edge to get my overhang and fill that cavity with closed cell spray foam. Metal standing seam over the top of the next sheathing layer. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now