Mike Lamb Posted December 19, 2016 Report Share Posted December 19, 2016 Is it okay to sheath the exterior walls of a garage using only drywall? Click to Enlarge 30.02 KB Link to comment Share on other sites More sharing options...
palmettoinspect Posted December 19, 2016 Report Share Posted December 19, 2016 Gypsum makes an "exterior" grade drywall sheathing. It's seen on many many older 1960-80s homes in my neck of the woods. http://www.americangypsum.com/products/ ... -sheathing ETA: Typically somewhere on the paper it should read "exterior sheathing" or something similar. Link to comment Share on other sites More sharing options...
kurt Posted December 19, 2016 Report Share Posted December 19, 2016 Is it Denshield? Maybe Densglass Firegard? Link to comment Share on other sites More sharing options...
Tom Raymond Posted December 19, 2016 Report Share Posted December 19, 2016 Very common here on 60s stuff. Never seen it on anything newer. Link to comment Share on other sites More sharing options...
kurt Posted December 19, 2016 Report Share Posted December 19, 2016 We got a lot of restrictive weird fire code stuff in Chicago. Could be fire code related. We've done some jobs where we have to put on 3 layers of 5/8's on exterior walls to meet code. Link to comment Share on other sites More sharing options...
Marc Posted December 19, 2016 Report Share Posted December 19, 2016 That doesn't fly here in residential, just commercial. Maybe it's just the local muni authority that prohibits it. Marc Link to comment Share on other sites More sharing options...
mlparham Posted December 19, 2016 Report Share Posted December 19, 2016 Is it okay to sheath the exterior walls of a garage using only drywall? Click to Enlarge 30.02 KB What is the exterior siding and age of the home? Link to comment Share on other sites More sharing options...
Mike Lamb Posted December 20, 2016 Author Report Share Posted December 20, 2016 It's standard drywall with vinyl siding. There was a Tyvek MB. About 2007. I would think OSB or plywood would be needed somewhere at least for lateral bracing. There were no signs of structural problems. Link to comment Share on other sites More sharing options...
BADAIR Posted December 20, 2016 Report Share Posted December 20, 2016 gypsum board & diagonal metal strap with other components are code approved materials for lateral bracing when properly installed & where allowed...consult ahj for further & see the consolidated 8 methods allowed at this link http://www.jlconline.com/how-to/framing ... -the-irc_o Link to comment Share on other sites More sharing options...
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