How To Install DensGlass Exterior Sheathing
Written by Todd Fratzel.
DensGlass Exterior Sheathing is an excellent gypsum sheathing product specifically designed to be moisture resistant and fire resistant. It’s an excellent substrate behind lots of exterior cladding systems including brick, stucco, EIFS and lap siding products. It has a moisture resistant gypsum core and fiberglass exterior mats instead of similar paper faced products. The really nice thing is the manufacturer warranties the product for 12 months exposed to the environment prior to finishing the exterior siding.
Installing DensGlass On Metal Stud Framing
We are using the DensGlass Exterior Sheathing on a commercial project for an entry way that’s framed with metal studs. The entry way will eventually get a brick facade placed over the framing. For this project we’re framing the wall with 3-5/8″ 20 gauge metal studs with 5/8″ thick DensGlass Exterior Sheathing. We’ll then be installing 2″ of foam board, leaving a 2″ air space, then installing the 4″ thick brick.
We are installing the 5/8″ DensGlass directly to the metal studs. For this project we’re screwing the sheathing to the studs with self tapping bugle head screws. The nice thing about this product is you can cut it with a utility knife just like using regular drywall. Georgia Pacific publishes a pretty good resources for showcasing and using DensGlass Sheathing.
Once we’ve installed all the DensGlass then we’ll be installing two inches of DOW blue board foam insulation. Next the mason will install masonry anchors followed by a brick facad supported on the foundation brick shelf.
So far I’m impressed with this material. The composite action between the metal studs and the Densglass creates a really strong wall. Once we get the interior drywall in place it will be even stronger. I must say metal stud construction is really starting to grow on me, especially for commercial buildings.
Be sure to check back for posts on the finished project in the coming weeks.
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