Thin Brick Veneer over DensGlas

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Author Message Anonymous   Posted on Wednesday, April 16, 2008 - 03:13 pm:    Any concerns with this application of Thin Brick over DensGlas over steel studs in the SouthEast US? Nathan Woods, CCCA, LEED AP Senior Member Username: nwoods Post Number: 246 Registered: 08-2005 Posted on Wednesday, April 16, 2008 - 03:35 pm:    How are you attaching the thin brick to the DensGlass? In the southwest, we scratch & brown with plaster, and stick the brick on the brown coat. We use 1/2" plywood or DensGlass behind the stucco depending on the fire rating or structural (sheer) requirments, and sometimes both. Richard Howard, AIA CSI CCS LEED-AP Senior Member Username: rick_howard Post Number: 171 Registered: 07-2003 Posted on Wednesday, April 16, 2008 - 03:46 pm:    I recall a thin brick veneer at a project in Toledo where children discovered that if they threw a baseball at the wall, the thin brick would pop off. If your building is going to be exposed to such exuberance you may want to have a sample panel to challenge with your fastball. Steven Bruneel, AIA, CSI-CDT, LEED-AP Senior Member Username: redseca2 Post Number: 94 Registered: 12-2006 Posted on Wednesday, April 16, 2008 - 03:54 pm:    Per Richard's comment, DensGlass alone may have too much "give" spanning between the studs allowing a stiff veneer brick to pop off. Nathan mentions plywood as a stiffer backing. Another option is cementitous backer boards over the DensGlass. Robin E. Snyder Senior Member Username: robin Post Number: 182 Registered: 08-2004 Posted on Wednesday, April 16, 2008 - 04:08 pm:    Dens-glass isn't approved by GP for "adhered" installations. If you want to install the thin brick over dens-glass I recommend, from inside out: Dens-glass, weather barrier (similar to Grace permabarrier), lath with paper backing, scratch/brown coat, than thin set the mortar to the brown coat. Nathan Woods, CCCA, LEED AP Senior Member Username: nwoods Post Number: 247 Registered: 08-2005 Posted on Wednesday, April 16, 2008 - 05:30 pm:    Yes, Robin's post is much more specific and is the system I was inferring. I was being overly generic. As for backing...it depends on the project and the developer's willingness to invest in durablity. On the low end, I have seen thin brick applied over lath/stucco only, without any other backing between 16" OC studs in some housing applications. The weight and profile of the brick is a factor also, and how it's capped (such as with a full brick soldier course or precast or similar) Michael D Chambers FAIA FCSI Senior Member Username: sbamdc Post Number: 12 Registered: 06-2006 Posted on Thursday, April 17, 2008 - 04:34 pm:    Irrespective of the backing, it is critical to specify that the thin brick be fully back-buttered when installed. Many, if not most, of the thin brick delamination failures I have seen are due to insufficient mortar adhesion due to notched trowel application, air bubbles, and voids in the mortar. Marc C Chavez Senior Member Username: mchavez Post Number: 298 Registered: 07-2002 Posted on Thursday, April 17, 2008 - 05:08 pm:    panelized thin brick product that makes the envelope a rain screen - STONEL http://www.stonelsystems.com/ in this system its glued to a metal framework and only "hung" in the field. Have not used it yet.