Flooring Options for Mechanical Rooms?

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Author Message Brian Payne, AIA Senior Member Username: brian_payne Post Number: 36 Registered: 01-2014 Posted on Monday, April 14, 2014 - 05:28 pm:    Does anyone have a good recommendation for floor finish products for mechanical rooms that are slab-on-grade and also for composite decks above occupiable space? For slab on grade, I am considering either a hardener or epoxy/urethane system. For composite deck locations I am definitely looking for something that can also act as a "waterproof membrane". Thoughts? Wayne Yancey Senior Member Username: wayne_yancey Post Number: 639 Registered: 01-2008 Posted on Monday, April 14, 2014 - 05:33 pm:    Brian, The first one that comes to mind is by Dex-o-tex at http://dex-o-tex.com/products/WaterproofingDecking. Look for the products with M-E prefix There will be more at http://www.4specs.com/s/07/07-1800.html Bruce Maine Senior Member Username: btmaine Post Number: 27 Registered: 03-2011 Posted on Monday, April 14, 2014 - 08:01 pm:    I second Wayne's post. We've used the Dex-o-tex ME coatings often and even in mechanical rooms above surgical suites. Be sure to specify cove bases with the membrane running up the wall. Bruce Maine CDT LEED AP Steven Bruneel, AIA, CSI-CDT, LEED-AP, EDAC Senior Member Username: redseca2 Post Number: 444 Registered: 12-2006 Posted on Tuesday, April 15, 2014 - 12:44 am:    I will third the Dex-o-tex recommendation, knowing that there are many equals. But above grade, you need to think beyond a simple floor coating to also include containment curbs and a review of the waterproofing rating of the fire-stopping solution you are using at the floor penetrations to build a complete passive barrier against OOPS!. J. Peter Jordan Senior Member Username: jpjordan Post Number: 719 Registered: 05-2004 Posted on Tuesday, April 15, 2014 - 07:16 am:    Traffic deck coatings may be considered as well. Brian Payne, AIA Senior Member Username: brian_payne Post Number: 37 Registered: 01-2014 Posted on Tuesday, April 15, 2014 - 08:39 am:    Looks like we actually have consensus on something. Any suggestions about slab on grade? Steven - Great point about the fire-stopping issues. I hadn't thought about that. Dave Metzger Senior Member Username: davemetzger Post Number: 511 Registered: 07-2001 Posted on Tuesday, April 15, 2014 - 08:58 am:    How good a vapor retarder/barrier is there below the slab on grade? Unless there is a positive vapor barrier, I'd stay away from epoxies, as they are moisture-sensitive. Also, both urethanes and epoxies can act as a vapor retarder, trapping moisture within the slab. I think your idea of a hardener is a better solution.