Terrazzo

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Author Message Jerome J. Lazar Senior Member Username: Lazarcitec Post Number: 8 Registered: 05-2003 Posted on Friday, August 08, 2003 - 10:27 am:    Int. Designer has speced 'White Patina Terrazzo' for the floors of public restrooms in a condominium/hotel. ID will not provide any further information. Is this cement terrazzo or epoxy? Which type of terrazzo would be recommended for this application? Not being a terrazzo maven, I look to this forum for suggestions and recommendations. Helaine K. Robinson CCS Member Username: Hollyrob Post Number: 4 Registered: 07-2003 Posted on Friday, August 08, 2003 - 10:33 am:    Why not start with the NTMA at http://www.ntma.com/? Jerome J. Lazar Senior Member Username: Lazarcitec Post Number: 10 Registered: 05-2003 Posted on Friday, August 08, 2003 - 10:45 am:    Helaine, NTMA is an excellent source, however it does not have a sarch choice and google searches for 'White patina terrazzo' turn up nothing..also I look here on this forum for the knowledge from my peers and those who have learned their lessons over time. I find forum information to be extremely helpful as a specification writer in expanding my knowledge base. Helaine K. Robinson CCS Intermediate Member Username: Hollyrob Post Number: 5 Registered: 07-2003 Posted on Friday, August 08, 2003 - 10:52 am:    Another good source might be a terrazzo contractor such as Santarossa in Indianapolis: David Santarossa ds@santarossa.com (317)632-9495 (ext. 3020) - Holly Bill DuBois (Unregistered Guest) Unregistered guest Posted on Friday, August 08, 2003 - 03:01 pm:    Question: Why use epoxy terrazzo instead of traditional sand-cushion cementitious terrazzo? Answer: Because of its unlimited color palette and higher strength epoxy terrazzo offers more design possibilities than cementitious terrazzo. Epoxy terrazzo provides better resistance to stains resulting from wetting, food, urine, oils, acids, and mild alkalis. Cementitious terrazzo is generally not recommended for use in toilet rooms, kitchens, and laboratories. Epoxy terrazzo contributes considerably less weight (3 p sf versus 30 psf) and thickness (3/8” versus 2-1/2”) to construction. Reduced installation time of epoxy terrazzo results in reduced cost. The cost difference depends on the market. For instance, in union markets like New York City, epoxy terrazzo can be 20-25% less expensive than sand cushion terrazzo. In non-union markets, the difference may not be as great. Dave Metzger Senior Member Username: Davemetzger Post Number: 49 Registered: 07-2001 Posted on Friday, August 08, 2003 - 03:35 pm:    There is no universal panacea. Everything that Bill duBois says is true. Additionally, you are not limited to divider strips avery 4 feet or so with epoxy terrazzo, as you are with sand-cushion cementitious terrazzo. However: epoxy terrazzo does have disadvantages. Polymer patching mortar is required for slab patching; typical flash patch and similar products are not strong enough (general rule, substrate must be stronger than subsequent toppings and finishes). Epoxy systems are not suitable where the possibility of hydrostatic pressure exists (as with slab on grade)--use polyacrylate-modified cementitious terrazzo in these locations, with the caveat that generally epoxy terrazzo will wear better than polyacrylate). Jerome J. Lazar Senior Member Username: Lazarcitec Post Number: 11 Registered: 05-2003 Posted on Friday, August 08, 2003 - 04:18 pm:    Thanks Bill & Dave, your information is what I seek, now I can do further research at NTMA and General Polymer as I need to provide answer by Monday...much appreciation. Jo Drummond Senior Member Username: Jo_drummond Post Number: 66 Registered: 03-2002 Posted on Monday, August 11, 2003 - 05:00 pm:    Epoxy may yellow if exposed to UV. Your color sounds like it is white, so that may be a problem, depending on the exposure.