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Jerome J. Lazar
Senior Member
Username: Lazarcitec

Post Number: 7
Registered: 05-2003
Posted on Wednesday, August 06, 2003 - 07:14 pm:   Edit PostDelete PostPrint Post

Hey WP guy - your thoughts on how to waterproof a steam shower, one enclosed by cement board over metal studs or metal furring...where should insulation go and what would be the best waterproofing membrane to install - we have specified products like Nobleseal TS for a sheet membrane and also Vulkem 450 for a fluid applied membrane in the past, however both are to expensive for one of our clients. In our opinion, its too bad, these products work and avoidance of moisture penetration is more important than $$$. However, we are looking for any other thoughts or suggestions.
Margaret G. Chewning CSI CCS
Advanced Member
Username: Presbspec

Post Number: 8
Registered: 01-2003
Posted on Thursday, August 07, 2003 - 07:07 am:   Edit PostDelete PostPrint Post

Have you checked the TCA handbook for recommendations for wet locations? I've used w244 with a heavy plastic sheet for the membrane element. Installed with B415 at the floor/drain using a self-adhesive (healing) type flashing membrane it worked real well. 'Course this was a military project so specific name brands could not be used.
John Bunzick, CCS, CCCA
Senior Member
Username: Bunzick

Post Number: 122
Registered: 03-2002
Posted on Thursday, August 07, 2003 - 09:28 am:   Edit PostDelete PostPrint Post

Companies which make tile setting products have various assemblies for waterproofing under the ceramic tile. Systems typically consist of a trowel-on waterproofing with fabric reinforcing. Tile can be set directly on the waterproofing. I don't know if they're suitable for steam showers, but I've used them in regular showers (and even a baptismal font). Check out Mapei and Laticrete, for example.
j smith
Senior Member
Username: Specbuster

Post Number: 12
Registered: 07-2003
Posted on Thursday, August 07, 2003 - 10:00 am:   Edit PostDelete PostPrint Post

For steam shower applications I have recommeded only one type of system. The main reason is because of service temperature concerns.This product has a service temp to 220. The 450 will soften and may cause problems.I prefer liquids to sheet systems for only one reason.Liquids are self flashing and provide a monolithic membrane with no seams.Hope this helps....

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