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Vapor Barrier In Steam Rooms

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Old 03-25-2012, 09:42 PM   #81
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Re: Vapor Barrier In Steam Rooms

Originally Posted by D. Jones Const View Post
...Becouse the old way worked in the past doesnt mean Kerdi waterproof membrane isnt a far superior product becouse it is, period.
That's a bold Kerdi statement and far from the truth.

Noble Companies Noble Seal TS outperforms Kerdi at every turn. Dal Seal TS does as well.

Kerdi requires a non-modified thin-set. A properly spec'd steam shower will require a modified thin-set. Look it up.

To say Kerdi is the best is silly and shows that you haven't done your research.

A vapour barrier is required in many steam showers. One can build a great steamer with Hydro Ban but not without poly. If I'm not mistaken 6mil poly has a better perm rating than Kerdi.

Did you know Kerdi's perm rating is 0.75? And Noble's Noble Seal TS is 0.50?

Did you know that Kerdi is not used on wet room floors in Europe they use a thicker version - Kerdi DS. Why do you think that is?

Where do you Kerdi pusher get all your mis information.

Last week I heard a Kerdi rep talking about exterior decks. I asked about Granny Rapid and Ditra Drain. I was told I could use it. I have been trying for 8 plus days to get that in writing. Don't believe what you have been told - believe what is fact and required. These things are not always the same.

Kerdi is far superior - Period. That's funny. It's the thinnest membrane on the market to my knowledge.

+ YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.

This steamer in the video was built for a lady who sufferes with Lyme Disease and will be using the steamer to de-toxify her body sometimes two or three times a day. It is built with Noble Seal TS over Green EBoard and the perm rating is only 0.05 and this is low enough to handy even commercial hours of operation which the unit will not see.


Last edited by JohnFRWhipple; 04-16-2012 at 09:49 AM.
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Old 04-12-2012, 09:21 AM   #82
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Re: Vapor Barrier In Steam Rooms

Originally Posted by angus242 View Post
If it's absorption rate is around 10%, that would make it roughly 90% "waterproof".

The damage may be prolonged, but it will happen. I have seen water penetrate grout in as little as 5 years on a shower with tile over greenboard. I would never trust cementious grout, sealed or not, to keep moisture from penetrating to a substructure.

Good thing for me...and you...those millions of showers need to be redone.
So are you saying that you use epoxy grout in wet areas? Or are you just saying that you expect cementious grout to leak and therefore use a membrane to stop penetration.
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Old 04-12-2012, 09:25 AM   #83
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Re: Vapor Barrier In Steam Rooms

I only use urethane grout and I use it for every job, regardless of location.

I'm not saying cementitious grout will "leak", I'm saying it's not waterproof so moisture will penetrate to its substrate.


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