Cement Board Questions - Drywall & Plaster - Page 2 - DIY Chatroom Home Improvement Forum

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Drywall & Plaster


Thread Tools Display Modes
Old 06-27-2011, 01:35 PM   #16
Join Date: Dec 2010
Posts: 46
Rewards Points: 45


Just for anyone who is seaching for similar answers.

I, as well another fellow that I found online both independently contacted Schluter, and Schluter did not recommend to slash or cut the vapor barrier open. Apparently it should be used on all exterior walls, regardless that Kerdi is applied. So I will be keeping mine on the 5 x 8 exterior wall. Also, two of the Schluter suppliers also noted here in Ontario that vapor barrier is kept behind the cb prior to applying the Kerdi.

Thanks for all the posts though.


trophywalleye is offline   Reply With Quote
Old 06-27-2011, 02:19 PM   #17
ccarlisle's Avatar
Join Date: Jul 2008
Location: Montreal, Quebec, Canada
Posts: 1,889
Rewards Points: 1,000

Well, all I can say is that if you ask 10 Schluter guys about Schluter products and they'll all say the same thing; if you ask 10 tile guys about Schluter products in a tiled shower, you'll probably get a 50;50 split. If you ask about Kerdi products in a tiled Ontario shower system - if you can find 10 of those - you'll also get a mixture of answers.

The fact is debatable and it is far too early in the existence of "Kerdi showers in Ontario" to be able to say what the right way is; but one thing Kerdi won't tell you about is how we here in Canada like to have our showers dry to the interior and we use Kerdi because it is (a) waterproof and (b) a vapour retarder. If you are worried that the small amount of vapour getting passed the Kerdi, the cbu and the vapour barrier, then by all means keep the vb intact. IMO there is greater evaporation 'draw' of vapour to the inside of a 20deg C house in winter than there is tendency for that same vapour to exit via the wall cavity.

But that's just me....
“The average American woman is about 25 pounds heavier than she was in 1960...Recognizing obesity as a disease will help change the way the medical community tackles this complex issue that affects approximately 1 in 3 Americans,”
ccarlisle is offline   Reply With Quote
Old 06-29-2011, 10:56 PM   #18
Registered User
Join Date: Mar 2009
Posts: 11,730
Rewards Points: 526

When you make a hole or slit in an air-barrier on a house, it will compromise it greatly. In a vapor barrier it has almost no effect except the width/length/size of the hole/slit, the rest of it is still working, (not like a balloon when a pin-hole ruins it- more like a brick wall with a few bricks missing)



If any ads are present below my answer or words underlined/colored, I do not condone/support/use the product or services listed/linked to, they are there without my consent.
17,000 dryer fires a year, when did you last clean the inside of the dryer near motor or the exhaust ducting?
Gary in WA is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Cement board for crawlspace skirting? IfItAintBrokeFixItAnyway Building & Construction 12 09-29-2010 07:43 PM
Cement backer board wadeseward Flooring 16 09-10-2010 11:34 AM
Laying cement board oguevarra Flooring 18 12-16-2009 09:21 AM
what waterproofing substance on cement board in bathroom(can't find Red Guard) Limit54 Building & Construction 15 11-19-2009 06:30 PM
Cement hardy board tmiles2246 Flooring 9 05-11-2009 04:10 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1