Reinforcing the change in planes in your shower and curbless bathroom are critical to the performance of the waterproofing system. I have wanted to use a product called Kerdi Coll for years now and have finally got a taste.
When used in install Kerdi to Ditra and Kerdi Band, Kerdi Coll makes a waterproofing assembly meeting the German 0-B0 requirement. The requirement is listed in the ZDB German Information sheet. This connection meets the German Building Permit requirements in A1, A2, B and C categories.
Sadly you can not get Kerdi Coll in Canada, nor can you get it in the USA. You can however purchase at product from Ardex called 8+9. We are installing it on a current project and have been putting it through it's paces.
On this project we installed some Noble Seal SIS. It's a sound proofing membrane from Noble Company. It like Noble Seal TS and Noble Seal CIS is a waterproofing membrane much like Kerdi - only thicker.
I used the left over 8+9 and smeared it across an off cut of Denshield. I cut a large hole in a scrap section of Noble Seal SIS and set it into the 8+9 from Ardex. Then I placed a small patch overtop with more 8+9.
I let this dry overnight and then ripped the pieces off. The connection was so strong it left the fleece behind in places.
Then I pinned the corners and fill it with water. The next day not a drop. Not in the morning and not at days end. I left it in the shower niche and monitor it over the renovation.
The following morning no change no leaks.
How we left it at hour 32. We are not back till Monday (October 1, 2012) and it is sitting pretty in the shower's niche.
I really like the product. When applying Ardex 8+9 it rolls and brushes on very nicely. Using it to tape seams with stucco mesh tape and a 3" tapping knife is really good as well.
We used it to cover up a few screw heads we used to support ledger boards. It dries in about two hours before we could tile over the patches.
Product Testing so far has it at two thumbs way up. I don't know what I like more the 8+9 or the Ardex X32 setting material.
Update October 26, 2012
So the test boat feature above worked like a champ. I repeated the test with similar results on another test boat. I then made a test box or cone out of nothing but Ardex 8+9 and some cardboard. I let this set for five days and when I checked it for leaks - nothing! But what I did find was some oily residue of sorts floating on the top of the test box.
Take a look.
I had sent out an email to Ardex earlier asking what the shinny particles are in 8+9 and heard back that the rep did not know but they are in all Ardex's products. These shinny particles have a certain iridescent properties to them and I'm sure they are causing this to happen.
But - this was only one test cone. The cone or box held perfect and I love the product.
So we waterproofed another wetroom here in Vancouver with the 8+9 from Ardex.
JW
When used in install Kerdi to Ditra and Kerdi Band, Kerdi Coll makes a waterproofing assembly meeting the German 0-B0 requirement. The requirement is listed in the ZDB German Information sheet. This connection meets the German Building Permit requirements in A1, A2, B and C categories.
Sadly you can not get Kerdi Coll in Canada, nor can you get it in the USA. You can however purchase at product from Ardex called 8+9. We are installing it on a current project and have been putting it through it's paces.
On this project we installed some Noble Seal SIS. It's a sound proofing membrane from Noble Company. It like Noble Seal TS and Noble Seal CIS is a waterproofing membrane much like Kerdi - only thicker.
I used the left over 8+9 and smeared it across an off cut of Denshield. I cut a large hole in a scrap section of Noble Seal SIS and set it into the 8+9 from Ardex. Then I placed a small patch overtop with more 8+9.
I let this dry overnight and then ripped the pieces off. The connection was so strong it left the fleece behind in places.
Then I pinned the corners and fill it with water. The next day not a drop. Not in the morning and not at days end. I left it in the shower niche and monitor it over the renovation.
Noble Seal SIS set with Ardex 8+9
Pulled it off the next day.
Ripped fleece off the back - incredible strong bond
I cut this hole day one and patched on top.
All with only Ardex 8+9 and a 3" tapping knife
I folded the corners and pinned with screws
The bottom side of the boat.
Top Side. Less than 2" off coverage with the patch
The Boats a float - or vice versa
A Noble Boat
Hour one - September 26, 2012
The following morning no change no leaks.
How we left it at hour 32. We are not back till Monday (October 1, 2012) and it is sitting pretty in the shower's niche.
I really like the product. When applying Ardex 8+9 it rolls and brushes on very nicely. Using it to tape seams with stucco mesh tape and a 3" tapping knife is really good as well.
We used it to cover up a few screw heads we used to support ledger boards. It dries in about two hours before we could tile over the patches.
Product Testing so far has it at two thumbs way up. I don't know what I like more the 8+9 or the Ardex X32 setting material.
Update October 26, 2012
So the test boat feature above worked like a champ. I repeated the test with similar results on another test boat. I then made a test box or cone out of nothing but Ardex 8+9 and some cardboard. I let this set for five days and when I checked it for leaks - nothing! But what I did find was some oily residue of sorts floating on the top of the test box.
Take a look.
 |
| Ardex 8+9 with oil slick??? |
I had sent out an email to Ardex earlier asking what the shinny particles are in 8+9 and heard back that the rep did not know but they are in all Ardex's products. These shinny particles have a certain iridescent properties to them and I'm sure they are causing this to happen.
But - this was only one test cone. The cone or box held perfect and I love the product.
So we waterproofed another wetroom here in Vancouver with the 8+9 from Ardex.
These two pictures where taken at hour 50 of the flood test. Something very weird happened on this test. The test control (for evaporation) was lower than the control for the shower. So the control dish evaporated faster than the shower's wet room. I can only theorize this is because the film blocked the evaporation of water.
I sent off these pictures to Ardex and was told they have never heard of this before. So is it me? The water? What?
I did three more showers at another location and all the same. So here in Vancouver I have five separate flood tests that have generated the residue. It did not happen on the Noble Seal CIS sample so I will try again with a larger swatch and add more 8+9 to the equation.
If anyone has a thought as to why this is happening I would love to hear from you.
I'll continue this product testing and report back when I hear something other than "It's never happened before" from Ardex.
