Water proofing a fountain

[v10ford99]

I have done some fountains but always for a GC and they would ask for Redgard. This one there is no GC so I can use what I want. What have you guys used to water proof fountains. Here are some pics of the fountain just to give you guy a idea of what I got my self in to . I'm going to grind the old water proofing off and replace it. The pencil marks are just to give the H.O. a visual. I have been putting off getting a ring saw but for this one I think I will get one to cut around the 7 turtles they what in the floor.

[K_Tile]

I like Hydroban

[ceramictec]

I like 9235

[Trask]

this is one I would use a trowel applied mem..both above mentioned are great.. I have used loads of Ultraset for stuff like this too..It's messy but it sticks to anything and it works..U.V used to be a concern so you might see if that's still the case.

[Brad Denny]

I'm with Brian. 9235 has worked for us in the past.

[gueuzeman]

Once you cover it with tile, is UV an issue? Then use a roofing product-


gueuze

[v10ford99]

When I use redgard the rep told me to cover it when I leave for the day so the UV does not hit it. But when the it is tiled and grouted no problem with UV

[Bill Vincent]

I'll stick with the two Laticrete products, and my preference is for the 9235 only because of the fabric reinforcement. I know they say that the Hydroban's strong enough that it's not needed, but as long as I have the choice, I'd rather use it.

[Jhereg]

vote for hydroban here. when dry, it'll leave you a nice green inside the fountain, not red or black. plus i just think it's the best of all 3. personal opinion.

[tilelayer]

My laticrete rep told my hrydroban is supposed to be the equivalent of 9235 but no mesh so its easier to use, I have a 1 gallon complementary pail to try just have been busy with kerdi and mud to play with it.

[Jhereg]

yeah, they say no mesh needed, but still say its always a good idea to use something for the changes of plane, inside corners etc. I've been using it damn near everywhere. Getting a decent price buying it 5gal at a time.

[Trask]

I agree with Chad..what could the fabric hurt..at least to strenthen the plane changes.

[bpmcman]

Hey guys,

Just for the record, Hydroban states it'll bridge 1/8" gaps or less without the need for fabric. Any gaps >1/8" should be filled, not bridged by a fabric/waterproofing combination.

That last part also holds true for 9235. You won't find anywhere that Laticrete recommends bridging gaps >1/8" with its waterproofing products. Preferably, pack in some thinset or grout to allow the membrane to stick to.

For Alex's fountain job, I actually like the HBan a little more-- it'll bond directly to the PVC drain and can be flood tested in 24 hours (new version rolling out this year will allow for FT in as little as 2 hours), limiting the amount of time the membrane is left exposed. Use of fabric is optional-- your preference.

[Tilehelperdan]

Hey Brian, how much does one of them 5gal pails of hydroban weigh? I was on a job a while back where we used 36 of them buggers and I had to unload the truck by hand one at a time. By the end I swore they had to be 100 pounds.

[Bill Vincent]

Hey Brian--

Nice to see you in here!

I know the Hydroban has been tested and is supposed to be strong enough. it's just tough to get past the no reinforcement part of it. I guess it's an old dog/ new tricks sort of thing. Do me a favor-- Don't discontinue the 9235 until after I retire!