Jump to content

Waterproof porch floor--advice?


Recommended Posts

I'm getting ready to build a house for myself which will incorporate a fairly sizable screened porch (400s.f. or so) with a garage below. I'm looking for suggestions as to the most budget friendlybut truly effective way to waterproof the floor. Ideally, I would like a tile floor surface or something that looks more "finished" than what I'd have simply putting down pressure-treated wood on sleepers above a membrane roof. The area will really be more like an outdoor living room than a more simple, rustic screened porch. I'm not only concerned with water that might blow in, I want to hose the thing off to deal with pollen season, etc. I have looked at some of the Schluter products online but don't have any personal experience with any of them. Any products/techniques that ya'll have seen that work well? Or products to avoid?

TIA

Link to post
Share on other sites

It can be done but it is all in the details.

Schluter has some of what I think are the best product for waterproofing and drainage systems for balconies and roof top decks. Take a look at their site. Also be careful with what you put on the surface, ceramic/porcelain tile does not do well in areas that freeze pretty good.

http://www.schluter.com/142.aspx

Link to post
Share on other sites

Yes, I got a couple of those in my history too. Guy's don't get mortar beds right in showers nowadays, so it's unlikely they'll get it done right anywhere.

Troba and Troba Plus are both good and we've had them work here @ the 42nd parallel. I wouldn't trust anything with a grout line if there's freezing; we've done loose fit tiles and stone, ungrouted. They hose down and drain just fine.

I still wouldn't know what to do until the OP indicated specifically what floor they wanted.

Link to post
Share on other sites

Thanks for the replies. As I stated, I would prefer tile. I need to be able to move furniture around, not worry about staining anything, etc. Freezing isn't a big problem in central Arkansas but in any case I'm well aware of the need for proper tile selection for exterior use. I looked into Duradek and they make a product to use with tile. Unfortunately, there are no licensed applicators in the state. Looks like I'll be looking more into the Schluter products.

Link to post
Share on other sites

Thanks for the replies. As I stated, I would prefer tile. I need to be able to move furniture around, not worry about staining anything, etc. Freezing isn't a big problem in central Arkansas but in any case I'm well aware of the need for proper tile selection for exterior use. I looked into Duradek and they make a product to use with tile. Unfortunately, there are no licensed applicators in the state. Looks like I'll be looking more into the Schluter products.

If you want tile, then definitely use the Schluter products.

Link to post
Share on other sites

It looks like Kerdi for exterior use. Fuzzy membrane, waterproofing layer directly under tile. Should work like Kerdi. Troba is more an active drainage plane material; big airspace and waterproofing under the drainage plane.

Link to post
Share on other sites

Just to be clear, The Duradek folks do make a product for use under tile:

https://www.duradek.com/tiledek/

Thanks. I hadn't seen that before.

It'll probably work fine in a non-freezing climate. If your deck is likely to see freezing temperatures, you'll need a drainage plane like Troba.

In my climate, exterior tile work is very problematic. We have lots of folks from southern Cali move up here and install outdoor tile, which fails miserably. Gotta have drainage if it's going to freeze.

Link to post
Share on other sites

As timing plays out, yesterday afternoon a roofing contractor came by to give us a pitch for his services. Seems like a good guy. He is also a certified Duradek installer, so he had his samples and handouts for Duradek.

Why would anyone go to the work and trouble of building a cool outdoor space and then layer it with stuff that makes it look like a 60's ranch house kitchen?

Soulless. Empty. Embarrassingly nasty looking.

Link to post
Share on other sites

Hey, sixties ranch houses are huge right now. People can't get enough of them.

The Duradek membranes look exactly like commercial vinyl flooring and are, perhaps, the definition of soulless. But they work. People who've had fancier looking waterproof decks fail and destroy their interior finishes are perfectly fine with a soulless floor covering that doesn't leak.

In particular, if it's a retrofit application with very little clearance between the deck surface and the door threshold, there are few other products out there that can work. Most of them require too much thickness.

I didn't realize that it was still out there, but if anyone is interested, here's the power point from a presentation that I did on the topic in 2009: http://www.oahi.org/waterproofdecks.pdf

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...