Using Large Format Porcelain Tile On A Shower Floor (Envelope method)
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- Опубликовано: 7 сен 2024
- Large format porcelain tile, if suitably rated for wet areas (see dynamic coefficient of friction information for wet areas), can be installed on shower floors if you "fold" the tile in such a way that allows for the proper pitch and geometry in a shower space.
Imagine and map a line between the four corners of your drain grate, be it a line drain or square traditional drain, to the four corresponding corners of the shower base. The lines this makes are your relief cut lines for the tile. Cut these carefully to follow the pitch of the sloped shower base, and voila, an envelope pan folded to allow for large format tile on a shower floor. It is a common misconception that only small format mosaic can be used on shower floors. Typically this is said because larger format tiles will create lippage since they cannot conform to the conically shaped pan, or because the abundance of grout joints with mosaics is safer for a wet area. If the WDCOF (wet dynamic coefficient of friction) is high enough, tile is considered safe for wet areas according to the TCNA. This is an advanced method, and great care and planning are required for a clean outcome.
I’m getting ready for a shower/bath remodel. I mentioned to my contractor that I was considering using 30x60 LFT that’s rated for patios/shower floors. Do you think I’d be ok to use it even without ditra heat? He seemed a little hesitant but I think I could convince him. I’m just teetering on finding a smaller tile (easier and more straightforward) vs going for the envelope method.
Where do you find tiles with proper grip rating?
Beautiful,last week I installed 18 by 32 on a backsplash in same color,what size are those?
24"x48
@@NathanTilesTheWorld big boys,nice,can't wait to get a customer that wants to do that
These tiles are getting Mad largre!! Very cool looking Nathan!! Hoping all is well Bud, Dirty Jersey out!!
Where did you get the idea to do this? The internet or real life?
What do you mean ?
@@j.w.r.i2910 well in my experience, envelope cut is in internet thing, I talk with General Contractors and tile houses and plumbers and been on jobs for well over two decades and have never seen or heard of the envelope cut unless it was the internet. One of the main reasons I do not like it is that it holds a lot of moisture underneath big tiles and they do not dry out underneath that that's why shower pan materials usually on sheets to Contour with the pitch and also so it can dry out
.when you cover the shower pan with big tiles like that you're trapping air & water that's never going to get out of there and harder to dry out, because there is voids underneath large-format tile on a pan, even if your tile correctly, everyone still has a little void every now and again 80% dry 95% wet coverage. Also if you're doing that you got to make sure that it is a matte finish and even matte finishes sometimes it can be slippery, another reason why there are grout joints besides the Contour and getting the air out, is that your feet Grip on the grout joints. When you have a 16 grout joint or something a little bit bigger with a huge large-format tile on a shower pan, it can be slippery.
The geometry of the pan is critical with envelope pans. It's not a conically shaped. They do not trap moisture if they are properly set, and not over a water-in water-out system. 95% coverage for wet areas is correct. There is a metric for the grip of the glaze and whether it is wet area appropriate or not. Its the DCOF or WDCOF. The first envelope pan i did was in 2015.
You can keep all the grout joints you want. 😂 That's an old line that people have been saying for years and years, but it doesnt mean its a bulletproof method, or the only way. Things have really changed as far as methods go over the last 15 years. Most clients are thrilled when i let them know there is a method which eliminates all the grout joints.
As far as an internet thing goes, i dunno what to tell you. I've never tiled anything on the internet. You sound a little salty if I'm being honest. I hope that's not the case.
Also, there is ditra heat in this shower pan, which will actively drives moisture out.
@NathanTilesTheWorld good point on the ditra heat, I'm not going to argue with you, I agree that it looks good. I just worry about water and it goes against every single thing that most tile guys are taught in the field. Like I said I'm not exaggerating not one general contractor not one tile house not one tile guy or plumber in 24 years of tiling have I ever seen that on a real job site. Have a great day..... also there should be no cone shape whether it's 12 x 12 sheets or big tiles like you're doing here oh, it's a straight line quarter inch per foot so anybody who's doing a cone shape floor is doing it incorrectly!