opinions ? comments ?
Yeah John,JohnFRWhipple said:As for the slope in a pre-formed shower pan I believe 1/8" per foot is allowed. I think it is only a custom made pan where 2% (1-50) slope is required.
Reducing pan flex would be the key to a successful installation and insuring that the pan's are supported properly around the drain connection and perimeter.
I looked at the Tile ready pans last November at the Health Care Design Conference and didn't like them at all. With the AKW pans they spec a product from Mapei not familiar to most here in North America.
If anyone wants to talk with an expert in these types of shower installations it is best to contact Shannon Melvin.
You can reach him here;
Shannon Melvin
715-743-2771(o)
715-797-4008(c)
715-743-2738(f)
shannon@woodwright.com
Shannon has built hundreds of showers with his AKW pan and is a tradesmen like us. Worth an email if you wanted to here from an expeirenced installer.
JW
All the shower floors are already built 3" lower than the rest of the floor.Shower floor stone is 3/8" where the floor stones are 1/2" and thin set difference due the trowel, I think it will be lower slightly close to 1/4", thanks for the tip.The function of the drain will not change if you place it over the existing location as shown in your drawing.
You may find that pushing the drain further from the entry is hard to achieve the pitch required. Chances are you will be upgrading the framing some what to allow a drain to be set low enough for a barrier free and then the plumber will need to modify the drain pipe in some way.
We like to install them tight to the bench more so for looks than anything. If the couple is older it may be that a center location is easier for them to clean the drain.
Consider a slight barrier at the entry maybe 3/8" to prevent a little dam. Many people using a hand held spray jet can fire water towards the entry and this little dam can help keep water in your shower where it belongs.
What type of drain are you thinking about?
JW