Designing Kitchens and Bathrooms - whirlpool, thinset bed, poly over AND under?
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eva01
03-13-08, 06:14 PM
I'm almost ready to put the whirlpool in and I just want to make sure I'm doing the mortar bed right. I know you're suppose to put plastic sheeting over the bed, but I remember reading a post on here where someone put a sheet UNDER the bed right over the plywood too.
He mentioned it works well if you have to remove the tub, and don't want to rip up the plywood. I thought it would be a great idea, except I'm not sure about it. Wouldn't the thinset need to stick the plywood, to make sure the tub doesn't move around? It seems like with poly over and under the thinset, there's potential for sliding? I would like to do it this way though if there's not a problem.
He mentioned it works well if you have to remove the tub, and don't want to rip up the plywood. I thought it would be a great idea, except I'm not sure about it. Wouldn't the thinset need to stick the plywood, to make sure the tub doesn't move around? It seems like with poly over and under the thinset, there's potential for sliding? I would like to do it this way though if there's not a problem.
Bud Cline
03-13-08, 07:04 PM
You DON'T USE THINSET for this. You use "sandmix". Plastic on top and bottom is fine and "no", it doesn't have to stick to the subfloor.:) The tub only has to nest in the fresh mix.:)
eva01
03-14-08, 01:49 PM
sandmix? don't remember seeing that, is there another name i'm looking for?
HeresJohnny
03-14-08, 01:57 PM
Sand/Topping Mix:)
connie
03-14-08, 05:06 PM
Guys, do you have to let that bed cure for a while before you put the plastic on top?
Bud Cline
03-14-08, 07:30 PM
Guys, do you have to let that bed cure for a while before you put the plastic on top?
NO!
You want to stab the unit immediately so that it can nest into the fresh mix and the features (if any) will mold themselves into the mix. Once the tub is in place stay out of it for 24 hours while the mix hardens.:)
NO!
You want to stab the unit immediately so that it can nest into the fresh mix and the features (if any) will mold themselves into the mix. Once the tub is in place stay out of it for 24 hours while the mix hardens.:)