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Posted by Al on October 30, 2005, 9:28 pm
I am having my shower torn out and completely rebuilt.
The trademan who is doing this (and who has done exceptional work for
me in the past) has installed a PVC liner 7 inches up the sides of the
shower and over the curb.
However, when he installed backer board over the PVC liner, he
installed screws into the backer board that were about 1.75 to 2.00
inches above the bottom of the liner where it rests against a sloped
subfloor, piercing the PVC liner at that level behind the backer board.
He intends to lay down a layer of mortar on top of the PVC liner to
create a sloped surface to lay the floor tile on. Thus, the height of
the screw holes (and the punctures in the PVC membrane) will be even
closer to the finished shower floor by the time the tile is installed.
This trademan says that he installed a bead of caulk to prevent the PVC
liner from leaking where the screws penetrated the liner, but I am
still extremely concerned that integrity of the PVC shower pan has been
compromised by the screws that pierce it.
It is my understanding that the PVC membrane should NOT have been
punctured at a point so low to the bottom of the pan.
I would also like to know what would happen if the PVC membrane on top
of the curb is pierced by screws when backer board is installed on top
of the curb. Will this create create a potential for leaks as well?
If screws should not pierce the PVC vinyl membran, what is the
appropriate way to fasten backerboard over a PVC liner? Does one just
not fasten the backer board to the wall at the the bottom or what?
Am I justified in being concerned about the potential for leaks?
Please respond ASAP as the trademan has not installed the tile yet, but
plans on doing so very shortly.
As I wrote above, this trademan has done superb work for me in the
past, but this is the first PVC shower pan he has ever installed and
it's possible he may not be fully aware of all the details to follow in
installing one that is absolutely leak proof.
Thank you.
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Posted by hwm54112 on October 30, 2005, 10:21 pm
The potential for leaks where nailed 2" up is a real concern if the
water does not drain out completely. Those holes will be less than 1/2"
above floor. How did he get a bead of caulk under the backer board?
Sounds like B.S. Make him replce the liner as there should be no holes
in it that low. The holes on the curb shouldn't be a concern because
they will never be submerged, I hope.
--
hwm54112
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Posted by on October 31, 2005, 1:05 am
>I am having my shower torn out and completely rebuilt.
>The trademan who is doing this (and who has done exceptional work for
>me in the past) has installed a PVC liner 7 inches up the sides of the
>shower and over the curb.
>However, when he installed backer board over the PVC liner, he
>installed screws into the backer board that were about 1.75 to 2.00
>inches above the bottom of the liner where it rests against a sloped
>subfloor, piercing the PVC liner at that level behind the backer board.
>He intends to lay down a layer of mortar on top of the PVC liner to
>create a sloped surface to lay the floor tile on. Thus, the height of
>the screw holes (and the punctures in the PVC membrane) will be even
>closer to the finished shower floor by the time the tile is installed.
>This trademan says that he installed a bead of caulk to prevent the PVC
>liner from leaking where the screws penetrated the liner, but I am
>still extremely concerned that integrity of the PVC shower pan has been
>compromised by the screws that pierce it.
>It is my understanding that the PVC membrane should NOT have been
>punctured at a point so low to the bottom of the pan.
>I would also like to know what would happen if the PVC membrane on top
>of the curb is pierced by screws when backer board is installed on top
>of the curb. Will this create create a potential for leaks as well?
>If screws should not pierce the PVC vinyl membran, what is the
>appropriate way to fasten backerboard over a PVC liner? Does one just
>not fasten the backer board to the wall at the the bottom or what?
>Am I justified in being concerned about the potential for leaks?
>Please respond ASAP as the trademan has not installed the tile yet, but
>plans on doing so very shortly.
>As I wrote above, this trademan has done superb work for me in the
>past, but this is the first PVC shower pan he has ever installed and
>it's possible he may not be fully aware of all the details to follow in
>installing one that is absolutely leak proof.
>Thank you.
Geezus Keyrissttt ----> Calm down !!!!!!!!!!!!!!!
It's only a little water... Not hurricane Katrina.
So a few gallons of water run down under the shower, big deal.
The worst that can happen is the ceiling underneath will collapse, the
floor will rot under the shower, and some day you will fall thru the
floor into the room below, which is only an 8 to 10 foot drop. Not a
big deal when you consider how some people have fallen 3 or more
stories in recent hurricanes, and some of them even survived.
Besides that, the drain pipe will likely remain intact when you fall,
so you will have that to grab on the way down.
Trust your trademan, he's the expert, and it's only your money....
If however, this really bothers you, put some duct tape around the
bottom of the walls before he finishes the job. Duct tape holds the
world together so you can feel much safer, knowing duct tape came to
the rescue, and if the floor does collapse, the duct tape will hold
tight and strong, and save your life.
Rondo
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Posted by No on October 31, 2005, 9:39 am
Its fine. No worries. Just ask for a guarantee from your man. Say, 1
year, no leaks OR tear it out and attach 3" further up wall. You man
will go with warrantee. Get it in writing. W/o seeing it, but as you
described it, there will be no issues if the tile and grout are done
properly.
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>The trademan who is doing this (and who has done exceptional work for
>me in the past) has installed a PVC liner 7 inches up the sides of the
>shower and over the curb.
>However, when he installed backer board over the PVC liner, he
>installed screws into the backer board that were about 1.75 to 2.00
>inches above the bottom of the liner where it rests against a sloped
>subfloor, piercing the PVC liner at that level behind the backer board.
>He intends to lay down a layer of mortar on top of the PVC liner to
>create a sloped surface to lay the floor tile on. Thus, the height of
>the screw holes (and the punctures in the PVC membrane) will be even
>closer to the finished shower floor by the time the tile is installed.
>This trademan says that he installed a bead of caulk to prevent the PVC
>liner from leaking where the screws penetrated the liner, but I am
>still extremely concerned that integrity of the PVC shower pan has been
>compromised by the screws that pierce it.
>It is my understanding that the PVC membrane should NOT have been
>punctured at a point so low to the bottom of the pan.
>I would also like to know what would happen if the PVC membrane on top
>of the curb is pierced by screws when backer board is installed on top
>of the curb. Will this create create a potential for leaks as well?
>If screws should not pierce the PVC vinyl membran, what is the
>appropriate way to fasten backerboard over a PVC liner? Does one just
>not fasten the backer board to the wall at the the bottom or what?
>Am I justified in being concerned about the potential for leaks?
>Please respond ASAP as the trademan has not installed the tile yet, but
>plans on doing so very shortly.
>As I wrote above, this trademan has done superb work for me in the
>past, but this is the first PVC shower pan he has ever installed and
>it's possible he may not be fully aware of all the details to follow in
>installing one that is absolutely leak proof.
>Thank you.