Designing Kitchens and Bathrooms - installing tile over previously carpeted bath floor
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01-19-01, 10:33 AM
Hi!
I hope that you can help...the house we recently purchased had carpeting in the master bath!! We will be installing tile this weekend if possible...
My question is that after removing the carpeting and the foam beneath we have found some surface black mold around the base of the tub and the entry to the shower on the wooden floor boards or subflooring(I'm not sure what it is...it is not solid wood, but looks like pieces of chipped wood pieces pressed together...I know what particle board is and this is not particle board). It doesn't look like water rot yet. So in light of this "discovery", what should we do? Should we:
1) treat it with a bleaching solution, let dry and continue with the installation?
2) replace the infected floor board? By the way, what kind of flooring does it sound like?
3) Also, is it necessary to install a cement board kind of thing on top of this wood flooring before tiling?
Thank you ever so much for your help in advance....As you can probably tell I am no professional! Thank you!
I hope that you can help...the house we recently purchased had carpeting in the master bath!! We will be installing tile this weekend if possible...
My question is that after removing the carpeting and the foam beneath we have found some surface black mold around the base of the tub and the entry to the shower on the wooden floor boards or subflooring(I'm not sure what it is...it is not solid wood, but looks like pieces of chipped wood pieces pressed together...I know what particle board is and this is not particle board). It doesn't look like water rot yet. So in light of this "discovery", what should we do? Should we:
1) treat it with a bleaching solution, let dry and continue with the installation?
2) replace the infected floor board? By the way, what kind of flooring does it sound like?
3) Also, is it necessary to install a cement board kind of thing on top of this wood flooring before tiling?
Thank you ever so much for your help in advance....As you can probably tell I am no professional! Thank you!
camachinist
01-19-01, 12:47 PM
Couple of things...
Try piercing a suspected area with a screwdriver blade...is the wood firm, with just a slight dent or is it mushy?
Sounds like you have OSB...oriented strand board...on the floor...
When you step on the floor near the tub and shower (toilet too), does it feel firm underfoot? It'll have to be for tile...
If the floor is sound and time is a factor, I'd treat the mildew with bleach or a commercial fungicide, dry the area (I've used a hair dryer in a pinch), install some Hardibacker or other cement backer board with screws and go to town.
Hopefully a tile setter will fill you in on the details regarding thicknesses, screw spacing, adhesives and the like...
If you're not sure about the soundness of the subflooring, take a deep breath, back the schedule up a bit and take a hard look at it....there are correct materials, thicknesses and orientations for a sound tile subfloor and it's best to do it right the first time...
Good luck on your project...I can't wait to tackle our bathroom floors...
Pat
Try piercing a suspected area with a screwdriver blade...is the wood firm, with just a slight dent or is it mushy?
Sounds like you have OSB...oriented strand board...on the floor...
When you step on the floor near the tub and shower (toilet too), does it feel firm underfoot? It'll have to be for tile...
If the floor is sound and time is a factor, I'd treat the mildew with bleach or a commercial fungicide, dry the area (I've used a hair dryer in a pinch), install some Hardibacker or other cement backer board with screws and go to town.
Hopefully a tile setter will fill you in on the details regarding thicknesses, screw spacing, adhesives and the like...
If you're not sure about the soundness of the subflooring, take a deep breath, back the schedule up a bit and take a hard look at it....there are correct materials, thicknesses and orientations for a sound tile subfloor and it's best to do it right the first time...
Good luck on your project...I can't wait to tackle our bathroom floors...
Pat