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Particle board should not be used behind tiles for the reasons stated. I suggest removing all tiles and wallboard material down to the studs on that wall. Insulate between the studs, put up cement backer board and re-tile the area in question. . This is not a do-it-yourself type job. Hire a professional.

Best bet to purchase a product called Dragon Board ! It is a MGO Board that can survive the test of water. It has no ability for mold to grow. The board comes in different thickness and is a bit costly but the end product is a high performance wall ! Good Luck!

sorry to say...sounds like the board behind the wall is bad...and if the tiles are popping out you need to replace the board/drywall behind the tiles than replace the tiles with new grout and make sure its sealed. otherwise you are just bandading the problem

If the problem is a deteriorating wall behind the tile, you're going to be looking at a tear out of the tile surround and wallboard behind it, and replacing this whole section. The most budget-friendly option would be to replace it with a new fiberglass surround, which properly sealed at the tub will keep water where it should be and stop seepage to the wall behind. If you want to replace with tile, be sure the contractor uses good waterproofing techniques and the grout is properly sealed to prevent water damage.

From the description, your problem sounds like it will require the help of a professional carpenter. Older homes and some newer ones had sheetrock that was not moisture resistant.
The tile grout has cracked and let moisture get into the wall board (sheetrock), if not properly fixed this will lead to mold and major wood rot. Newer shower or tub areas are constructed using advanced water and vapor barrier systems, and topped with a product called Hardy Board that prevents such seepage.

The area in question will need examined, likely removed down to the bare framing, and reconstructed using several types of water/moisture barriers. New insulation on the exterior wall, a vapor barrier to prevent condensation, and Hardy board will add another layer of protection when properly installed. The Hardy Board will need finished and primer-coated to accept the new tiles. Once again, this is a brief outline and without proper inspection, this type of problem is difficult to diagnose and remedy.
I urge you not to postpone having this fixed, being on the 3rd floor can only mean more damage to the 1st and 2nd floors if this is not fixed immediately.

Tom Deaton DeatonConstruction.com
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The wall needs to come down and be reconstructed with a cement board that is resistant to water. By continuing to caulk the board (probably a gypsum sheetrock) will continue to absorb water and promote mold growth. You can cut out the part that is affected and re-tile with a complimentary tile. It is a bit of a messy job, but you can probably do it yourself!

Most bathrooms the code is to have green board behind the tile and on the ceiling above the shower! You could try bath fitter, which is a plastic preformed shower that slips over the existing! I know there are companies that exclusively do this type of work!

You need to remove the wall and tile and put the proper backerboard on and retile. If you are looking for a temporary inexpensive resoulution you can reglue some of the tiles and install a fiberglass wall surround directly over the tile. I emphasize this is a temporary solution; perhaps a year or two; although I have had this repair last upward of 5 years.. 9ionop

You need to install a substrate that is sound such as a cement board. Then we would also set the tile with ultra set as this will waterproof the board. If you don't waterproof the substraight it can pass moisture and mold on the backside. Caulking is not the answer just the way to finish the corners. If the job is done correctly any amount of splashing will not effect the tile work. Another option would be to use a cultured marble wall panel

the wall should consist of certain materials , tile then a concrete board( durarock or hardy board) then a vapor barrior then the insulation on the exterior wall then the brick to outside.
If the insulation in the wall has a vapor barrior of its own then the vapor barrior on the wall should have slits in it (only on the exterior wall). And a nother issue is that i have seen greenboard used in these areas or a product called dens armor, which is unacceptable because they are not waterproof, and will fail once wet and tiles will fall off. only materials listed above are acceptable.you will have to inspect existing material to see what you have going on.

Hire a professional tile installer to redo it all properly, or install a new tub surround after removing all the bad materials

Stat Home Inspections has the correct answer, period. Hire a pro to do it.

www.designsbygolden.com

Install a water-resistant wall called duro rock and is guaranteed for life if installed to manufacturers specs.

Let area dry out,. try to use an alternate bath room during repairs. Reset any tile that has fallen down with thin set, then regrout tile. Area above tile should be painted and calked next to tile area.

You need to remove the tiles and whatever is behind it and rebuild it. Install new tile backer and tiles. Don't forget to seal it.
I would recommend finding a professional to do it.
Good luck! www.aadesignbuild.com
Links: www.aadesignbuild.com

MissD
The particle board is no good around water, this needs to be torn out and replaced with cement board and then retiled and grouted
hope this was a help! thank you .

Take down interior tile and wall. Replace with water resistant wall and install new tile.

www.merchantcircle.com This is a properly detailed job. Top quality work is the only way we do any project. [img]http://www.merchantcircle.com/business/Construction.by.Design.Inc.804-883-6390/picture/view/2343600[/img]
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