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FAQ

This building was previously a school building, with cement block walls..I need to know if I need backer board, or do I just need to fill in the low spots to make the wall flat and level? Also, what kind of thinset do I need for clear glass mosaics?

You don t need a backer board.. As long as the block is solid and no cracks ( they need to be treated specially) you can go right over the block with a few precautions. The block needs to be clean and smooth. No mortar from the joints and stick out. If the walls are unpainted ( and clean) you can go over them with WHITE and white only thin set.There is no such thing as colored or tinted thin set.And glass tiles call for a strong latex modified thin set If the walls are painted ( and clean) you can use a mastic or the special thin set. Fill in the mortar joints with the adhesive you use. Mastic cannot be used if this is a wet area or going to be a wet area. Any questions you can e mail me through my avatar and check my qualifications there. GL

i have an old cement wall house, i have tar paper on the outer walls and plan on putting 1 or 1 1/2 thick ridge insulation on the walls. These are above grade walls not basement.My question is do i have to vapor barrier the walls or just tape the seams of the foam insulation.thanks in advance

If you already have tar paper (roofing felt, I presume), thats a vapor barrier. You don't need another. You can caulk the joints between the boards if you'd like.

Does the cement board go over the lip of the tub, or does it sit on that lip?

it goes on top of that lip not over it tile goes over the lip make sure you have a gap between the tub and tile when setting a spacer will do. silicone the bottom row of tile to the tub after the tiles have been set and grout the rest I caulk the cement board to the lip when I install. Its over kill but adds a layer of safety Good luck

Cement fiber pressure plate, fiber cement pressure plate (FC board), cement asbestos board, mineral wool decorative plate. Are these all the same? Where are they used?

Product Specifications: 1200 * 2400 * (4-30) mm, 1200 * 1200 * (4-30) mm 1220 * 2440 * (4-30) mm Other specifications can be processed, custom.

how can i put tile in my bathroom using thin cement board.so my bathroom floor can be even with my living room floor.

I guess I've been on the planet Mars far too long? Blue Board?? On a floor? Tile underlayment?? I tile every day of my life, even ceilings, and never heard of either method suggested. Not knowing at all your current bathroom substrate, or the substance of the LV room floor, NO you cannot find concrete backer board thinner than 1/4. In fact I suspect you'd have a hard time finding the 1/4. 1/2 is standard. I wonder what finish the Bathroom floor is currently? Certainly the Marble strip for a transition is also standard, often between tile and tile. There are transition moldings sold for the purpose of going fom tile to carpet, or tile to hardwood, even pancake, overlaps. Steven Wolf Just my two sense

I'm pulling up the linoleum and replacing it with ceramic tile, 12x12. it's a small bathroom, on the 2nd floor.Under the linoleum is wood. Do i need to lie down cement board before I put the mortar mix down? Or will it be fine to put tiles on the mortar mix on the wood?

You should have a backer of some type. There are a number of options available now so the choice is yours and dependant on the circumstances of your project regarding which one would be best. While many people do install tile directly over a wood sub floor that does not make it right. Tile has considerable permanence. It is somewhat involved to properly install and difficult to remove if the installation is not done correctly. The final outcome of a tile installation, like so many other projects depends largely on the preparation. So many people skip many of the necessary early steps that really do not cost that much extra but make a huge difference on the outcome. Use a backer system. G. Borders Home Repair, Improvement, & Handyman Service Plano Home Repair

nan

Listen to bascatman. The greenboard works great for damp areas.

I just completely gutted my bathroom down to the wall studs and original plywood sub-floor. Which do I install first -- the new bathtub or the cement backer board on the floor? The original tile floor was over an inch thick. The new tub will be fiberglass, and I plan to put ceramic tile around the tub area as well as the main floor.

If you got the standard enamelled metal tub you will see that the top edge may have screw holes already in it. I don't think fiberglass was much different- maybe no holes and you have to drill them yourself as the tub is in place This is screwed to the studs. Can't see studs behind cement board.(Don't care if you have better than 20:20 vision) CB is just a board for tiling onto. Before that was Greenboard basically gypsum board with a waterproof coating. Before that it was just gypsum board. The Tile& grout is the waterproof layer. Many houses were done on gypsum board. Mine has been done that way because neither Greenboard or Cementboard were not invented yet. Mine has been up for 35 years not a problem at all.