Different thickness or board in tub area?
+7
I am installing waterproof board in a tub area. I noticed that the waterproof board has a different thickness than the existing drywall at the top of the enclosure. Is this going to create a problem when I tile? should i then tile just to the end of the waterproof board and not onto the drywall? or install the waterproof board all the way to the top to the ceiling?
waterboard is thinner than drywall
drywall thicker than waterboard
Hi Gregory, if you have enough you could double it up, but really, you can tile over uneven surfaces, it works better with smaller tiles or mosaics. I hope these help you out,
https://homeguides.sfgate.com/tile-laying-tricks-uneven-surfaces-27029.html
https://www.middleeast.weber/tile-fixing-tile-grouting/tiling-uneven-surfaces
Will you be covering the opening?! Two ways you can do this. You can tile up to the drywall and use trim tile to cover the difference of thickness. Make sure you seal the gap to waterproof between both. Or you can can install the waterproof board to the ceiling and tile all the way up. A little more work involved. Depends the look your happy with. Another option....waterproof board comes in different thicknesses. If you can return the board and get the same thickness as the drywall then you wouldn't have any problems.
Just thought of another option. You can can install wood strips on the studs to take up the thickness of the waterproof board and make it flush with the drywall. Use pieces of cardboard taped to the studs till the board is flush with the drywall. Then measure the thickness of the cardboard and get some wood strips.
Hi,
To the top of the ceiling and then seal top where the join is.
You should use cement board if you are going to tile instead of waterproof drywall on the areas where you will install tile. You will probably have a thickness difference but you can transition with a bullnose tile edging if it doesn’t match up to drywall in the other area. However I would install the waterproof drywall everywhere that you are not going to install tile. It isn't actually waterproof but it is resistant to water and mildew.
Cement board is for showers and tubs and then you install your tile, etc. Drywall will mildew and mold not great for a bathroom
if the waterboard is smooth you can paint it if you choose to go to the ceiling with it and only tile part way. I wouldn't paint the drywall with redguard unless your going to tile it. Wouldn't be that smooth of a finish. Personally I would keep the drywall, shim out the studs with wood strips, install the waterboard, waterproof the waterboard, tile up to the drywall. Paint the drywall and ceiling with a kitchen and bathroom paint.
Install the waterproof board all the way to the top.