Cement Board Drywall Joint

Roll alkali resistant self adhesive.

Cement board drywall joint.

Cement board is also used in the walls of showers and bath surrounds where there s going to be a lot of moisture. Having the cement board alkali resistant screws joint tape and mortar will get you one step closer to installing the tub surround the right way. Durock cement boards are a type of drywall reinforced with cement for a harder surface. Cement board drywall joint tape qep 7 1 2 in.

Start with the. Cement board is much heavier and harder to work with than drywall but it is almost completely waterproof. At some point along the wall the cement backer board will meet with the drywall used in the rest of the room. The joint between cement board and greenboard is similar to the joint between two pieces of cement board or two pieces of drywall.

Gray cement board tape 2 in. Cement board commonly sold under trade names such as durock hardiebacker and wonderboard is now the standard underlayment used for ceramic porcelain or stone tile laid with thinset mortar adhesive cement board is used for most floor tile and has all but replaced plywood and drywall backer materials for wall tile applications in wet areas like showers and tub surrounds. Drywall is pressed gypsum which is used in modern walls as the surface material. This type of wall material can be finished just like ordinary drywall using joint tape and joint compound.

Instead of using drywall joint compound to embed the tape in the cement board you should use thin set mortar. This joint needs to be flush and smooth in order for the tile or other wall covering to be installed correctly and to create a professional finished appearance.