Cement Board Drywall Joint

Instead of using drywall joint compound to embed the tape in the cement board you should use thin set mortar.

Cement board drywall joint.

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. Durock cement boards are a type of drywall reinforced with cement for a harder surface. Cement board is much heavier and harder to work with than drywall but it is almost completely waterproof. Drywall is pressed gypsum which is used in modern walls as the surface material.

Roll alkali resistant self adhesive. Gray cement board tape 2 in. The joint between cement board and greenboard is similar to the joint between two pieces of cement board or two pieces of drywall. At some point along the wall the cement backer board will meet with the drywall used in the rest of the room.

This type of wall material can be finished just like ordinary drywall using joint tape and joint compound. Cement board drywall joint tape qep 7 1 2 in. Start with the. 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.

We utilized the same thin set that will be used to attach the tiles. Cement board is also used in the walls of showers and bath surrounds where there s going to be a lot of moisture.