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. Roll alkali resistant self adhesive. 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. Extra large grouting cleaning and washing sponge 3 pack x 15 16 oz. Cement board is also used in the walls of showers and bath surrounds where there s going to be a lot of moisture.

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. Start with the. Drywall is pressed gypsum which is used in modern walls as the surface material. 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.

Cement board is much heavier and harder to work with than drywall but it is almost completely waterproof. 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. Joint compound is used to help provide a seal between the durock panels and to fill the depressions left by either nails or screws during installation.

Durock cement boards are a type of drywall reinforced with cement for a harder surface. This type of wall material can be finished just like ordinary drywall using joint tape and joint compound.