How To Install Cement Board On Concrete Wall

Keep the fasteners 3 4 inches from edges and 2 inches from corners.

How to install cement board on concrete wall.

Make a rough plan for the cement board sheet layout based on the area to be covered and the size of the cement board. Secure the cement board sheets to the studs with either 1 1 2 inch hot galvanized roofing nails driven with a hammer or 1 1 4 inch cementboard screws driven with a drill and driver bit. Use a wood bit to drill pilot holes through the ledger board. For walls 6 o c.

Fit ends and edges of. The extra mortar will make it easier to. Space fasteners 8 o c. Space the fasteners 8 inches apart on walls and 6 inches apart on ceilings.

Add the correct ratio of dry thinset mortar and water in a bucket following the manufacturer s mixing instructions. Technically cement board can be laid over a concrete slab as the base for a tile installation. How to secure concrete boards to a concrete wall 1. Use the flat side of your notched trowel to fill the joints between the backerboard sheets.

Because cement board fasteners may protrude through the plywood base when 1 4 cement board is used 1 2 or 5 8 cement board is preferred in this application. Install the first sheet. Smooth the mortar so it extends about 1 1 2 inches on each side of the joint. Mix the thinset and water combination with either a paint stir stick or a paint mixing paddle attached to a power.

Temporarily secure the ledger board to the correct location against the concrete wall using concrete screws or temporary supports. Next use a concrete bit to drill into the concrete wall. A better solution is to prepare and resurface the concrete slab so that it can accept thin set adhesive or a mortar base onto which to lay tile. But doing so is a very laborious time consuming process that is likely more trouble than it is worth.