Next use a concrete bit to drill into the concrete wall.
How to attach cement board to concrete wall.
Smooth the mortar so it extends about 1 1 2 inches on each side of the joint.
How to secure concrete boards to a concrete wall 1.
Determine where you will install furring strips along your block walls.
Use a wood bit to drill pilot holes through the ledger board.
Screws are the only logical way to do this but it would entail an extremely tedious and time consuming process of drilling pilot holes before sinking the screws.
Thin set alone will not help the cement board stick to the concrete slab.
The extra mortar will make it easier to.
All the insider information on how to build and waterproof a.
Add the correct ratio of dry thinset mortar and water in a bucket following the manufacturer s mixing instructions.
Mix the thinset and water combination with either a paint stir stick or a paint mixing paddle attached to a power.
The strips should be about 16 to 24 inches apart and fall in the center.
Anyone can enjoy the benefits of a cement board shower system if you follow these 3 easy steps.
Trim each strip with a circular saw to match these measurements.
Measure the height of the wall from floor to ceiling.
Use the flat side of your notched trowel to fill the joints between the backerboard sheets.
Install your sleve anchors.
Some cement board products may not require the underlying membrane if the seams are properly waterproofed in such wet areas never install cement board directly over drywall or green board.