How much backer board do i need

Prepare the room by removing any old flooring. Apply a thin layer of thinset adhesive to the sub floor where you are going to put the backer board. Use the trowel for this. Make sure the entire sheet will have adhesive on it. Press the backer board onto the adhesive. Nail or screw the backer boards to the sub floor, so that the backer boards won't move at all. Make sure you use corrosion resistant screws or nails.

Cover all the seams between the boards with fiberglass tape [source: Do It Yourself ]. Sarabeth Asaff has worked in and has written about the home improvement industry since She has written numerous articles on art, interior design and home improvements, specializing in kitchen and bathroom design.

A member in good standing with the National Kitchen and Bath Association, Asaff has working knowledge of all areas of home design. By Sarabeth Asaff Updated December 14, Related Articles. Cement board on walls also uses the same techniques, but in this case, there is no layer of mortar behind the cement board as it is screwed directly into the wall studs. Consult the cement board manufacturer for recommendations on using a moisture barrier between the board and the wall studs.

This may be thick plastic sheeting or another type of water-resistant membrane. Actively scan device characteristics for identification. Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products.

Press the boards into the mortar and hold them firmly for a moment. After pressing the boards into the mortar, screw them in with screws made especially for cement backer board installation. Just as you would with drywall, make sure the screw heads are slightly depressed below the cement backer board surface. Cover and mortar the seams with fiberglass seam tape. Actively scan device characteristics for identification.

Use precise geolocation data. Select personalised content. Create a personalised content profile. Measure ad performance. Select basic ads. Create a personalised ads profile. Select personalised ads. Apply market research to generate audience insights. Measure content performance. Develop and improve products. List of Partners vendors.