Screws Into Hardie Board Floor
Cement board to the back wall.
Screws into hardie board floor. These convenient panels of cementitious board provide an instant flat hard surface that bonds with the thin set adhesives or mortars used to install tile. Away from edges to avoid breakage. Drive screws flush with the surface of the board being careful not to break through mesh. And they did use thinset between plywood and hardie back and also between hardie back and tile.
You don t want to use drywall screws as the chemicals in the cement board will rea. Install boards 1 4 in above floor tub or shower pan and caulk accordingly. Cement board screws every 8 in. The term applies to a nailing screwing method for joining hardieplank planks to hide nail or screw fasteners.
Use a number 8 1 1 4 inch long by 0 375 inch wide hd ribbed wafer head or equivalent screw on steel studs. Position the screws at least 1 2 inch but no more than 2 inches from the edge of the sheet. The various brands of cement board such as hardiebacker durock denshield and wonderboard have become a standard tile backer material for nearly all ceramic porcelain and stone tiles for floor wall and countertop applications. Now the layers of floor are subfloor plywood 1 4 hardie board porcelain tile.
Drive the screws in so that the heads are slightly below the surface of the backerboard sheet. Screw a full size 3 x 5 ft. I applioed screws every 8 inches and it does feel sturdy. As in is it bad to use backer on screws over durock and do you think the 1 5 8 screws into this will hold up.
Fasten cement board with specified nails or screws as listed in materials required a maximum of 8 in on center at all supports. Cement board attached to plywood or similar underlayment will hold with only 1 1 4 inch screws. For thick or heavy metal fixtures use 1 5 8 inch screws. Keep fasteners 3 8 in from board edges and 2 in in from sheet corners.
In terms of cement board screws the size of the screw you need will vary depending on the fixture or base to which you attach the board. Place special 1 1 4 in. Keep screws between and from board edges and 2 from board corners. Using the screw pattern as a guide fasten your hardiebacker cement board with nails or screws every 8 on center over the entire surface.
Three screw threads must penetrate the steel stud. The manufacturer does not list an appropriate wood stud screw. Along each stud but 1 in. Drill screws through the backerboard sheets every 6 to 8 inches.