To attach the cement board to the studs, you'll need special 1-1/4 in. cement board screws (see Fig. B). These screws have a coating to resist corrosion, a special wide head with cutting flutes and hi-low threads for a strong grip. If you can't find them at a home center, call tile specialty stores.
Will cement board hold a screw?
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. In general, 1 1/2-inch galvanized nails will hold the board firmly in place. ... Even if you use this extra adhesive, you should still apply the nails or screws.
Can you use deck screws for cement board?
I think the screw will care. I don't install cement board for a living, but from talking with people/professionals who do, the proper screws should be used. You can't just use any screw or they will corrode in that application, and Ive seen badly corroded screws from using incorrect ones. Definitely not drywall screws.Aug 25, 2012
Can I use backer on screws with cement board?
Backer-On screws can be installed with a standard impact or drill/driver and T-25 star drive bit (included with product) for cement board fastening done right. Backer-On 1-1/4 in. Cement Board Screws are designed for attaching HardieBacker or equivalent fiber cement backerboard to wood or light gauge steel studs.
What is the screw pattern for cement board?
Secure Backerboard with Screws Drill cement board screws through the backerboard sheets every 6 to 8 inches. Position the screws at least 1/2-inch, but no more than 2 inches, from the edge of the sheet.
How many screws should you put in cement board?
You will use approximately 55 screws per 3′ x 5′ cement board and 150 screws per 4′ x 8′ cement board. In wall applications, screws should be placed every 8″” when connecting to the wall studs. This will amount to roughly 25 screws per 3′ x 5′ cement board.
Do you use regular drywall screws on cement board?
You don't want to use regular drywall screws for cement boards. They can corrode, they can break down the edges of the boards, and they won't drive in flush properly. Use ITW's ROCK-ON and BACKER-ON screws instead.
Can I use stainless steel screws on cement board?
If your screws were permanently bombarded with moisture then yes stainless would probably the route to take but if there was that much moisture then tanking would be required.
Can I use deck screws for cement board?
I think the screw will care. I don't install cement board for a living, but from talking with people/professionals who do, the proper screws should be used. You can't just use any screw or they will corrode in that application, and Ive seen badly corroded screws from using incorrect ones. Definitely not drywall screws.Aug 25, 2012
Do you need special screws for Hardie board?
James Hardie recommends 1-1/4'' long galvanized or STAINLESS steel roofing nails or 1-1/4'' long ribbed waferhead screws in compliance with the tile industry. It is 8-18 x 3/8'' HD.