What kind of screws do you use for Hardibacker?

Cement Board Screws are designed for attaching HardieBacker or equivalent fiber cement backerboard to wood or light gauge steel studs.

Do you need special screws for Hardie board?

In compliance with the tile industry, James Hardie recommends 1-1/4” long galvanized or stainless steel roofing nails (0.121” shank x 3/8” HD) or 1-1/4” long corrosion resistant ribbed waferhead screws (No. 8-18 x 3/8” HD). Why can’t I get screws to sit flush with the HardieBacker® cement board?

What size screws Hardibacker?

Minimum 3/4” long ribbed counter sinking corrosion-resistant screws. 18-gauge corrosion-resistant polymer coated 3/4” staples with a 1/4” crown. For HardieBacker 500 cement board, use minimum 1-1/4” long corrosion- resistant roofing nails or ribbed countersinking screws.

Can you use screws on Hardie plank?

HardiePlank® lap siding may be used with fasteners approved by ICC-ES ESR-2290 spaced in accordance with the Wind Load Tables. Fasteners must be corrosion resistant, galvanized or stainless steel. … Fasteners shall be installed between 1 in. and 3/4 in.

Can I use durock screws on Hardibacker?

Designed for use with HardieBacker® Cement Board and USG Durock® Brand Cement Board, the latest screws feature a premium corrosion resistant finish and help prevent moisture buildup in kitchens and bathrooms.

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What Thinset do I use for cement board?

Installing cement board over a wood subfloor

The good news is that, basically, any thinset mortar will work for this. Some manufacturer’s instructions say to use a modified mortar and you should follow those instructions.

Can you use wood screws in Hardibacker?

Deck screws will work fine.

Can I use drywall screws for backer 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.

Can you use stainless steel screws for 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 just screw down backer board?

Screw and Joints

Do not use drywall screws as they are not recommended to be used to hold the backer board in place. All of your backer board pieces should be cut before they are placed on​ the floor. … Double the screws in those areas just to be sure it is attached properly.

Can I use cement board screws on Hardie board?

Fasten HardieBacker cement board with specified nails or screws (as listed in “Materials Required”) every 8 in over the entire surface. Keep fasteners between 3/8 in and 3/4 in from board edges and 2 in from board corners. Prior to setting the tile, fill all joints with the same mortar used to set the tiles.

Do backer board screws need flushing?

They should be flush or really close to it. Especially if you are painting over with a waterproofing membrane. I throw three backer screws in a sheet and then do pilot holes with a bit the size of my head about an 1/8″ in.

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