Table of Contents
How many screws do you need for a HardieBacker sheet?
Screw the HardieBacker into the floor, using 1¼-inch backerboard screws and using one screw every 8 inches. via
How many screws come in a sheet of cement board?
Place special 1-1/4 in. cement board screws every 8 in. along each stud but 1 in. away from edges to avoid breakage. via
How many screws do you put in backer board?
Screw the backerboard to the sublfloor with 1 1/4-inch backerboard screws. Screw the backerboard approximately every 8 inches or at the locations marked on the sheet by the manufacturer. Stay at least 3/8 inch away from edges and corners to prevent splitting. via
What screws to use with Hardibacker?
What type of fastener do you recommend for floor and wall applications of HardieBacker® cement 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. via
Do you nail or screw cement board?
In general, 1 1/2-inch galvanized nails will hold the board firmly in place. For flooring or wall installation, some builders choose to apply a thin layer of thinset mortar under the cement board to prevent any shifting or expansion. Even if you use this extra adhesive, you should still apply the nails or screws. via
Can you nail down Hardibacker?
For HardieBacker 500 cement board, use minimum 1-1/4” long corrosion- resistant roofing nails or ribbed countersinking screws. Minimum 7/8” long galvanized ring shanked nails. • Fasteners should be long enough to reach the bottom of the subfloor, but not penetrate it. via
Can you use drywall screws for 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. via
Do I need vapor barrier behind Hardibacker?
Hardibacker doesn't need a vapor barrier or waterproofing except you do need to tape and thinset the joints. via
Does cement board need to be waterproofed?
So, if you're looking for durability and strength, concrete backer-board will probably be your choice. First, you should provide a waterproof/resistant membrane against the wood studs before installing the concrete backer-board to protect the wood studs from moisture absorbed through the backer-board. via
Which is better durock or Hardibacker?
Durock is too abrasive and can damage vinyl, porcelain, and enamel. HardieBacker does not contain any course materials, so it is the preferable choice. It has a warranty that extends over the use of vinyl tile applications. Durock does not. via
Do you have to tape Hardibacker joints?
For tile backer boards such as Durock, Wonderboard, Hardiebacker, Permabase, and others the seams between the board need to be treated with 2-inch alkali-resistant mesh tape. Then a coat of thinset gets flat troweled over the seam. What this does is tie the two boards together and help prevent flexing. via
Do you have to use thinset under backer board?
Not only is thinset a critical component underneath cement board but the other critical component is the fasteners. And you won't have the fasteners if you are trying to install it over concrete. via
Do you need special screws for Hardibacker?
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. Backer-On's patented serrated head design countersinks for flush seating at any angle, providing a smooth surface for tile. via
Can I use drywall screws for Hardibacker?
No, you should not be using drywall screws. Drywall screws can corrode from presence of portland cement and lime in mortar and CBU. via
Can you use durock screws on Hardibacker?
Q: Can Rock-On and Backer-On screws be used on Hardiplank? No, Rock-On and Backer-On screws are not approved for exterior applications. via