How many screws do you need for WonderBoard?

around all edges using 1-1/4″ cement backerboard screws or 1-1/2″ galvanized roofing nails. Around perimeter of each board, position fasteners within 1/2″-2″ of edges.

Fasten a minimum of 12 screws into the board (4 rows of 3 screws). Keep fixings between 15mm from board edges and 50mm from board corners.

Secondly, how often do you screw backer board? fasten backer board to floor Fasten the backer board to the floor using proper nails or screws, as recommended by the manufacturer, every 8″ around the perimeter and all supporting the studs. Keep fasteners between 3/8″ and 3/4″ from sheet edges and 2″ in from sheet corners.

Herein, what goes under WonderBoard?

WonderBoard Lite can be used on horizontal or vertical (7/16″ only) applications such as walls, ceilings, floors, decks, countertops and vanities. Use under any tile or natural stone.

Does it matter which side of cement board faces out?

Cement board has a smooth side and a rough side. Face the rough side out if you will be using thin-set mortar adhesive to install the tile but the smooth side out if you will be using latex mastic.

Do I need to seal cement board before tiling?

Although most backerboards currently available won’t fall apart when exposed to moisture and are somewhat water-resistant, they aren’t waterproof. To prevent moisture from seeping through to the wood or metal studs beneath the tile, a barrier or sealant must be used on porous materials.

How long should cement board screws be?

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.

Can you use drywall screws for cement board?

No, you should not be using drywall screws. Drywall screws can corrode from presence of portland cement and lime in mortar and CBU. There are screws that are specially coated to be used with the cement board.

Can you use 1/4 inch cement board on floors?

Floors. Both 1/4- and1/2-inch cement board are appropriate for floors. To install cement board on floors, cement board manufacturers mandate a 5/8-inch plywood subfloor or OSB underlayment. They also require a 3/4-inch subfloor where tile size exceeds 12 inches.

Is HardieBacker waterproof?

Everything you’ve come to expect from the most preferred brand of backer board* – exceptional performance, ease of use, and excellent tile adhesion – now with a waterproof composition throughout the board. HardieBacker® 500 Waterproof Cement Board delivers lasting results in less time with no compromise on quality.

How thick should cement board be for tile?

Cement-fiber, or similarly reinforced, backer board comes in standard 1/4 inch and 1/2 inch thicknesses. If you’re installing backer board over an existing subfloor, 1/4 inch is sufficient. If you’re installing backer board in new construction, attaching it directly to floor joists, opt for 1/2 inch sheets.

What screws to use for WonderBoard?

polyethylene sheeting to studs prior to installing the WonderBoard Lite. across the wall. around all edges using 1-1/4″ cement backerboard screws or 1-1/2″ galvanized roofing nails. Around perimeter of each board, position fasteners within 1/2″-2″ of edges.

Is WonderBoard the same as cement board?

WonderBoard is a cement-based backer board mainly used for tiling in wet places. Specifically, its components are Portland cement, expanded polystyrene (EPS) beads, aggregates, and fiberglass reinforcement. All it takes is a little pinprick-sized hole in the grout, and that water will travel to the tile base.

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. Backer-On’s patented serrated head design countersinks for flush seating at any angle, providing a smooth surface for tile.

What is the difference between durock and WonderBoard?

Durock: Lighter. Smooth surface is smoother. Screw heads sink in with minimal trouble. Wonderboard: Heavier and stiffer.

Do you need to use thinset under cement board?

Since you are putting down hardie board on boards with small gaps, I would not recommend trying to put down thinset under it. It will make an enormous mess under the house (or whatever is under your bathroom). It is also more likely to make the floor uneven since it is hard to level thinset that is separated by gaps.

Do I need to use thinset under WonderBoard?

Thinset is absolutely required beneath backer-board on a floor. Also, backer-board provides no structural strength at all. You can not install it directly over a 1x subfloor; that is way too thin and will deflect. It does not sound as if you have a quality-minded contractor.