Can you use 1/4 Hardibacker walls?

Can you use 1/4 Hardibacker walls?

3 Answers. 1/4″ hardibacker alone is an unsuitable substrate for shower wall tile. If it were attached to properly waterproofed drywall, plywood, or plaster it would be fine. Think about it, one wayward elbow, knee, or hip bump and you may get flexion which would cause the grout (or tile) to crack.

Which side of 1/4 Hardibacker faces out?

This indent allows you to tape with fiberglass tape and thin set compound to give you a solid surface in which to place the tile. So smooth side out. The rough side is the back or bottom…with 1/4 ” hardie there is often scoring lines on the front…1/2″ just has the printing on the front.

Do you have to tape seams on Hardibacker?

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. Sometimes tiles will pop loose where there’s movement. Sometimes it allows an unimpeded way for water to get behind the board and into the wall.

How thick should Hardibacker be for shower walls?

The minimum recommended thickness for the shower wall is 1/2″ because like some of the other boards, they become far too flexible at thicknesses below 1/2″. Foam shower tile backer boards are generally about 4x the cost of cement board.

Is Hardie backer board good for shower walls?

sheets of cement board are sized for efficient use around bathtubs and showers. The core isn’t waterproof, but it can withstand getting wet without falling apart, so even if your waterproofing system leaks, the board will stay intact.

Does it matter which side of Hardibacker 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.

What do you put under Hardibacker?

Apply a supporting bed of mortar or modified thinset to subfloor using a 1/4 in square-notched trowel. Embed HardieBacker cement board firmly and evenly in the wet mortar. Use the fastener pattern as a guide.

Can you tile directly over RedGuard?

You”ll be fine with thinset over Redguard on walls. It’s recommended for waterproofing niches, shelves, and entire shower walls when tar paper or poly are not used as a vapor barrier behind the CBU.

Do you need to seal Hardibacker before tiling?

Contrary to popular thought, tile and grout are not waterproof, and some moisture will penetrate even if sealant is used. If you decide to go this route, no sealant will need to be applied on top of the backerboard, as this could trap moisture between the two layers of waterproofing.

What side of cement board do you score?

Place your HardieBacker Cement Board on a flat surface and mark your cuts with a straight edge. 2. Score along your straight edge, applying firm pressure as you go. If you’re using our quarter-inch board, you can score along the provided grid lines.