This is all assuming you have a nice, gently curved plywood substrate that you can screw to every 6~8″ and not just 16″oc studs. Show activity on this post. A jigsaw fitted with a carbide or metal cutting blade will cut through the backer board without a problem.

Can you curve backer board?

PermaBase® Flex BRAND Cement Board is a polymer-modified cement board reinforced with an alkali- resistant fiber mesh. It is ideal for use around beams, columns, arches, archways, curved walls, ceilings and anywhere an evenly curved surface is required.

Can you curve cement board?





PermaBase Flex® is a polymer-modified cement board reinforced with an alkali resistant fiber mesh. The flexible cement board is ideal for use around beams, columns, archways, curved walls, ceilings and anywhere an evenly curved surface is required.

How do you tile a curved wall?

So, can you tile a curved wall? It’s possible, however, tiling a curved wall does take more precise work. To properly tile a curved wall, you’ll either need to use tiny tiles such as 1” x 1” mosaics or cut larger tiles to make them thinner. Doing so will make the tiles easier to manipulate around the bends of the wall.

Does it matter which way you lay backer board?

No, it doesn’t matter. Regardless of which side faces out during installation, you can expect the same great performance that has made USG Durock® Brand Cement Board the preferred choice of professionals and do-it-yourselfers for decades.

How do you tile a curved ceiling?

When tiling a sloped or curved ceiling, begin at the lowest points and tile toward the highest point. Use spacers as needed to keep the tiles from sliding, which can break the surface tension and cause the tiles to fall.

How do you cut curves in cement board?





Lay your cement board flat, and draw a line with a carpenter’s pencil where you intend to cut. Place a straightedge along the line and drag either a drywall utility knife or a scoring tool against it. Repeat your cuts two to three times to make them deeper, which will make snapping the board easier.

What is Aquapanel?

Knauf AQUAPANEL® Cement Board Indoor is a tough impact and water resistant glass fibre reinforced cement tile backer board for walls. It is a lightweight board that is easy to install and suitable for use in indoor wet and humid areas, resisting the development of mould and mildew.

What is PermaBASE cement board?

PermaBASE® Cement Board provides a durable surface designed to withstand prolonged exposure to moisture. Made with Portland cement, aggregate, and fiberglass mesh, it works well as an underlayment for tub and shower surrounds, countertops, flooring, and a variety of other interior and exterior applications.

Can you use Aquapanel outdoor?

Knauf Aquapanel Exterior Cement Boards provide a solid, dry base that can withstand the extreme weathering effects of wind, rain and snow. It is an ideal substrate for directly applied render finishes and can be used for exterior walls in ventilated systems, exterior ceilings and soffits.

Can you just screw down cement board?



Doing this will require that you remove the existing surface material before installing backer board over the studs. Cement board can also be used on countertops when laying tile. However, the process will involve using an extra sheet of backer board. Never use standard screws when installing cement board.

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. Along the perimeter, screws should be installed at least ½ inch from the edge, but no more than 2 1/4 inches.

Which side of cement backer 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.

What do you do with a gap between tub and cement board?

The best approach when installing cement board or other tile backer around a tub is to keep the cement board out of the lip area. Apply it to the wall with the bottom edge about 1/4 in. above the lip of the tub. Then apply a generous amount of thin-set to the bottom bathtub tile and position it 1/8 in.

Do you have to tape cement board before tiling?

If you are going to tile over the cement board, you should tape the seams. This should not be that difficult.

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.

Do I need to Prime tile backer board?



1. Do I need to prime HardieBacker® board before I tile onto it? No. HardieBacker tile backerboard is ready to tile once installed, just wipe down with a damp sponge to remove any dust prior to tiling.

Do you need to use Redgard over cement board?

No, you don’t need to apply Redgard over your Hardibacker. Here’s why: Redgard works best on cement boards and plywood because it prevents water from seeping into those surfaces. It can also work on top of drywall that isn’t behind a tub or shower, but it will eventually wear off after repeated moisture exposure.

Does Durock cement board need waterproofing?

Even though water will not affect USG Durock® Cement Board with EdgeGuard, the board alone is not waterproof. If waterproofing is desired, apply a waterproofing membrane such as USG Durock Waterproofing Membrane or USG Durock™ Liquid Waterproofing and Crack Isolation Membrane over the cement board.

What’s better Hardie board or durock?

What is this? HardieBacker is also the go-to choice when it comes to countertops and tile. Durock is too abrasive and can damage vinyl, porcelain, and enamel. HardieBacker does not contain any course materials, so it is the preferable choice.

Does thinset stick to RedGard?



You can install thinset mortar and tile directly onto RedGard. For best results, mix mortar in small batches and apply it to the shower wall a small area at a time. Use a notched tile trowel to spread mortar whenever you are tiling over RedGard.