Often asked: How To Cut Concrete Siding?

What do you use to cut cement siding?

For cutting fiber-cement siding, it’s best to use a 4- to 6-tooth polycrystalline diamond-tipped (PCD) blade made specifically for fiber-cement. Regular carbide blades will cut fiber cement, but they dull relatively quickly, and if you attempt a gang cut, the blades overheat and can warp.

How do you cut cement fiber siding?

Steps:

1. When cutting fiber–cement siding with circular saw, use a blade that has only four or six teeth.
2. To keep dust to a minimum, use a circular saw that’s equipped with either a dust-collection bag or electric fan that blows dust into a bucket.
3. For a slow, but virtually dustless way to cut siding, use power shears.

What kind of saw blade do you need to cut Hardie board?

To cut this type of siding, use a masonry blade. Masonry blade types include abrasive materials or vented diamond blades that are used for dry cutting. The blades are designed to be used with most cutting tools, including circular, table and miter saws.

Can you cut Hardie board with a circular saw?

Cement backer board can be cut with a carbide-tipped scoring tool, just score and snap the sheet, similar to cutting drywall. For straight cuts, use a circular saw fitted with a carbide-tipped woodcutting blade, but here’s a little secret: use a blade with the fewest number of teeth you can find.

Can you cut Hardie board with a utility knife?

A carbide-tipped scoring knife is recommended, but you can also use a utility knife or shears. Never use a high-speed grinder to cut cement board indoors, since this can create a dust hazard. Here’s how to perform a straight cut on your HardieBacker Cement Board: 1.

Can you screw Fiber cement siding?

Fastening Siding



Fiber cement siding can be nailed by hand or with a pneumatic nailer. It can also be attached using corrosion resistant screws. Use hot-dipped galvanized or stainless steel nails.

What goes behind Hardieboard?

Joint flashing: James Hardie recommends that a slip sheet (joint flashing) is installed behind each butt joint in the siding. This is a 6” wide piece of weather resistive material to make sure that no water gets through.

Can you install Hardie siding directly to studs?

HardiePlank® lap siding can be installed over braced wood or steel studs spaced a maximum of 24″ o.c. or directly to minimum 7/16″ thick OSB sheathing. See General Fastening Requirements.

Do I need a special blade to cut cement board?

There are a few different power tools that you can use to cut cement backer board. For straight cuts, use a circular saw fitted with a carbide-tipped wood-cutting blade, pushing the saw into the material with slow, even pressure. Here’s a little secret: Use a blade with the fewest number of teeth you can find.

What kind of screws do you use for Hardie board?

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.

Is Hardie board dust dangerous?

Breathing dust that contains respirable crystalline silica can lead to silicosis, a deadly lung disease. Respirable dust is that fraction of the aerosol that is small enough to reach the deeper, gas-exchange regions of the lungs.

Is Hardie board fireproof?

Yes, HardieBacker® 1/4″ Cement Board is deemed noncombustible when tested to ASTM E 136 and can be used in conjunction with other noncombustible materials around a fireplace. This does not mean that clearances to combustible building materials can be reduced by using HardieBacker 1/4″.

Can you rip Hardie trim?

I’d put the blade in a circular saw that has a guide, set it to 1/2″ and rip them by hand. Just be sure you don’t cut into any wood while you‘re ripping. It will shred the teeth off your blade.