what is the best saw blade for James hardie siding? For a larger project, use a fiber cement saw blade with polycrystalline diamond tips; if you’re installing Hardie siding on a shed or other small building you can use a fiber cement saw blade with carbide tips.
In this way, can you cut Hardie plank with a circular saw?
You can use a jigsaw, table saw or circular saw, or another tool, as long as it’s equipped with the right kind of blade. Once prepared, cut the Hardie board as you would any other material. Mark your line; align the board against the guard as needed and slowly but firmly make the cut.
Consequently, how do you cut a cement fiber board?
How do you cut cement board cladding?
Fit your circular saw with a carbide-tipped wood-cutting blade (view example on Amazon), choosing one with as few teeth as possible in order to minimize the amount of dust given off as you saw. Operate your circular saw as you typically would, pushing it slowly and evenly through your cement backer board.
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.
With something like a carbide-tipped saw blade, the main body of the blade is made of steel. The small tips of carbide are brazed on to the body. A good carbide tip might hold an edge ten to twenty times longer than a tool steel tip. The carbide tip on a typical circular saw.
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.
Screw the board in place
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.