Just sharing some of the different methods i ve used for cutting hardieboard siding.
Cutting hardie board siding with jigsaw.
In this video this old house general contractor tom silva shares his secrets for working with fiber cement siding.
The bosch carbide edge jig saw blade provides 10x life versus standard bi metal blades featuring a carbide tipped edge designed for cutting abrasive building materials.
The hardi blade only has four teeth.
James hardie has collaborated with a number of installers to identify easy setups that are effective affordable and will help you meet osha s compliance standards.
You should take a jigsaw with a metal blade or a carbide grit blade.
Cut the trim board with the saw.
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To start the saw in cement backer board drill a hole though the backer board large enough for the jigsaw blade or make a plunge cut with the blade in the backer board.
When cutting fiber cement siding with circular saw use a blade that has only four or six teeth.
Wait for the saw blade to warm up and come to full rpm before.
It also snaps the end of the cut so the siding has to be cut face up with the bottom toward you.
Lay your cement board out on a work table or between two saw horses.
Keep a firmer grip on the board than with regular wood.
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.
Unlike score and snap you ll need to use a surface.
So this one jig saw blade really provides the confidence to make clean cuts in hard material.
Cutting station best practices.
No way would i rip fiber board of any kind without dust collection.
Setting up your cutting station correctly is just as important as selecting the right tools.
Havent tried the jigsaw blade or an actual hardi blade for circular saw.
Make sure to go slower than with a normal blade and wood.
For those who want to ensure the cutting line in the hardie board or a beginner you are able to try a jigsaw.
Always be sure to wear dust and eye protection when cutting cement backer board.
To cut holes in cement backer board to use under tile equip a portable jigsaw or sabre saw with a metal cutting blade.
A thin blade kerf reduces material extraction reduces heat and adds to performance.