Hi
Has anyone tried cutting fiber cement board wih a wet saw? Like a tile saw. You know to keep the dust down.
Thx
Hi
Has anyone tried cutting fiber cement board wih a wet saw? Like a tile saw. You know to keep the dust down.
Thx
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Replies
Well, no.
A. My tile saw has a sliding bed and a stationary blade. Pretty unmanageable to handle a 12' stick on it.
B. I use a utility knife for cross cuts and nibblers for rips. No dust.
C. Technically, you are supposed to prime cuts. Can't really do that if the stuff is wet.
D. If you get it wet, efflorescence will form on the painted surface which is impossible to get rid of without repainting.
You make some good points however:
>> C. Technically, you are supposed to prime cuts. Can't really do that if the stuff is wet. << You sure about priming cuts? Does it say that in the installation instructions or elsewhere? Got a link?
Yep, right here. Page 15. http://www.certainteed.com/resources/fc017.pdf Butt Joint Applications.
Edited 7/7/2009 10:43 pm ET by Marson
Sure enough. I had only read the Hardie instructions. Might be a reason not to use the Certainteed material. Of course they are calling for "moderate contact" between butt ends. Once you have seen a house full of puckered joints in the full sun that will cure you of that parctice in a hurry. Maybe they changed the Hardie instructions too re end priming....
This may well be a local urban myth, but I've heard that certainteed and Hardie are made in the same factory. None of the local yards around here carry Hardie for some reason.
Mike.
Get some shears.
Chuck S
no...
use nibblers and scoring knief...
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If you are able to do such a thing it will cut very slow. In addition the siding is not supposed to get wet.
Like others have said, Hardi isn't supposed to get wet, especially on the exposed ends. I would also think that a tile saw would make a real mess on the siding, due to the slurry.
I've got the Malco shears, a proper circ saw blade for Hardi, and some carbide tipped jigsaw blades. They all work well, especially the shears. The shears can be used on cordless or corded drills (corded goes faster).
Scott.