|
|
Cement Board Siding
I am putting the Hardy cement board siding on my house (finishing stages). We choose the cement board over the cedar as the bumble bee make short lunch out of the cedar here.
My question is I am using a 10" slide saw to cut the cement board. The blade is fine for cutting the board but now will not cut the normal lumber. There is some coating of the blade but it as if it has taken the set out of the blades teeth. The Skill saw is the same. I have not checked the table saw yet.
Does anyone know of a better blade to use than a regular carbide tip?
|
|
Add Photo
Bookmarks: |
|
|
|
Cement Board Siding
This material is similar to the tile underlayment except it has more wood fiber in the board.
I have finished most of the walls with the one 10" blade on the side saw and if anything the blade is cutting the cement board better that initially. The carbide tips still feel sharp, but it will not cut a 2 x 4 for its life.
The blade grabs like the set is gone yet the tips still feel sharp.
|
|
Add Photo
Bookmarks: |
|
|
|
Cement Board Siding
Ok;
You are telling me that I toasted 2 10" saw blade and a 7" saw blade. I guess I had better use them until I switch back to wood.
I think the question is; Will a dull blade cut as well as a sharp one? One can sharpen the blade with a tanto style edge, but the edge must be sharp. You need the lower edge to be leading as it cuts or it will simply push the grass.
|
|
Add Photo
Bookmarks: |
|
|
|
Cement Board Siding
As with a lot of information, it is on the web if we look hard enough or remember to look.
I made it to the building supply yesterday. People are using the electric shears or carbide tip blades to cut the board.
Although is shows it below the blades, it does not describe them. The blades have only a few teeth and large clearing rakers to remove cut material.
Link:  
|
|
Add Photo
Bookmarks: |
|
|
|
Cement Board Siding
I have looked at the blades I have been using for the siding. One 10" blade is Ridgid and has every second tooth a raker as in the cement board blades. This blade has been used on the table saw to rip the board. I have cut a number of 12 ft boards down for trim. This blade is still sharp and cuts wood well.
The other blade 10" Makita is dull for cutting wood. It has no rakers and greater number of teeth. It was used on the miter side saw.
I think that both saws cut nearly the same amount of material.
I guess the rakers clear the cut material from the cut in the cement board. It must be this material that dulls the carbide blades.
|
|
Add Photo
Bookmarks: |
|
|
|
Cement Board Siding
Agreed Billy;
My finding is that for longivity in cutting the cement board, the rakers make sense. The Makita blade is cutting still but requires a lot of pressure.
I looked at a 10" Marithon blade with rakers for 25$. This will last longer than than a more expensive blade.
I don't think you need an expensive blade just for the cement board only consider that you are going to use the blade only for the cement board and if the cost is the same go with something that has a raker between teeth as it will last longer.
I had been using both blades for a year before so both were not dead sharp. But if I had started with new blades I would have distroyed 100$ work of blades, for cutting wood after a couple of cuts on the cement board.
Peters
|
|
Add Photo
Bookmarks: |
|
|
|