DIYbanter - View Single Post - Hardibacker board vs Cement board for Garage/Mudroom shower.

Keith Williams

In article .com,
says...
Hardibacker all the way -

I want to voice a note of caution however, you should NOT use a power
saw to cut Hardibacker unless you are wearing a resperator, and you
should wear a resperator when sweeping up cuttings as well. Hardibacker
dust when inhaled can cause silicosis (a dangerous and sometimes fatal
lung disease)- and it doesn't take long exposures over many years to
get it either.

It's not all *that* bad. The size of the particles has to be just
right and it does take a while for silicosis to set in. A mask is
a good idea (there is a warning on the label), and I do all the
cutting (backer and tile) outside because it does make a mess.

It's better to just score and break it.

How do you "break" the hole for a toilet waste line or dryer vent?
I use a RotoZip. ;-)

--
Keith