Letter Re: Cinder Block Safety Concerns
JWR, First of all thank you for your blog. I have been reading it every day for the last year. J.D. in Texas offers some good information regarding Concrete Masonry Units(CMUs), however I may be able to share some more details. I have also been in the concrete masonry business for about 22 years. The first thing to consider when using concrete masonry is to avoid breathing any dust from the units, such as when a unit is cut, split, or ground. At the very least use a N95 or N99 dust mask. If you are cutting a CMU then …