WHAT DOES RUBBER INSULATION MEAN?

The dearth of fall safety in graphic #6 is a tad alarming. OSHA has been producing the rounds in Massachusetts even on compact assignments similar to this.The R-benefit/inch ought to be up to date (vital as it seems this informative article is staying recycled): it is actually R4 to R4.two/inch for Rockwool products as the very first commenter ment