Respiratory protection for roofing includes an air purifying respirator (APR) with organic vapor cartridges (unlike interior, or confined space installation, which requires the use of supplied air respirators [SAR]). In accordance with OSHA, all roofing contractors must employ proper fall protection ...
That NFA can be cut in half for attics that have higher ridges over the attic floor (1 meter or more) and that have a vapor barrier (or in my OPINION equivalent means) to reduce air leaks and moisture leaks into the attic space. Watch out: our OPINION is that continuous soffit or...