Block Wall Rating Fire Resistance Ratings Walls
The greater the equivalent thickness, the greater the fire rating.
Fire Resistance Ratings of CMU Walls Calculator
Applying plaster of gypsum wallboard will also increase the fire resistance.
Exterior Walls – Masonry Block Wall Fire Rating
Portland cement (proportioned by volume) and not more than 50 percent hydrated lime (by cement volume). As an example, an 8″ standard weight block has a 1 hour rating and an 8″ lightweight block has a 2 hour rating. Colours are representational only, please visit a sales centre for current samples. Fire resistance of concrete masonry walls is a function of aggregate type and equivalent thickness of the masonry units.
Concrete Block Fire Resistance Test
The brief was to remove the non rated decorative wall and install 2 hour fire rated wall to house the buildings new hydrant pump.