|
If you think modern building construction could not get any more dangerous for firefighters....think again. Georgia-Pacific has developed the "XJ-85" pre-engineered floor joists with cut-outs for ductwork, electrical lines, water supply, etc. As evidenced by this video, pre-engineered joists are destined to fail quickly even without these cut-outs. Georgia-Pacific's fire safety information, which is provided on their website, states "In the event of an actual fire, you should immediately take any and all action necessary for your safety and the safety of others without regard for any fire rating of any product or assembly." From G-P's website:
"Find your ductwork's happy place. Run it in conditioned space.
The XJ 85® I-joist from Georgia-Pacific is an innovative engineering achievement, combining radical hole shaping and placement with the stiffness and quality you expect from Georgia-Pacific Wood Products. The strategically located pre-cut openings allow ductwork to be run in conditioned spaces, out of extreme attic temperatures. This helps lower heating and cooling loads, and helps increase energy efficiency. Plus, the lightweight construction and wider on-center spacing of the XJ 85 joists contribute to lower installed cost"
Don't hold your breath if you expect the builders to use those savings for a home sprinkler system. LESS MASS=LESS BURN TIME!
|
