September 2013 Company Newsletter: The W-Rating
Bartkowski Life Safety Corp • March 29, 2016
Many have heard of it, some have implemented it on projects; but is there truly a clear understanding of the W-Rating
as it applies to through-penetration firestopping? In this installment of our Newsletter we will explore the W-Rating
and address the following:
1) What is W-Rating
?
2) Why do we use it/why is it Specified?
3) How do we achieve this rating at metallic and insulated metallic pipe penetrations?

#BLSC is proud to have been selected to perform the Perimeter Firesafing and Smokeseal at the Curtainwall on the upcoming Oyster Point Phase 2 project located in the heart of San Francisco, CA.
Phase 2, features an urban village that includes an outdoor amphitheater, outdoor meeting spaces, conference center and an F&B amenity building.
#Firestop
#LifeSafety
#Curtainwall
#Construction

Almost time to rise!
#BLSC will be installing the perimeter Firesafing/Smokeseal at the Curtainwall perimeter on this magnificent 49 story skyscraper located in Long Island, NY.
Our field teams are ready to climb.
Thank you to our teammates, vendors, and partners for trusting in the BLSC way.
We love what we do!
#Firestop
#LifeSafety
#Curtainwall
#Construction