Posted by MUHAMMAD HADIabout 4 years ago
Mineral wool density
for fs one max, UL states 4pcf mineral wool is to be used. Due to inavailabilty can we use 60 pcf mineral wool.
1 Reply
Posted by Michael Vuabout 4 years ago
Hello,
As long as we install the minimum PCF as required by the UL/cUL classified system, or Hilti Engineering Judgement, this system/engineering judgement represents a firestop system that would be expected to pass the stated ratings. Please contact the mineral wool manufacturer to accurately determine if their product can be installed in the desired firestop application.
Thank you,
Michael Vu
Fire Protection Engineer