Resources

 FIRESTOP SPECIFICATIONS
http://www.fcia.org/articles/spec078400b-032507.doc

UL 1479 Septeber 20, 2007 - Chase Wall Revision
http://www.fcia.org/articles/ULChaseWallLetter.doc

Hilti - Understanding Putty Pads
http://www.us.hilti.com/fstore/holus/techlib/docs/FW_11-2012_Putty-Pads.pdf 

FCIA - Understanding F&T Ratings

http://www.fcia.org/articles/fandtratings.htm