Core-Fill

Log Out | Topics | Search Moderators | Register | Edit Profile

Author Message Ralph Liebing, RA, CSI, CDT Senior Member Username: rliebing Post Number: 1298 Registered: 02-2003 Posted on Thursday, February 23, 2012 - 09:50 am:    We have been receiving conflicting information about using Core-Fill 500 foam insulation to increase the fire rating of 2-hr CMU to 4-hr. What are your experience and comments. Thank you. Ronald L. Geren, AIA, CSI, CCS, CCCA, SCIP Senior Member Username: specman Post Number: 988 Registered: 03-2003 Posted on Thursday, February 23, 2012 - 10:09 am:    To my knowledge it has not been tested for that; only the loose fill items listed in the footnote to IBC Table 721.1(2)(i.e. vermiculite, perlite, expanded clay, lightweight aggregate, sand, or slag) will allow a 4-hour rating. Otherwise, it will need to be a tested assembly. Ron Geren, AIA, CSI, CCS, CCCA, SCIP www.specsandcodes.com Bob Sullivan (Unregistered Guest) Unregistered guest Posted on Tuesday, July 24, 2012 - 11:46 am:    The claim is absolutely false. An investigation of the claim is underway by the Office of the Attorney General in Florida. One E119 test of an 8" test panel showing 4-hour results was run with a proprietary formulation of Core-Fill 500 made with a "special ingredient" not found in regular Core-Fill 500. The "special ingredient" increased the water holding capacity of the foam; thus, enabling steam to cool the core of the test panel throughout the test.