Document 50a8Lm2p0p3KJE8gwjwoQKwa0

FILE NAME: WR Grace (WRG) DATE: December 1- 2, 1971 DOC#: WRG 165 DOCUMENT DESCRIPTION: 1971 minutes of Plaster and Fireproofing Committee MINUTES OF MEETING PLASTER & FIREPROOFING COMMITTEE CAMBRIDGE. MASS. A meeting of the Plaster 6 Fireproofing Committee was held In Cambridge Massachusetts on Wednesday and Thursday, December 1 and 2, 1971. The following members were present: > - (1) MINUTES A. V. Dambros T. F. Egan * T. P. Felt S. B. Moran (for J. H. Greer) J. C. Ottlnger ' The minutes of the September 14-15, 1970, meeting that was held at the Fenway Hotel In Cambridge, Massachusetts, and distributed under the letter dated November 30, 1970, were accepted. (2) NON-ASBESTOS M0N0-K0TE - REVIEW AND STATUS The research and testing program was reviewed. Discussion followed relative to the testing of assemblies at Underwriters' Laboratories. Recommendations were as follows: _ (a) MK-III - continue to use where possible. (b) MX-IV - obtain additional necessary ratings. (Since meeting, MK-4 has been UL approved for 3-hour blend system with light weight and regular weight concrete and trench headers, per UL letter dated January 5, 1972.) (c) MK-V - continue with research effort. (Since meeting, two formulations have been sprayed to fire test assemblies at - - UL for testing on February 4, 1972.) (3) REVIEW OF ASTM E-119 REVISION The new E-119 criteria was briefly reviewed along with affected Hono-Kote ratings. In general, where existing floor designs were In Jeopardy of having their ratings reduced, the ratings were- ro onsG maintained imply by increaaing the Mono-Rote thickne'^6n,*tije beam. (Since meeting, T. Egan and T. Pelt together visited UL and reviewed all revised UL ratings. Where necessary and where possible, the ratings ,yqre~xevised..ta incorporate the reconaen- dations of the comaltgeevfr~:- *~ -- (4) PIPE TESTING v ^ - ^ A h - *S?KOO?IK ~ ~ -- It was agreed that f i r ^ ^ T n ^ s h o u i d be conducted on assemblies: (a) Utilizing large member trusses a mee^y ^ * nassacriuset i n .Committee vfci tv__ . uecfttycr . rs: . ,,c ...*. (c) Consisting of a more competitive EC 5-1 l/2Hr. (EC 10-lHr.) ------ system-- ...... . ' (d) Utilizing a* spandrel* beam protected on one face with rigid board : : . (e) Utilizing lOOt flat plate cellular deck v()_.Similar to EC 7-2Hr. to maintain the 2-hour rating in the ~ -- i-oot restrained condition. (Since meeting, ASTM Committee E-5 has proposed to eliminate the not restrained temperature .... requirement off "steel floor or roof units having spans equal to or less than those tested." .Because ve are now presently unaer ilSdtrtfTtV a p ^ . DVheJhccept-anci"of t h i V b y ASTM . yould. result .in. our achieving..the. required 2-hour not ' V eat-rained-reting-vi-fcheut-exper1eneing any hardship or limitation to what we currently have approved.) Int resiiiii;. tnc teati:: t>rurrac* revieiu. ... Tg)^Consisting a*mo re1 co^Vritlve EC 7-2Hr.* system; that is, `'fc;i" ar*ir reduced*concrete'thickness, with approval for use with Joists. r -E*- v;. : (h) Utilizing an unprotected floor system with Mono-Rote applied to the beam and directly below the trench headers. (Since meeting, Mono-Rote has been sprayed onto such an assembly 'at UL.)"*** ***'-'- - (i) Cooperating with the Prestressed Concrete Institute to provide-xhe-:firep'roofihg*to'prestressed single and double tees. .'.crmuie-.icrii njv. setrs ir.rrvc: . -:r*. *- (J) Sponsored b y 1va'Hoils'steel deck manufacturers and others when we are asked to provide the fireproofing. r 7001157 - 3- It was agreed that more information vas needed before recommending fire teata on assemblies: (a) Utilizing a column section less than W 10 Z 49 (10 VF 49). (b) Utilizing a wall aaaeably with Mono-Kote applied directly --- to the Interior face of brick. . (5) COMPETITIVE FIRERPOOFINC SYSTEMS ' There vas a general review of competitive producta and systems. (6) ASBESTOS There vas s general review of the esbeatos situation and the growing list of municipalities that have banned the spraying of all asbeatoa containing fireproofing materials. (7) FIELD INSPECTION PROCEDURES The field inspection procedures (thickness* density* bond* ease of damagablllty* etc) of the New York Fire Insurance Rating Organization and the testing procedures before ASTM Committee E-6 were reviewed. It was concluded that more field controls of spray-applied fireproofing by regulatory agencies should be expected. (8) ASTM COMMITTEES The memberships on the various ASTM committees were reviewed: (a) E-5 (fire tests): T. Felt* and T. Egan (b) E-6 (building construction): T. Felt * (c) C-9 (lightweight concrete): (Since meeting* Bob Frohllch has accepted responsibility for membership on this Important committee.) (d) C-ll (gypsum): U. R. Grace 6 Co. Research Personnel . (e) C-20 (acoustical): Walt Plekthall ... (f) D-16 (insulation): Tru BJorklund (9) MONO-KOTE MANUALS It was agreed to continue with the present applicator manual. It was suggested that a single architectural manual to include all .70U11SS architectural products vas seeded. Further, a separate technical f o r salesmen's use was needed. (10) APPLICATION INSTRUCTIONS There vas agreement that data sheet "Job Set-Op" vas sufficient. If local conditions require additional information, such Infor mation should be prepared by that local office to fit their individual needs .(11) APPROVED MONO-KOTE APPLICATOR PROGRAM Although there may be reasons on a local level to adopt a socalled approved Mono-Kote applicator program, it vas agreed that this should not be attempted on a national basis. (12) ADVERTISING * It vas felt that magazine advertising should be more topical. (13) LITERATURE The 1972 Mono-Kote sweets catalog vas reviewed with general agreement as to its suitability. The priority for future updating of literature Is the "Comparison Chart" (after release of UL's 1972 "Building Materials List") and following that an updating of "Fire Resistance Ratings." (1A) MEMBERSHIPS AND ASSOCIATIONS Membership has been retained on the three'natlonal building code congresses (Southern, BOCA, and ICBO), but there has been no participation at their code changes meetings. It vas pointed out that our heretofore close relationship with national govern mental organizations and associated Industries vas Inactive. (15) MISCELLANEOUS ` - A. B. Moran accepted the responsibility to prepare a "white paper" on the subject of fire losses in multistory buildings protected with sprayed fireproofing. . (16) ADJOURNMENT The Committee adjourned at approximately noon of the second day. 7011S3 A. V. Daabros/Zono-LA Office T. ?. Igan/Zono-Wilaette J. B. Greer J. C. Ottlnger ec: ZOBOLITE MAILING LIST B & 7 C. R. Love/Zono-Atlanta .... .R. L. Asher/Zono-Boca Baton (?) V* K. Rogers , . ... C. H. WendeX/Zono-LA Office B. B. Moran/Zcmo-Dallaa . D. Bosaier/Zono-Nev Orleans G. L. Myrick/Zono-Atlanta J. L. Westbrook/Zono-Atlanta L. A* White/Zono-Naahville T. 0. Burruss/Zono-Boea Raton (?) B. . Getz/Zono-Dearborn J. Cintani/Zono-Trenton B. G. Bartaan/Zono-New Castle * L. ? Hollis/Zono-High Point J. S. Titus/Zono-Trenton . - r J. N. McDougall/Zono-Se. Louis J. B. McLeod/Zono-Minneapolis V. G. Monroe/Zono-Vildera V. J. Sinacore/Zono-Wilnette \ B. L. Upchureh/Zono-Dearborn \ R. K. Bumhaa/Ari-Zonolite V. V. Culver/Zono-Auburn r T. W. Pickthali/Zono-Newark J. L. Venzler/Zono-South Gate V. ?. Buahell/Vancouver J. V. MeXague/DHS-Scarborough J. X>. Vright/DHS-Ednonton A. 0. Webster/?. Hyde A Co., Ltd. J. B. Robinaon/Robinson Insulation Co. J. Lyall/Southvest Veraiculite Co. L. K. Irvlne/Vernieulite-Interaountain M. Fernandez/The Placco Co. of Puerto Rico B. B. Villiaas J. L. Wright R. ?. Chaney/Zono-Newark R. T. Frohlich * , P. R. Strand received r-3 1 1972 ^i<cD*tm<T)oa re * M KCTUM * V r