b'Marjes\'thestandardspecificationsbycalling foraI-inchstonefortheHumane Societybuilding,ratherthanthe -inch which isin the IRMA specificationrequirements.Thereasonfor "DOGHOUSE"this,he pointed out, is that the structureislocatedin adeep valley,ina highwindarea,withresultingstrong up-draftswhichmightcreatepotentialproblems.Thelargerstonewill provide an added measure of security getsanIRMAroof!for the roof.be marketed as acomIRMA will plete system rather than a product by Amspec, Inc., Columbus, Ohio.Their representative,JohnW.Morris,who was on the job site in Grand Rapids, indicatedthatthesystemhasbeen N snowRAIN,norhail,norbe protectedfrom environmental fac thoroughly tested and researched over EITHER shallstaythecourriertors.Yes,we meant tosayUNDERaperiodoftwentyyears,andhas from hisappointed tasks," could welltheinsulation.forthatiswhatbeen used successfully in Canada for apply to the Simmons Roofing Com the"InsulatedRoofMembraneAs sometime.Hesaid thataddingthe panycrewwhoworkedthroughasembly"(betterknownasIRMA)insulation to the top of the BUR AscoldwincyblizzardtocompletetheSystemisallabout.Conventionalsembly protects itfromclimaticconfirstIRMArooftobeinstalledinBuilt-UpRoofingisapplieddirectlyditionswhichcauseexcessiveexpanWesternMichigan.Sheetsofinsu tothedeck, waterproofingitaswellsion and contraction, and leads to delation,ontheroofof thenew*entasactingasavaporbarrier,withteriorationofthematerials. CountyHumaneSocietybuilding,StyrofoamRM,aplasticfoamin Highsummertemperatures,during Grand Rapids, Michigan, acted as sails,sulationmadeby theDowChemicalwhichtheBURroofsurfaceoften forcingroofersalreadyblindedbyCompany,moppedinontopofthereaches160whentheairtemperasnow,tobracethemselvestoavoidBUR.tureis80,acceleratethelossof going overthe edge.Asurfacing of crushed stone, 1000volatilesfromthebitumen.Inaddi-ForrestSimmons,Pres.,Simmonslbs.per square (twoand one-half the Roofing Company, seeking protectionusual amount which averages 400 lbs. behindaprotrudingchimney,shiv stone is specified as smaller pieces fall ered."Thisroofshouldlastfortybetween slabs of insulation, eventually years, in spite of the adverse weatherpushing themaside.Inaddition,the today," he said.angular surfaces of crushed stone preHisconfidencewasbasedontheis spread over the insulation.Crushed premisethattheroofunderthein vents it from rolling. sulationwaswellapplied,andwouldBriceMcMillen,architect,varied EXPANSIONJOINTPARAPETW/Tl-1COPINGSTONE. SC.lL.f:;.!\'r-o ROOFDRAIN ~A$E. FLMSMING P.OOF PENE.TAATION l=LASI-IING 51YROF0AM$P.MON e,LJILT-UP ROOrlNG Cf\'O\'/, 4ga. ____Jr _ ROOFVENTGRAVELEDGE.WALLFL ASHING 8JULY,1971'