b'1000 Power 8Light Bldg.,KansasCity, Missouri64105 June-July ,1978 PRELIMINARYREPORTONSINGLEPLYSYSTEMS EnclosedisacopyofMRCA\'sPreli minaryReportonSinglePlySystems. TheReportisi ntendedtofurnishroofingcontractors,architects,specificationwritersandownerswithfactualandpracticalinformationconcerningthevarioustypesofsingleplysystemscurrently beingmarketedin thiscountry. Itis veryimportanttonotethattheenclosedReportis PRELIMINARY-MRCA\'sinvestigationofsingleplysystemsiscontinuing,andadditional informationwillbepublishedwhenandasit becomesavail able . ItisalsoveryimportanttonotetheenclosedReportis notasales tool- MRCAisnottryingtopersuadeyoutouseornotusesingleply systems.Rather,it isourpurposetofurnishyouwithinformati oncon,,.__,,cerningsinglep.lysystemsso.thaty0umaymakeaninformedde.-e.is.ionas towhetheryouwillorwillnotusesingleplysystems,togetherwith practicaldo\'sanddon\'t\'swithrespecttosystemapplication. AdditionalcopiesoftheenclosedReportareavailableuponrequestto theAssociationoffice.Weareaskinganominalchargetorecoverprinting andpostagecostsasfollows: 1to10copies$.50percopy 11to50copies$.45percopy 51ormorecopies$.40percopy Wehopeyouwilldistributecopiesinyourareatoarchitects ,specification writersandowners. BARLOW\'S,INC.- ASYMBOLICVICTORY? TheSupremeCourthasheld,inSecretaryofLaborv.Barlow\'s,Inc., decidedMay23,1978,thatthe OccupationalSafetyandHealthActof 1970"isunconstitutionalinsofarasit purportstoauthori zeinspectionswithoutwarrantoritsequivalentandhasenjoinedenforcement . " oftheActtotheextentit authorizeswarrantlessinspections.Thus, theCourthasupheldPocatello,Idahoplumbingandelectricalcontractor BillBarlow,who,onthemorningofSeptember11,1975,refusedtoadmit anOSHAinspectorintothenon-publicareaofhisbusinesspremisesin theabsenceofasearchwarrant.'