b'Technical ArticleContinued from page 1.Also, samples for R-value verifi- The report identified 30 manu- as those identified as conforming cation are selected quarterly fromfacturing plants from seven poly- in the previous 2022 quarterly re-normal distribution sources by aisocyanurateinsulationmanu- port. One manufacturing plant lo-third-partytestinglaboratory.Afacturersthatconformedwithcation has been added, and one hasNew OIRCA MembersrepresentativesampleisselectedQualityMark.Sixoftheseplantsbeen removed from the list.foreachparticipatingmanufac- from two different manufacturersAlso, only two of the manufac- The OIRCA Board of Directors is pleased to turersmanufacturingplantlo- are identified as having a pendingturingplantlocationsfromonewelcome the following new member:cations.Afterselection,samplesresultfortheirLTTRcertifica- manufacturer on the July-Septem-are held and conditioned at stan- tions. This reportedly means theyber 2022 conformance report are dardlaboratoryconditionsforonly have one quarter of success- identifiedashavingpendingre-180 days. Then, the full thicknessful R-value verifications under thesults for their LTTR certifications. Apex Surety & Insurance Ltd. (Industry Membership)samples are tested for R-value ac- current program procedures. The status of the three manu- 242 Gold StreetScott Gilmour cordingtoASTMC518,Stan- Also,threemanufacturingfacturing plants that recently had dard Test Method for Steady-Stateplant locations from three manu- beenbroughtonlineremainun- Sudbury, ONP3E 6A4scott.gilmour@apexsuretyThermal Transmission Propertiesfacturers are identified as recentlychanged from the April-June 2022Tel: 204-560-2508www.apexsurety.caby Means of the Heat Flow Me- havingbeenbroughtonline;theconformance report.terApparatus. reporting period occurred before A plant location is deemed tothe specific locations started com- My ThoughtscomplywiththeQualityMarkmercialproduction,andtheyPIMAs revisions to its Quali-program when its tested R-value atcould not complete initial LTTRtyMarkprogram,includingthe 180 days is equal to or greater thancertification. public availability of the quarterly theLTTR-certifiedvaluefortheIt is worth noting in addition toconformance reports, brings add-same thickness of product. Plantthe manufacturer that is not par- ed credibility to the program andare still permitted to use the Quali- ASTM International designation, locationsreceivingnonconform- ticipatingintheprogram,plantstheparticipating(andconform- tyMark label. Current conformanceboard size and thickness and not ingR-valueresultsintwocon- fromseveralmanufacturersareing)manufacturers.Iapplaudinformation should be more readilyits LTTR or R-value.secutive quarters are not in confor- not included in the list of plantsthese efforts. available.mance with the program. andmanufacturerscomplyingHowever,itisunclearhowAdditional information about This 180-day, R-value verifica- withtheQualityMarkprogram.manufacturers and manufacturingAlso,itisunclearhowcon- polyisocyanurateinsulationused tion testing is a noteworthy updateThis omission indicates these spe- plant locations currently comply- formancecanbeappliedtopoly- in low-slope membrane roof sys-to the QualityMark Program. cificlocationsdidnotconforming with the QualityMark programisocyanurateinsulationprocuredtems is available in Chapter 4-Rig-In February, PIMA publishedwith QualityMark during the re- can be readily identified by polyiso- throughprivate-labelsources.Inid Board Insulation ofThe NRCA itsfirstquarterlyQualityMarkporting period. cyanurate insulation users. Use ofthese situations, the manufacturingRoofing Manual: Membrane Roof conformancereportforAprilInApril,PIMApublisheditsthe QualityMark designation iden- plant location and original manufac- Systems2023. NRCA members throughJune2022.Thelagbe- quarterly conformance report fortifies manufacturer participation inturer is not readily known by users. candownloadthismanualfree; tweenthereportingperiodandJulythroughSeptember2022.the program not manufacturer orNRCA maintainsitslong-February publication date largelyThisreportidentifies30manu- specific manufacturing plant loca- standingrecommendationthathardcopiescanbepurchased is attributable to the 180-day con- facturing plants from seven manu- tionconformance.Participatingrigidboardinsulation,includingatshop.nrca.net.ditioningperiodfortheR-valuefacturersascomplying;however,nonconformingmanufacturerspolyisocyanurateinsulation,beMarkS.GrahamisNRCAs verification samples. these 30 plants are not the sameand manufacturing plant locationsspecified and procured based on itsvice president of technical services. 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