b'J. Watson Roofing Consulting Inc. J. Watson Roofing Consulting Inc. 224 Seafield RoadJ Watson Roofing Consulting Inc.224 Seafield RoadVictoria BC, V9C 1S5 J Watson Roofing Consulting Inc.Victoria BC, V9C 1S5 (250) 634-4392 / e-mail: jwatson1@telus.net (250) 634-4392 / e-mail: jwatson1@telus.net www.watsonconsulting.ca Integrated roofing & waterproofing envelope solutions www.watsonconsulting.ca Integrated roofing & waterproofing envelope solutions for commercial, industrial and institutional clients. PMRATable 3: Summary of the impact of LTC on PMRA heat transfer performance. 2 K)] for commercial, industrial and institutional clients. PMRA U [W/(m U LTC [W/(m 2 K)]S1, R36, 35 psi 0.173 0.0174S2, R41, 40 psi 0.140 Quality consulting and inspection services for both (9.1-per-cent loss in R-value)0.0181(11.5-per-cent loss in R-value)S3, R47, 35 psi amethod was devel- 0.135 0.0033term cycling (LTC)WI, WVD andQuality consulting and inspection services for both (3.3-per-cent loss in R-value)oped, which combinescomprehen- new construction and re-roofing projects.FTcyclingintosingle, sivetestingprotocol(seeFigure2). This novel LTC approach differs from previousstudiesthattypicallytestedServing Metro Vancouver for 123 years!individualinsulationboardsinisola-tion.Instead,thelong-termmoisturestudy focused on multi-layer XPS insu- lationassemblies,representativeofactualPMRAdesignimpacts, new construction and re-rprovidingamorerealisticfrom Strata Re-roofing Specialists CV7A 5G1 oofing projects.configurations, assessmentoflong-termmoistureunder Roofing & Guttersservice conditions.604.370.6288 Extensive testing was carried out on J. Watson Roofing Consulting Inc. www.crownroofingltd.comXPS insulation used in PMRA systems atson Ro J. Watson22 R4 Sooeaffinielg d RoaConsud lt ing Inc.encompassing a range ofconfigurationsJ Watson Roofing Consulting Inc.Vi2c2t4o Srieafa BCiel, Vd Roa9C 1d S5including single boards, stacked boardsJ Watson Roofing Consulting Inc. #118-11860 HammerSmith Way, Richmond, BVictoria BC, V9C 1S5 (250) 634-4392 / e-mail: jwatson1@telus.net and samples exposed to varying moisture conditions. The full dataset(250) 634-4392 / e-mail: jwatson1@telus.netthese www.watsonconsulting.ca tests is available in the researchreport.ated roofing & waterproofing envelope solutionsIntegr www.watsonconsulting.ca Toillustratethekeyfindings, 3 for commercial, industrial and institutional clients. TableIntegrated roofing & waterproofing envelope solutions presents a subset ofthis data, specifically for commercial, industrial and institutional clients. J. Watson Roofing Consulting Inc. chosen to highlight the impact ofJ Watson RoofingConsulting I nc. J. Watson Roofing Consulting Inc.long- J. Watsonson R RooooffiinnggConsultingInc. J. WatQuality consulting and inspection services for both J. Watson Roofinelg d Roa224 Seafi Consud lt ing Inc. termmoisturecyclingonthether J. Watson Roofing Consulting Inc. J. Watson Roofi iel sultmal224 Seaf ng Coonnsdt in S d Roadi nggIInnccJ Watson Roofing Consulting Inc.J. Watson22 R4224 Sooeafeaffiniielelg d Roa d l d RoaC utransmittance (U-value) of three repre- Consulting Inc. Vi22 nsulting Inc.Quality consulting and inspection services for both J Watson Roofing CoS a BCiel, Vd Roa9C 1d S5J Watson Ro ofing Consulting Inc.new construction and re-roofing projects. ct4 rieafJ W ofing Consulting Inc.oJ Watson Roofing Consulting Inc.Vi22 orieaf ield Road 224 Seaf eld Road ct4 S a BCi , V9C 1S5Vi2c2to Seaf d Roa1S5dVic 4 ria BCiel, V9C 1S5sentativePMRAs.ThetablenotJ Watson Roofing Consulting Inc.onlyJ Watson Roofing Consulting Inc.Victtooriiaa BCrBC, V, V99CC1S5new construction and re-roofing projects. J Watson Roofing Consulting Inc.(250) 634-4392 t / ri i -BC, V9C 1S5 n1@telus.net Victo r aBC, V wat S5 Vic o e amail: j 9C 1so(250) 634-4392 / e-mail: jwatson1@telus.net Victoria BC, V9C 1S5 displays the final thermal(2500))66334444339922//eemaimaill: : jjwwatatssoon1n1@@tteleluuss.n.netetdue to moisture ingress and224SeafieldRoad((22550) 634-4392 / e-mail: jwatson1@telus.net transmittancew w watson : jwatson1@telus.net (250) 634-4392 / e-mail consulting.ca 4w 2. (25 4 w 39 2/ee-mail: jwwatson1@tteleluuss.n.netet( 2500))66334-43 w.wat - sonc :s ing.c@values but also quantifies the relative loss- w / sonconsulting.ca Victoria,BC9 |250-391-7887www.wat mail ojnsatult on1 aIntegrated roofing & waterproofing envelope solutions w sullttiinngg cwwwwwwwaattssoonnccoonnsu caaIntegrated roofing & waterproofing envelope solutions Integrated roofing & waterproofing envelope solutions in thermal resistance (R-value) over time224SeafieldRoadVictoria,BC.watsonconsult tiinnggccaawww|250-391-7887ing.ca Integrated roofing & waterproofing envelope solutions Integrated roofing & waterpr wwwwwwaattssoonnccoonnssulw w ultoofing envelope solutions jwatson1@telus.net|www.watsonconsulting.cafor commercial, industrial and institutional clients. Integrated roofing & waterproofing envelope solutions Integrated roofing & waterpr oofing envelope solutions oofing & waterprfor commercial, industrial and institutional clients.retention.Integrated r cial, industrial and institutional clients. for commer oofing envelope solutions for commercial, industrial and institutional clients. jwatson1@telus.net|www.watsonconsulting.cainfluences the thermalrain of 224224SeafieldRoadVictoria,BC|250-391-7887 for commercial, industrial and institutional clients.for commercial, industrial and institutional clients.These results are critical in understandingfor commercial, industrial and institutional clients.for commercial, industrial and institutional clients.Quality consulting and inspection services for both Quality consulting and inspection services for both how long-term environmental exposureQuality consulting and inspection services for both Quality consulting and inspection services for both Quality consulting and inspection services for both Quality consulting and inspection seroofing pr vices for both new construction and re-roofing projects.performanceQuality consulting and inspection services for both new construction and re-r ojects.new construction and re-roofing proofing projects.ojects.vices for both Quality consulting and inspection sernew construction and re-rnew construction and re-roofing projects.PMRA systems. The data summarized innew construction and re-roofing projects.new construction and re-roofing projects.ojects.new construction and re-roofing pr Table 3 will directly inform the calcula- tion of 224SeafieldRoadVictoria,BC|250-391-7887the overall thermal transmittanceSeafieldRoadVictoria,BC|250-391-7887 oria, 224SeafieldRoadVictoria,BC|250-391-7887224SeafieldRoadVict BC|250-391-7887224SeafieldRoadVictoria,BC|250-391-7887 of PMRAs, as detailed in Equation 1 of 224SeafieldRoadVictoria,BC|250-391-7887 21 224SeafieldRoadVict |www |250-391-7887jwatson1@telus.net|wwwjwatson1@telus.netoria,BC .watsonconsulting.ca.watsonconsulting.ca224SeafieldRoadVictoria,BC|250-391-7887the report. jwatson1@telus.net|www.watsonconsulting.cajwatson1@telus.net|www .watsonconsulting.cajwatson1@telus.net|www.watsonconsulting.cajwatson1@telus.net|www.watsonconsulting.caFocusing now on Uin Equationjwatson1@telus.net|www.watsonconsulting.cajwatson1@telus.net|www .watsonconsulting.ca1, this term represents the additional heat224SeafieldRoadVictoria,BC|250-391-7887www.rcabc.orgl jwatson1@telus.net|www.watsonconsulting.cajwatson1@telus.net|www.watsonconsulting.ca'