b'BUILDING CODELets consider a roof over a heated structure that checks off all the other boxes:itislow-sloped(lessthan1:3, withreferencetoSubsection9.26.8.), itisbuiltwithoverhangsgreaterthan 900 mm, and the building is situated in Climate Zone 4, which historically has fewer than 3,000 HDD (see the map and tables in Figure 4 7 ). By all accounts, eave protectionshouldntberequired.AndFigure 5roofs with slopes less than 1:3 are pretty common in residential construction. But did you read through Subsection 9.26.8.?No,ofcoursenot,because wewentstraightforthejugularby focusing on Article 9.26.5.1., didnt we?Article 9.26.8.4., Securing of Shingle Roof ConsultingCourses, requires that the first course of shingles be secured by a continuous band of cement along the eaves applied so that the width of the band equals the shingleexposureplus100mm.The nexttwosentencesrequireasimilar band of cement for subsequent courses of shingles, equal to the shingle expo-sureplus50mm,appliedjustabove theimaginarylinewherethebuttfor the overlying course of shingles lies (Figure 5).What I have just described may have been fine once upon a time, but lami-nated(multi-layered)shinglesarethe predominantproductintodaysB.C. market, and this method is not accept-able when they are installed on slopes under4in12.Infact,atleastone manufacturer of laminated shingles will void the shingle warranty if their shin-gles are fully cemented in a low-slope application. And if they wont warranty the shingle, a RoofStar Guarantee wont attach either. So, what gives?OnecluecanbefoundinTable Roof Condition Assessments & Surveys9.26.3.1.,RoofingTypesandSlope Roof System Design & Contract ManagementLimits.Inthetable,youwillfind Green Roof Design Warranty & Maintenance Reviewtwotypesofasphaltshingleslisted Infrared Thermographylow-slopeapplicationshingles,and Roof Access & Fall Protection - Design & Testingso-called normal application shingles. Roof Asset Management & Capital PlanningYes, go back and read it again. Youre RCABC Approved Observerseyes didnt trick you. It says low-slope application shingles. You may remember low-slope shin- Creative Thinking Practical Resultsglesthewide,two-tabshinglesthatVancouver & Surrey 604-738-0048 Victoria 250-386-7794 weremadespecificallyforlow-sloperjc.caapplications. They havent been manu- Nanaimo 250-716-1550Kelowna 778-738-1700facturedinNorthAmericaformore www.rcabc.orgl17'