b'ROOF SYSTEMS ROOFSTAR 15 YEAR GUARANTEE PROGRAM A SHIFT IN CONSTRUCTION STANDARDS I nresponsetoinquiriesfrombuildingownersandWhile long-standing 5 Year and 10 Year RoofStar Guarantees DesignAuthoritieswhoaskedforalongerguar- arestillavailableforasphaltshingle,cedar,hotrubberized anteeterm,RCABClaunchedtheRoofStar15Yearasphalt and PMMA roof systems, they are not yet included in Guarantee in January 2021, available through RCABCthe 15 Year program extension. Membercontractors.Bothnewconstructionandroof replacement projects are eligible for the RoofStar 15 YearEnhanced Guarantee StandardsGuarantee,whichrepresentsasignificantshiftinsystemProjects will qualify for the RoofStar 15 Year Guarantee only design and construction standards over the ubiquitous 5 Yearif they are designed and built using enhanced standards that and 10 Year terms. In this short article well show you whysupplement the requirements already in place for the 5 Year the RoofStar 15 Year Guarantee is worth your consideration. and 10 Year Guarantee terms. These enhanced requirements address a variety of issues, including roof design, permissible Qualifying Roof Systems materials, construction requirements and roof access so that RCABC offers the RoofStar 15 Year Guarantee for themaintenance work can be performed.following roof systems: EachqualifiedmembranesystemstandardpublishedinSBS Modified Bitumen Membrane Systems the RPM lists a summary of the RoofStar 15 Year Guarantee EPDM Membrane Systems requirements in Part 1. Linked references to the various Parts in the Standard allow the reader to rapidly navigate the StandardTPO Membrane Systemsand review the specific Guarantee requirements.Each Part thatPVC Membrane Systemscontains RoofStar 15 year Guarantee requirements normallyArchitectural Sheet Metal (ASM) Systems displays them at the beginning of a section. Thefollowingisarepresentativelistoftheaddi-tionalrequirementsforSBS,EPDM,TPO,PVCRoof Waterproofing Systems:1. Roof systems must be designed and constructed to meet both the RoofStar 15 Year Guarantee requirements and the membrane manufacturers 20 year System Warranty.2.Roofs must include adequate access tofacilitate maintenance.3. All roofs must be built with a minimum slope of 2per cent. This can be achieved by the roof structure or with sloped insulation.4. An insulation overlay is required on all ConventionallyInsulated Roof Systems.26lROOFINGBC l WINTER/SPRING 2021'