b"PHOTOVOLTAICS Richmond Firehall, installer Hakai Energy SolutionsSOLAR PHOTOVOLTAICSBY ROB MACINNISON BRITISH COLUMBIA ROOFSW earebeginningtonoticecompromisethebuildingenvelopeorair flow, while limiting exposure for wind the integration of rooftopstructuralcapacityofthefacilityonuplift. The array attachments penetrate solar systems on buildingswhich it is placed.theroof(shingleormetalRpanel) acrossBritishColumbiaTheStepCodeandotherregula- and provide a fixed connection to the morefrequently.Asweusherinnewtions are encouraging the inclusion of, orbuilding. In the case of standing seam mindsetsofsustainableenergygener- rough-in for, solar PV systems. Electricalmetal, a clamp specific to the profile will ation, we must also consider how theseconductors or wireways may be placed ingrip the seam and provide suitable attach-systems are incorporated to our new andthe walls of new builds. Allowances formentwithoutpenetration.Allracking existing buildings.additionaldeadloadingareprovisionedand hardware will either be aluminum or Solar Photovoltaics (PV) is the gener- in structural design. The roof surface onstainless steel and suitable for outdoor ation of electricity from a solar resource.which the solar array will be installed willuse in this application. Sloped roof PV Thishasbecomethemostcommondictate various characteristics of that array.arrays add approximately 3.5lbs/sq. ft. method to harvest the sun's energy andAPVsystemonaslopedroofisThisistypicallywithinthestructural convert it into a usable source for ourmounted in a parallel plane to the roofcapabilities of a standard open web truss homes and buildings.Careful consid- and about 3 off the finished surface.system,howeververificationshould erationmustbeappliedsoasnottoThis configuration provides convectionalbe performed.14lROOFINGBC l FALL 2020"