b'CLEAN ENERGY Figure 3: Failure of PV systems and their impact on the roof assemblyCourtesy: Solar under storm (CJQ Engineering) Courtesy: FEMATask3isprogressingthisresearch ON THE JOB EARLY. informationtowardsdevelopingthe WORKING LATE. first North American standard for the JUST LIKE YOU. dynamic evaluation of the wind pressure The construction industry is demanding. The daysresistance of PVRA. are long and the competition is fierce. Thats why weOver the last two years, the project keep the same hours as you do, and back you up with a full range of products, accessories and tools. has advanced in developing a state-of-Top brands, experienced, knowledgeablethe-arttestapparatusforthedynamic staff and extended hours make us thetesting of the PV systems. This appa-trusted choice. ratus can test a 3 x 3 array system installed After all, you work hard to exceed your customers expectations, and so do we. on the roof assembly, both in portrait and landscape orientations. It can test the PV array system at different angles commonly installed in the field, from 5 degrees to 30 degrees. It also has the provision to test WE DELIVER. different inter-row spacings between the ROOFINGINSULATIONWATERPROOFING PV panels. The project has completed the preliminarytestingofdifferentPVRA SURREY, BC CHILLIWACK, BC MAPLERIDGE, BC PENTICTON, BC KELOWNA, BC VICTORIA, BC CALGARY, AB EDMONTON, ABTel: 604.596.3787 Tel: 604.795.7355 Tel: 604.463.4553 Tel: 250.770.2270 Tel: 250.765.3787 Tel: 250.652.8801 Tel: 403.262.1008 Tel: 780.454.1008 combinations and is racing towards devel-fax: 604.596.4559 fax: 604.792.2355 fax: 604.463.1298 fax: 250.770.2271 fax: 250.765.2271 fax: 250.652.8803 fax: 403.262.1018 fax: 780.454.1018 oping the CSA standard. ConclusionCleanenergyinitiativesarehereto stay, especially the roof-mounted solar panels. With the energy codes gearing totakeincrementalstepstomake buildingsnet-zeroenergyreadyand www.precisionmetals.ca asbusinessesandgovernmentsmove towards green initiatives, the PV will become a standard component of the Your Metal Specialists building envelope as a reliable renewable energy harvesting source. The ongoing T ested and certified byresearch work being conducted by NRC incollaborationwiththeroofingand Proudly made in Canada 8081, 132nd St. Surrey B.C.solar industry to create a PVRA wind 604.594.6001 pressure resistance standard will assure Producing premier Standard and Custom products for the construction industry since 1975 that PVRA integrity is maintained and the PV performance is optimized. SudhakarMolleti,Ph.D.,andMauricio Chavez,Ph.D.,areResearchOfficersinthe Roofing Systems and Insulation Group at NRC. 22lROOFINGBC l FALL 2020'