Tension fabric structures have served a key role as a cost-effective facility solution for years. In some cases, users have turned to fabric buildings when brick-and-mortar construction is not economically feasible or would take too long to complete. In other cases, fabric is more suitable to the application in the first place, because its translucency provides natural daylighting, or due to the inherent corrosion-resistance of fabric cladding.
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When properly designed and installed, plumbing systems will provide many decades of problem-free service. Careful corrosion engineering management, including attention to details such as materials selection, fluid mechanics, water-chemistry control, protective coatings, cathodic protection, and suitable material corrosion allowance, should ensure these materials comfortably survive their design life. However, actions during the construction or renovation of a building can have unintended consequences that can dramatically reduce the service life of plumbing systems.
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Each year, curtain walls continue to soar higher, form angles that are more challenging, and push the building envelope closer to total transparency. A case in point is the Toronto Transit Commission’s (TTC’s) Vaughan Metropolitan Centre Station.
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The purpose of an accelerated corrosion test is to duplicate the field corrosion performance of a building material in the laboratory. This provides scientists and engineers with a means of quickly developing new products. For many years, the salt spray test has been used extensively for this purpose by researchers in the evaluation of new metallic coatings, paint coatings, types of chemical treatments, and paint pretreatments for use with metallic-coated steel sheet products.
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Prepainted metallic-coated steel sheet for buildings has been used successfully for many years. One indicator of its popularity is the large number of roofs made with prepainted steel in place across Canada and throughout the world.
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