Suprisingly little when you think about it. If a failure is observed in field testing, it's usually well below the design pressure classification of the installed product.Think about it, well below.
Field testing is a great tool to ensure your skilled tradesmen are paying attention to detail and remain focused on the project goal of delivering a watertight envelope.
Test early & often; make sure when the wind does blow, your reputation for quality construction is tied down nicely.
info@reconwindowtesting.com for any questions you might have regarding specifications on your project.
