— By Ramez Naguib, P.E. — Mitigating COVID-19 spread in restaurants using CFD analysis. The world is having an unprecedented time due to the pandemic. Currently, more than 93 million people have been infected, and over 2 million people have passed away since 2020. SARS-CoV-2 has forced people to change their lifestyles and patterns. Under the pandemic, buildings are no longer safe shelters. The infected transmit infectious viruses to other occupants by direct contact or indirect contact (i.e., indoor airflow).i COVID-19 outbreaks were associated with droplet transmission that was …
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Duro-Last Earns Sustainability Certifications on All Single-Ply Roofing Membrane Products
by Katie Lee
Saginaw, Mich. — Duro-Last has achieved certifications for each of its roofing membranes under the NSF American National Standard for Sustainable Roofing Membranes — NSF/ANSI 347. Duro-Last is one of only two manufacturers to achieve the highest-level platinum certification.