Spray polyurethane foam (SPF) roofing systems are known for their durability, energy efficiency, seamless installation, and ability to protect commercial buildings from water intrusion. However, like any roofing system, SPF…
When planning a commercial roofing project, one of the most important decisions is how the roofing requirements will be defined. The project specification determines what contractors must provide and how…
- August 14, 2026
What is the internal pressure coefficient (GCpi) and how does it change roof design?
When engineers design a commercial or industrial roof for wind, they must consider more than the wind pushing or pulling on the outside of the building. Wind can also create…
When evaluating a commercial roofing system for wind resistance, one of the most important questions is how much safety margin should be applied to the tested uplift rating. In Florida,…
When designing a commercial roof for wind, one of the most important distinctions engineers and roofing professionals need to understand is the difference between Allowable Stress Design (ASD) and Load…
- August 14, 2026
How do I write a performance-based roofing specification?
Commercial roofing projects require clear expectations to ensure the completed roof system performs as intended. One of the most effective ways to define project requirements is through a performance-based roofing…
Rooftop screens, HVAC units, vents, solar equipment, pipes, mechanical systems, and other equipment can significantly affect how wind moves across a commercial roof. These components change the pressure distribution on…
Florida has strict contractor licensing requirements to protect property owners, ensure construction quality, and hold contractors accountable for the work they perform. Roofing is a regulated construction trade in Florida,…
Yes. ASCE 7-22 changes and updates the wind-load provisions that can affect rooftop solar arrays, including the way wind pressures are determined for certain photovoltaic (PV) panel configurations. These requirements…
Effective Wind Area (EWA) is an important factor in commercial roof wind design because it helps determine how much wind pressure a roof fastener, membrane attachment, or other roof component…