Commercial roof grades offer a fast, clear way to understand the condition of a roof at a glance. But the grade is only the starting point. Behind every letter, A through F, are the details that determine urgency, budget planning, and how much risk a facility is carrying.
At Commercial Roofing Contractors Dallas, we use a simplified A–F scale to help building owners, facility teams, and portfolio leaders make sense of inspection findings and plan ahead. This post explains what each grade means, and the real-world factors that can shift a roof from “borderline” to “urgent.”
Before a roof is assigned an A–F grade, it begins with a detailed on-site inspection performed by a certified Commercial Roofing Contractors Dallas technician. This inspection is the foundation of the entire Roof Condition Report — and ensures the grade reflects not only what the roof looks like today, but how it is likely to perform under future conditions.
During the inspection, our teams walk the entire roof and document:
Membrane condition, seams, flashings, terminations, and penetrations
Signs of wear such as alligatoring, scrim exposure, blistering, or failing details
Drainage performance, ponding areas, and downspout/gutter condition
UV exposure impacts, storm or wind-related deterioration
Previous repairs and whether they are holding or beginning to fail
Deck condition when visible from below, including rust, softness, or saturation
