Direct Answer The insulation type can affect the fire rating of a commercial roof assembly because the roof is evaluated as a complete tested assembly rather than by looking at…
- August 14, 2026
How do I know if my existing roof contains asbestos?
Direct Answer You generally cannot determine whether an existing commercial roof contains asbestos simply by looking at it. The reliable way to determine whether suspect roofing materials contain asbestos is…
- August 14, 2026
Do roof coatings carry their own fire ratings?
Direct Answer Roof coatings do not automatically carry their own independent Class A, B, or C roof fire rating. In commercial roofing, the fire classification generally applies to the tested…
- August 14, 2026
How do expansion joints in edge metal work?
Direct Answer Expansion joints in edge metal allow the roof-edge metal to accommodate movement caused by temperature changes, building movement, and differences in how connected materials expand and contract. Without…
- August 14, 2026
What fire requirements apply to rooftop mechanical enclosures?
Direct Answer Rooftop mechanical enclosures can be subject to fire-resistance, construction, opening-protection, equipment, access, and fire-separation requirements depending on how the enclosure is classified and what equipment it contains. For…
Direct Answer OSHA citation history should be one factor in commercial roofing contractor selection, particularly when the contractor will perform fall-exposure work, hot work, tear-offs, crane operations, or other high-risk…
Direct Answer The fire rating of a commercial roof recover can differ from that of a new roof because a recover keeps the existing roof assembly in place, while a…
Direct Answer A wind mitigation inspection for a commercial roof is important because it documents features that can help a building resist hurricane and high-wind damage and can provide insurers…
Direct Answer Before a commercial roofing contractor mobilizes to a jobsite, the owner, general contractor, or construction manager should obtain documentation showing that the contractor’s workers have received the safety…
- August 14, 2026
What are the requirements for continuous cleats on edge metal?
Direct Answer Continuous cleats on commercial roof edge metal are used to provide continuous, concealed anchorage for coping, fascia, gravel-stop, and other perimeter edge-metal components. The cleat must be part…