Tucson Faces Haboob and Microburst Roof Damage Risks
Tucson, Arizona, experiences significant wind damage to commercial flat roofs during the monsoon season, primarily from two sources: haboobs and microbursts. Haboobs, massive dust storms, bring sustained winds of 40-60 mph, carrying dense, abrasive dust that infiltrates roof seams and flashing laps, potentially leading to water damage during subsequent rains. Microbursts, on the other hand, produce concentrated downdraft winds of 60-80 mph over small areas, causing perimeter membrane lift, corner zone pull-off, and flashing cap displacement. These events often occur in July and August, with haboobs sometimes followed by rainstorms within hours, compounding the damage. Post-event inspections are critical to identify hidden issues like sand infiltration and fastener pullout, which may not be visible from below.
