Structural damage is often the cause of roof leaks—holes, cracks, gaps, and external penetrations. Heavy rains, thunderstorms, and severe weather are some of the leading external causes of roof leaks. Inclement weather can cause trees to fall onto your roof, water to pool, or snow and ice to dam up drainage systems.
Fluctuating temperatures can cause flat roofs, single-ply, and membrane systems to experience thermal shock. Thermal shock causes roofing material to stretch and shrink, causing cracks, bumps, and deterioration. These blemishes can worsen if water is allowed to infiltrate or freeze inside them.
HVAC systems and other external to internal systems can also be the culprits of unwanted leaking. Water can find a way into your building from stripped flashing caused by strong winds and other external forces. Keeping your commercial roof airtight and properly maintained is the best way to prevent roof leaks.