Homeowner Guide

Why Is My Roof Leaking After a Storm?

A leak that shows up during or right after a Colorado storm is one of the more urgent calls we get, and it can trace back to a few different causes depending on what kind of storm hit — high wind, hail, or heavy rain all stress a roof differently.

The Most Common Causes

Roughly in order of how often we see them after storm events:

• Wind-lifted or missing shingles — high wind can lift shingle edges or tear them off entirely, creating a direct entry point for water
• Damaged or displaced flashing — the metal strips sealing roof joints (around chimneys, vents, valleys) are especially vulnerable to wind uplift and can let water in even with shingles intact
• Pre-existing hail damage finally failing — a shingle weakened by an earlier hailstorm can fail completely during a subsequent heavy rain, even if the hail itself didn't cause an immediate leak
• Clogged or damaged gutters — storm debris can back up gutters, causing water to pool and find its way under roof edges instead of draining normally
• Ice dam formation — in colder parts of Colorado, melting snow refreezing at the roof edge can force water backward under shingles

What to Do Right Away

If you see active water intrusion, containing the immediate damage (a bucket, moving valuables) matters more than diagnosing the exact cause in the moment. Once it's safe, document what you can see — water stains, visible damage from the ground, timing relative to the storm — since that helps both the repair diagnosis and any insurance claim. Avoid getting on the roof yourself after a storm; wet, storm-damaged roofing is a real fall hazard, and that's exactly the kind of inspection we handle. Inside the house, a stain on the ceiling is rarely located directly beneath the actual breach in the roof — water travels along the underside of the decking and down rafters before it finds a low point to drip from, sometimes traveling several feet from the true entry point. That's worth knowing before assuming the repair is as simple as patching whatever is directly above the visible stain.

• Move furniture, electronics, and anything water-sensitive away from the affected area immediately.
• Place a container to catch dripping water and, if the ceiling is visibly bulging, consider carefully relieving pressure through a small controlled hole rather than letting it collapse on its own.
• Photograph the interior damage and, once safe, any visible exterior damage from the ground — both matter for diagnosis and for a potential claim.
• Avoid running attic fans or HVAC systems that could spread moisture further until the source is found and contained.

This content is reviewed by the Colorado Roof Repair editorial team and informed by licensed-contractor sourcing, manufacturer documentation, and established industry standards for roof repair. Read our editorial standards.