How to Check for Roof Leaks After an Arizona Monsoon

Arizona monsoons can hit hard and fast. Heavy rain, high winds, blowing debris, and sudden downpours can expose roofing problems that may not have been noticeable during the dry months.

Here’s what to check first:

1. Look at Where the Water Is Showing Up

Start inside your home. Look for:

• • • Water stains on ceilings or walls
    • Damp drywall
    • Bubbling or peeling paint
    • Water around ceiling vents or light fixtures
    • Moisture in the attic
    • Wet insulation
    • Musty smells

Keep in mind that where you see water inside isn’t always directly below the roof leak. Water can travel along rafters, pipes, or other surfaces before becoming visible.

If water is near an electrical fixture, avoid touching the area and shut off power to that circuit if you can do so safely.

2. Check the Attic

If your attic is safely accessible, take a flashlight and look for signs of moisture. Pay attention to:

• • • Wet roof decking
    • Dark or discolored wood
    • Damp insulation
    • Water trails along rafters
    • Moisture around vents, pipes, or chimneys

During or shortly after a storm is often the easiest time to identify where water is entering.

3. Look for Visible Storm Damage From the Ground

You don’t need to climb onto your roof to spot many common problems. From the ground, look for:

• • • Missing or lifted shingles
    • Broken or displaced roof tiles
    • Debris on the roof
    • Damaged flashing
    • Loose gutters
    • Tree branches touching or resting on the roof
    • Damage around vents or roof penetrations

Arizona monsoon winds can move tiles, lift roofing materials, and send branches or debris onto a roof even when the storm doesn’t seem especially severe.

4. Check Roof Penetrations

Many roof leaks happen around areas where something passes through the roofing system. Common trouble spots include:

• • Plumbing vents
  • HVAC equipment
  • Exhaust vents
  • Skylights
  • Chimneys
  • Satellite or equipment mounts

The roofing material itself may be fine while flashing, sealants, or surrounding materials have deteriorated.

5. Check Flat Roof Areas and Drainage

Flat and low-slope roofs are common throughout the Phoenix area.

After a monsoon, look for signs that water isn’t draining properly. Clogged scuppers, drains, or gutters can allow water to collect on the roof and eventually find a way inside.

Standing water can also reveal low areas or drainage problems that should be addressed before the next storm.

Don’t Assume You Need a New Roof

A leak does not automatically mean your entire roof needs to be replaced.

Depending on the cause, the repair may be relatively localized — such as replacing damaged tiles, repairing flashing, sealing a penetration, or fixing an area damaged by wind or debris.

The key is determining why the leak happened instead of simply covering the visible problem.

What to Do Until the Roof Can Be Inspected

If water is actively entering your home:

• Place a bucket or container beneath the leak.
• Move furniture and belongings away from the area.
• Dry wet surfaces as quickly as possible.
• Photograph visible damage for your records.
• Avoid climbing onto a wet roof.

If ceiling drywall begins sagging significantly from trapped water, stay clear of the area because saturated drywall can collapse.