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How to Inspect My Attic for Leaks After a Storm?

Last updated October 31, 2026

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The short answer

Start with Safety

Before you climb into the attic, make sure the power is off to any fixtures or wiring that might be wet. Use a flashlight and wear gloves to protect against sharp edges or debris. If the attic is flooded or the ceiling is sagging, do not enter. Call a professional instead.

Storms can bring down power lines or cause structural damage. If you smell gas or hear hissing, leave the house and call your utility company. Your safety comes first, and a quick visual check is only safe when the attic is dry and stable.

Look for Water Stains

Water stains are often brown or yellow and may appear on the underside of the roof deck, rafters, or insulation. Check around chimneys, vents, and roof valleys, as these are common leak points. Stains can be small or spread over a large area, so inspect every corner.

If you see fresh stains, touch them gently. If they feel damp, the leak is active. If they are dry, the leak may be old, but it could still return. Take photos of the stains and their location to share with the pros later.

  • Check around chimney flashing
  • Inspect roof valleys and joints
  • Look at vent pipes and skylights
  • Examine the ridge line for gaps
  • Feel insulation for dampness

Check Insulation and Vents

Wet insulation loses its ability to keep your home warm and can become a breeding ground for mold. Press down on the insulation with your hand to see if it feels soggy or matted. If it does, that section likely has a leak above it.

Also check the attic vents and soffit openings. Storm winds can push rain through these gaps. Look for water trails on the wood or dark streaks on the insulation. If you find any, note the area and keep the attic ventilated to start the drying process.

Spot Daylight or Sagging

On a sunny day, turn off the attic lights and look for beams of light coming through the roof. Any visible daylight means there is a hole or gap. This could be from missing shingles, cracked flashing, or a seam that has opened up.

Sagging sections of the roof deck or ceiling indicate trapped water. Gently press on the sagging area with a broom handle to see if water drips. If it does, place a bucket underneath and contact the pros for an inspection and drying.

  • Look for beams of light
  • Notice any sagging or bowed wood
  • Check for dark, soft spots on the deck
  • Feel for cold drafts near the roof
  • Look for rusted nails or fasteners

Document and Act

Take clear photos of any stains, damp spots, or visible gaps. Note the date and the exact location. This information is useful for the pros and for your insurance company. Keep a written log of what you find.

If you live in Quincy, keep your shutoff valve location written down. After a storm, it is wise to act quickly. Call local water damage pros to inspect and dry the area. They can also check for hidden moisture that you might miss. Policies vary, and your insurer decides what is covered.

Water damage does not wait

Water keeps spreading into floors and walls, so it is worth acting early. Calls are answered 24/7.

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Frequently asked questions

How long should I wait before checking the attic?

Wait until the storm has passed and it is safe to move around. If there is standing water or downed power lines, stay away. Once the rain stops, you can do a quick visual check. If you are unsure, wait a few hours for the roof to dry slightly.

What if I find mold in the attic?

If you see mold, do not disturb it. Breathing in mold spores can be harmful. Leave the attic and call a mold professional for an assessment. They can identify the type and recommend safe removal. Until then, keep the attic closed off from the rest of the house.

Can a small leak wait until the weekend?

A small leak can quickly become a big problem. Water can soak into insulation and wood, leading to rot and mold. It is better to address it soon. Call the pros to inspect and dry the area. Waiting can increase the damage and the cost to repair.

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