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Why Do Some Homes Sustain More Damage From Same-Sized Storms?

Last updated October 26, 2026

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The short answer

Construction and Age

Older homes often have different building codes, materials, and settling that can leave gaps around windows, doors, and foundations. Newer homes might use water-resistant barriers and better drainage systems, but that depends on when they were built and how well they were put together.

The way a roof is pitched, the type of siding, and the foundation design all influence how water behaves. A flat roof with poor drainage can hold water, while a sloped roof sheds it quickly. Walls with proper flashing and weep holes let moisture escape instead of trapping it.

Maintenance and Upkeep

Regular upkeep matters more than you might think. Clogged gutters can overflow and dump water right next to your foundation. Missing shingles or cracked seals around vents allow rain to sneak in. Simple tasks like cleaning gutters and checking caulk can prevent a storm from turning into a flood.

If you live in Bellingham, keep your shutoff valve location written down. A storm might knock out power or cause a pipe to burst, and knowing where to shut off water can limit damage. Also, trim trees near your roof so branches don't scrape or break during high winds.

Water Entry Points

Water finds the path of least resistance. Cracks in the foundation, gaps around utility lines, and poorly sealed windows are common entry points. Even a small opening can let in a surprising amount of water during a heavy storm, especially if wind drives rain sideways.

Basements are especially vulnerable because they sit below grade. If the soil around your foundation slopes toward the house, water pools and seeps through. Proper grading, downspout extensions, and sump pumps can help, but they need to be in good working order before the storm hits.

What to Check Before a Storm

Walk around your home and look for obvious issues. Check the roof for missing or damaged shingles, ensure gutters are clear, and verify that downspouts direct water at least a few feet away from the foundation. Look at the ground slope and add soil if needed.

Inspect windows and doors for gaps, and replace worn weatherstripping. Test your sump pump by pouring water into the pit. If you have a crawl space, check for standing water or dampness. These small steps can reduce the chance of water getting in.

  • Clear gutters and downspouts before the rainy season
  • Trim branches that hang over the roof
  • Seal cracks in the foundation and around pipes
  • Check that window wells are clean and have covers
  • Test your sump pump and battery backup
  • Know where your main water shutoff valve is

When Damage Happens

After a storm, water damage can spread quickly. The longer water sits, the more it soaks into drywall, wood, and insulation. Mold can start growing within a day or two, so acting fast is important. You might want to call local water damage pros to assess the situation.

They can inspect hidden areas like behind walls and under floors. Documenting the damage with photos and notes helps you track what happened. If you have insurance, check your policy to understand what is covered. Policies vary, and your insurer decides what is covered.

  • Call a plumber if a pipe burst or you suspect a leak
  • See a doctor if you feel unwell after cleanup
  • Keep receipts for any purchases like fans or dehumidifiers
  • Do not enter a room with standing water near electrical outlets

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Frequently asked questions

Can I prevent all storm damage?

No, you cannot prevent every storm from causing some damage. But you can reduce the risk by keeping your roof, gutters, and drainage in good shape. Even with maintenance, a severe storm can overwhelm defenses, so be prepared to act quickly if water gets in.

What should I do first if water enters my home?

Turn off the electricity if water is near outlets or appliances. Then, stop the water source if you can, such as shutting off the main valve for a burst pipe. Move valuable items to a dry area and call a professional for help with cleanup.

How can I tell if my home is at risk?

Look for signs of past water damage like stains, musty smells, or peeling paint. Check the slope of your yard and the condition of your gutters. If you live in an older home, consider having a professional inspect the foundation and roof for weak points.

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