How Hot Summers and Foggy Winters Affect Your Roof

Your roof is one of the most important parts of your home — it protects your family, your belongings, and your investment. But here in the Central Valley, the weather is no small challenge. Hot summers, foggy winters, and the occasional storm all take a toll on roofing materials.

As a company with deep Lodi roots and over 50 years of roofing experience across California, Leonard Peterson, Inc. knows exactly how the local climate affects your roof. Here’s what you need to know — and how to keep your roof in top shape.

1. Hot Summers & Intense Sunlight

The Central Valley is known for its triple-digit heat and long stretches of sunshine. Over time, this causes:

• Shingle warping and cracking from UV exposure.

• Premature aging of underlayment and sealants.

What You Can Do:

• Consider cool roof options that reflect sunlight and reduce attic heat.

• Repaint or reseal exposed surfaces with UV-resistant coatings.

Intense Summer Sun Can Affect Your Roof | Photo Credit: Adobe.com

2. Fog & Moisture in Winter

While the Central Valley doesn’t get much rain compared to coastal areas, our winter fog and damp mornings still affect your roof:

• Moisture buildup can lead to moss or algae growth.

• Rotting underlayment if water seeps under shingles.

• Corrosion on metal flashings or fasteners.

What You Can Do:

• Trim trees around your home to improve airflow and reduce moss growth.

• Ask about moss- and algae-resistant shingles when replacing your roof.

• Clean gutters regularly to prevent water backup.

Homes in the Fog | Photo Credit: Adobe.com

3. Wind & Storms

The Central Valley isn’t as storm-prone as other parts of California, but we do get occasional high winds and winter storms. These can:

• Loosen shingles or even tear them away.

• Cause flying debris damage to roofs, siding, and paint.

• Expose vulnerable areas like chimneys and vents.

What You Can Do:

• After every major wind event, walk your property and look for missing shingles or damaged flashing.

• If your roof is over 20 years old, consider a full roof replacement for better storm resistance.

When to Call a Professional

Even the most careful homeowner can miss small issues that lead to costly repairs. At Leonard Peterson, Inc., we:

• Provide roofing, painting, and general contracting services tailored to California’s diverse climates.

• Have been trusted since 1969, starting right here in Lodi.

• Offer residential, commercial, and agricultural roofing solutions to fit every property type.

Protect Your Roof, Protect Your Home

Your roof is your home’s first defense against Central Valley weather. Don’t wait for a leak or costly damage before acting.

Call Leonard Peterson, Inc. today (209) 819-1077 for a roof replacement estimate in Lodi, Stockton, Sacramento and surrounding areas.