Tacoma’s Climate and Your Roof: What Homeowners Need to Know
Tacoma, WA, experiences heavy rainfall, windstorms, and moss growth, all of which can shorten a roof’s lifespan. Whether your home has asphalt shingles, metal roofing, or flat roofing, knowing the most common roofing issues in Tacoma can help you prevent costly repairs and extend your roof’s longevity.
In this guide, we’ll walk through the top roofing problems Tacoma homeowners face—and what you can do to protect your investment.
1️⃣ Moss and Algae Growth
Why It’s a Problem:
✔️ Tacoma’s damp climate fuels moss and algae growth, which can trap moisture and cause premature shingle deterioration.
✔️ Moss lifts shingles, allowing water to seep underneath and weaken your roof’s structure.
How to Prevent It:
Install algae-resistant shingles like Malarkey Highlander® or GAF Timberline HDZ®.
Apply moss-preventative treatments annually.
Trim overhanging trees to reduce shade and moisture buildup.
Related Resource: Malarkey Roofing Algae Resistance Guide
2️⃣ Roof Leaks and Water Damage
Why It’s a Problem:
✔️ Tacoma’s frequent rain and occasional storms can expose vulnerabilities in flashing, vents, and shingles.
✔️ Small leaks quickly escalate into costly interior water damage.
How to Prevent It:
Inspect flashing, skylights, and valleys for cracks or loose seals.
Keep gutters clean and clear to prevent overflow and water pooling.
Schedule annual roof inspections to catch minor leaks before they worsen.
Internal Resource: How to Spot Roof Leaks Before They Get Worse
3️⃣ Poor Attic Ventilation
Why It’s a Problem:
✔️ Without proper intake and exhaust ventilation, moisture builds up in your attic, leading to mold, rot, and insulation damage.
✔️ Poor airflow shortens the lifespan of your shingles by causing excessive heat buildup.
How to Prevent It:
Install ridge vents, soffit vents, or attic fans to maintain balanced airflow.
Check for condensation or musty smells in your attic—these are warning signs.
Ensure your attic insulation is properly installed to avoid trapping excess heat and moisture.
Related Resource: GAF’s Guide to Proper Attic Ventilation
4️⃣ Wind and Storm Damage
Why It’s a Problem:
✔️ Tacoma’s high winds can loosen or tear off shingles, leaving your roof vulnerable to water damage.
✔️ Improperly installed shingles are more likely to blow off during storms.
How to Prevent It:
Choose impact-resistant shingles (Malarkey Legacy® or GAF Timberline HDZ®).
Ensure shingles are properly nailed and sealed during installation.
After storms, inspect your roof for missing shingles and repair them ASAP.
Internal Resource: Why High-Quality Roofing Materials Matter
5️⃣ Aging and Worn-Out Shingles
Why It’s a Problem:
✔️ Most asphalt shingle roofs last 20–30 years, but Tacoma’s climate can cause early deterioration.
✔️ Shingles become brittle, cracked, or lose granules, reducing their effectiveness.
How to Prevent It:
If your roof is 20+ years old, consider a replacement before major leaks develop.
Schedule professional inspections every 2–3 years.
Invest in high-quality, weather-resistant roofing materials suited for Tacoma’s conditions.
Related Resource: How to Know When It’s Time for a Roof Replacement
How to Protect Your Roof Year-Round in Tacoma
✔️ Schedule Regular Inspections: Catch problems early to avoid costly repairs.
✔️ Invest in Quality Roofing Materials: Choose products designed for the PNW climate.
✔️ Work with Certified Roofing Professionals: Ensure expert installation and workmanship.
Need expert roofing advice? Contact Do It Right Roofing—we offer free inspections, instant pricing, and top-tier manufacturer warranties for Tacoma homeowners!
Call us today or visit our website for a free estimate!
