2025 Storm Events in Seattle
Recent severe weather that may have damaged roofs in your area
Winter storms with high winds
Affected Areas:
King County, Pierce County, Snohomish County
Downed trees, power outages, roof damage from debris and wind

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Climate Considerations in Seattle
Understanding Seattle's weather patterns helps you choose the right roofing materials and plan your project timing.

Photo by Alex Gorey on Unsplash
Over 150 days of rain annually with high humidity
Persistent moisture leads to moss and algae growth on roofs
Windstorms can lift poorly-secured shingles
Best Months
Avoid if Possible
- Metal roofs reflect solar heat, reducing cooling costs in summer
- Proper attic ventilation critical for moisture management
- High-quality underlayment essential for moisture protection
- Well-insulated attic reduces heating costs during wet, cold winters
The Pacific Northwest's wet conditions accelerate wear on roofing materials in ways that homeowners from drier climates might not anticipate. Continuous moisture exposure can cause asphalt shingles to lose their protective granules faster than the manufacturer's lifespan might suggest. Cedar shake roofs, while iconic to the region, require vigilant maintenance to prevent rot and fungal growth that the damp climate encourages. Even small gaps in flashing or minor shingle damage that might go unnoticed elsewhere can quickly become serious leaks under Seattle's relentless drizzle.
Beyond the rain, Seattle experiences seasonal weather patterns that compound roofing stress. Fall windstorms regularly bring gusts of 50-60 miles per hour that can lift improperly secured shingles and send debris crashing onto rooftops. Winter brings occasional snow and ice, creating freeze-thaw cycles that exploit any existing cracks or vulnerabilities in roofing materials. These temperature swings between seasons cause materials to expand and contract, gradually loosening fasteners and breaking down sealants over time.
The good news is that Seattle's climate is predictable enough that homeowners can plan accordingly. The dry summer months from June through September provide an ideal window for roofing projects, allowing materials to properly seal and cure. Smart Seattle homeowners schedule annual inspections before the rainy season arrives in October, giving contractors time to address any issues before winter storms test their roof's integrity.
How Seattle's Climate Affects Materials
asphalt Shingles
Susceptible to moss and algae growth; requires regular cleaning
metal Roofing
Excellent rain shedding; smooth surface resists moss; low maintenance
cedar Shake
Susceptible to rot, moss, and fungal growth without regular treatment
composite Materials
Strong weather resistance; mimics traditional looks with better durability
Washington State requires all construction contractors, including roofers, to register with the Department of Labor and Industries (L&I). This registration ensures contractors meet bonding and insurance requirements that protect homeowners. General contractors must carry a surety bond and maintain general liability insurance, providing financial protection if something goes wrong during your project. Before hiring any roofer, you can verify their active registration status through L&I's online verification tool at secure.lni.wa.gov/verify, confirming they are legally authorized to perform roofing work in Washington.
When evaluating potential contractors, ask specific questions about their experience with Seattle's climate challenges. How do they address moss prevention during installation? What underlayment products do they recommend for moisture protection? Do they use in-house crews or subcontractors? Companies using their own trained employees typically deliver more consistent quality because the same team handles every project. Established Seattle contractors like RoofSmart, Valentine Roofing, and Guardian Roofing have built their reputations on this in-house crew model.
Red flags should prompt you to look elsewhere. Be wary of contractors who pressure you to sign immediately, offer bids dramatically lower than competitors, request large upfront payments before work begins, or cannot provide license and insurance documentation upon request. Legitimate contractors welcome questions about their credentials and happily provide references from recent Seattle projects. The BBB A+ accreditation many top Seattle roofers maintain indicates a track record of resolving customer concerns professionally.
Verifying contractor credentials takes minimal time but provides significant protection. Beyond checking L&I registration, confirm active general liability insurance coverage and ask for the contractor's certificate of insurance. Request a list of recent projects in your area and actually contact those homeowners to ask about their experience. Quality contractors expect this due diligence and appreciate working with informed homeowners.
Roofing Materials for Seattle
Metal roofing has emerged as an outstanding choice for Seattle's rainy conditions and ranks among the most durable options available. Metal roofs excel at shedding water quickly, preventing the pooling and moisture penetration that troubles other materials. Their smooth, non-porous surfaces naturally resist moss and algae growth, eliminating one of the most persistent maintenance challenges for Seattle homeowners. With lifespans reaching 40 to 70 years and minimal upkeep requirements, metal roofing delivers exceptional long-term value. Modern metal roofing comes in standing seam and stamped panel styles that complement both contemporary architecture and traditional Seattle Craftsman homes. The material also reflects solar heat, contributing to energy efficiency during warmer months.
Architectural asphalt shingles remain the most popular choice for Seattle homes, offering a practical balance of performance and versatility. Their thicker, layered construction provides substantially better water resistance than basic 3-tab shingles, with quality architectural shingles lasting 25 to 35 years under proper maintenance. However, Seattle homeowners should expect to invest in regular cleaning every two to three years to prevent moss buildup, which can lift shingle edges and allow water infiltration over time.
Composite roofing represents a compelling modern solution for Pacific Northwest conditions. These engineered materials mimic the appearance of cedar shake or slate while offering superior weather resistance and 40 to 50 year lifespans. Composite roofing resists moisture, moss, and rot far better than the natural materials it emulates, making it ideal for homeowners who appreciate the classic Northwest aesthetic without the intensive maintenance commitment.
Cedar shake carries significant historical importance in Seattle, gracing countless Craftsman homes throughout the city's established neighborhoods. While beautiful and naturally insulating, cedar demands the most maintenance of any material in Seattle's wet climate. Without regular treatment and cleaning, cedar becomes susceptible to rot, moss, and fungal growth that can compromise its integrity. Homeowners choosing cedar should plan for ongoing maintenance as part of their long-term ownership commitment.
Roofing Permits in Seattle
Residential roofing permits are typically processed within one to five business days for simple projects, though complex applications take longer. Simple projects may qualify as Subject-to-Field-Inspection permits, which move through the system more quickly and receive approval within a shorter timeframe. Applications are submitted through the Seattle Services Portal, where homeowners or their contractors can track progress and respond to any reviewer questions.
Most reputable Seattle roofing contractors handle the entire permitting process as part of their service, ensuring all work meets current building codes and passes required inspections. Homeowners should confirm their contractor's approach to permitting before signing any contract, as unpermitted work can create complications during home sales and may void manufacturer warranties. Minor tear-offs and shingle swaps on single-family and two-family homes may not require permits in some circumstances, but verification with SDCI is always recommended before beginning work.
Choosing a roofing contractor in Seattle
Start by seeking contractors with proven local experience and verifiable credentials. Companies like RoofSmart, with 14 years serving the Greater Seattle area and Owens Corning Platinum Preferred certification, demonstrate the commitment to quality that protects homeowners. Elite Roofing's 25-year track record across King, Pierce, and Snohomish counties shows the kind of longevity that indicates consistent quality. Look for BBB accreditation with A+ ratings and strong Google reviews exceeding 4.5 stars across hundreds of verified customers.
Pay attention to whether contractors use in-house crews or subcontractors. Companies using their own trained employees typically deliver more consistent quality and accountability than those relying on variable subcontractor teams. Ask specifically about their experience with Seattle's climate challenges, including moss prevention, proper ventilation installation, and moisture management techniques.
Obtain detailed written estimates that itemize all work, materials, and potential additional costs. Beware of contractors offering unusually low bids, requesting large upfront payments, or pressuring you to sign immediately. Quality contractors provide thorough inspections, explain their findings clearly, and give you time to make informed decisions without high-pressure tactics.
Local Insights
Capitol Hill presents its own character with historic mansions and Victorian-style apartment buildings, many covered in ivy and featuring ornate architectural details that complicate roofing work. The neighborhood's mature trees create shaded conditions where moss thrives, making regular roof maintenance essential. Over in Ballard, the roofing landscape reflects the neighborhood's evolution from Scandinavian fishing community to trendy urban hub, with traditional Craftsman homes sitting alongside modern infill construction requiring contemporary roofing solutions.
West Seattle offers a mix of 1940s-1950s war-era homes alongside newer construction, while Wedgwood's post-WWII cottages represent more modest roofing projects with straightforward rooflines. Magnolia's hillside homes often feature custom contemporary designs with unique roofing challenges, including extensive flat roof sections on mid-century modern homes. Across all neighborhoods, Seattle's HOA presence remains relatively light in established areas compared to newer suburban developments, though homeowners in planned communities should always verify roofing material and color requirements before beginning work. The city's persistent moisture means that regardless of neighborhood, proper ventilation, quality underlayment, and regular moss treatment remain universal priorities for protecting Seattle homes.
Verified roofing contractors
Verified local contractors serving Seattle, Washington. All contractors are licensed and insured for roofing work in your area.
RoofSmart
Family-owned, uses in-house crews only, specializes in meticulous installations
Elite Roofing & Remodel
4.9 · 500 reviews
Valentine Roofing
4.8 · 400 reviews
Guardian Roofing
4.8 · 350 reviews
Pro Roofing NW
4.8 · 250 reviews
Sound Roof Services
4.7 · 150 reviews
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Specialties
Over 50 years in business, based in Olympia, serves Greater Seattle
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Interior Signs
- Water stains on ceilings or walls
- Dripping or active leaks during rain
- Dark stains in attic
- Damp or moldy insulation
- Musty smells in attic space
- Daylight visible through roof boards
Exterior Signs
- Missing, cracked, or curled shingles
- Heavy moss or lichen growth lifting shingle edges
- Granules collecting in gutters
- Visible bare spots on shingles
- Sagging roof sections
- Damaged or missing flashing around chimneys and vents
- Shingles that are brittle or crack when flexed
25% Rule: If damage is localized and the roof is under 15 years old, repair is usually sufficient. If the roof is 18-25+ years old with widespread damage, recurring leaks, or significant structural issues, replacement is the better investment.
Seattle at a Glance
Local neighborhoods, climate conditions, and landmarks that influence roofing decisions

Wallingford
Gas Works Park with Lake Union and Wallingford neighborhood in Seattle
Photo by Zoshua Colah on Unsplash

Capitol Hill
Ivy-covered brick apartment building in Capitol Hill Seattle
Photo by Dylan Fout on Unsplash

Residential Area
Aerial view of downtown Seattle buildings and rooftops
Photo by Josh Hild on Unsplash

Local Climate
Seattle skyline with dramatic cloudy sky and Mount Rainier visible
Photo by Alex Gorey on Unsplash

Local Landmark
Space Needle with Puget Sound and Olympic Mountains in Seattle
Photo by Josh Hild on Unsplash
Frequently Asked Questions
Common questions about roof replacement in Seattle, Washington
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