Choosing the right roof style for your home in Edmonds isn’t just about looks; it’s about long-term performance, efficiency, and protection from our famously wet Pacific Northwest climate.
Whether you’re building a new home, considering an addition, or replacing your existing roof, one big question homeowners face is:
Should I go with a flat roof or a pitched (sloped) roof?
In this article, the experts at Blue and Blue Roofing break down the pros and cons of each option and explain which roof style works best for homes in Edmonds, Snohomish County, and surrounding areas.
What’s the Difference Between Flat and Pitched Roofs?
- Flat Roofs are not completely level, but have a very low slope (typically less than 10°) designed to drain water slowly.
- Pitched Roofs have a steeper incline and include common gable, hip, and shed-style designs that allow water and snow to run off more easily.
Both roof types can be installed on residential homes, but each comes with specific considerations, especially in a wet, coastal climate like ours.
Flat Roofs in Edmonds: Pros & Cons
Pros:
- Modern aesthetic: Flat roofs pair well with contemporary architecture, ADUs, and minimalist designs.
- Easier access: Great for rooftop decks, solar panels, HVAC placement, and maintenance access.
- Cost-effective installation: Often less complex and less material-intensive than pitched roofs.
- Space-efficient: Adds usable interior space (think modern boxy floor plans).
Cons:
- Drainage challenges: Flat roofs don’t shed water easily, which is a big concern in Edmonds’ rainy climate.
- Higher maintenance: Flat roofs require frequent inspections and sealing to prevent ponding and leaks.
- Shorter lifespan: Depending on materials used (like TPO, EPDM, or modified bitumen), flat roofs may not last as long as pitched ones.
Bottom Line: Flat roofs can work well for accessory dwellings, garages, and certain architectural styles but they require vigilant maintenance in a climate like Edmonds.
Pitched Roofs: Why They’re Popular in Snohomish County
Pitched roofs are by far the most common in Edmonds and throughout the Pacific Northwest and for good reason.
Advantages:
- Excellent water runoff: Sloped design allows rain and snow to run off quickly, reducing the risk of leaks or ponding.
- Longevity: Asphalt shingles, metal roofing, and tile roofs on pitched systems often last 30+ years.
- Versatility in materials: A wide range of roofing materials are available for pitched roofs, giving homeowners style flexibility.
- Better attic ventilation: Pitched roofs allow for vented attic spaces, which help regulate temperature and prevent moisture damage.
- Higher resale value: Most homebuyers in this region expect a pitched roof, which means more buyer appeal.
Disadvantages:
- More complex to build: Installation is more labor-intensive, especially with custom angles or dormers.
- Slightly higher cost upfront: Due to materials and complexity, pitched roofs may cost more initially – but the ROI is typically better over time.
Local Climate Considerations for Edmonds Homeowners
When choosing between flat and pitched roofing, it’s essential to consider our local climate in Edmonds and greater Snohomish County, which includes:
- High annual rainfall (40–50 inches per year)
- Heavy wind exposure, especially near the coast
- Occasional snow and freeze-thaw cycles in winter
- High tree coverage, leading to moss, debris, and clogged drains
In this context, pitched roofs offer clear performance advantages, particularly when paired with durable materials like architectural shingles or standing seam metal.
Which Roof Style Is Best for Your Home?
| Factor | Flat Roof | Pitched Roof |
| Water Drainage | Fair | Excellent |
| Installation Cost | Lower | Slightly higher |
| Maintenance Needs | Higher | Lower |
| Lifespan | 15–25 years | 25–50+ years |
| Curb Appeal | Modern only | Broad appeal |
| Best For | Modern homes, garages, ADUs | Most single-family homes |
Edmonds Roofing Experts You Can Trust
At Blue and Blue Roofing, we help homeowners make smart roofing choices based on local conditions, architectural goals, and long-term value. Whether you’re exploring a flat roof for a modern build or replacing an aging pitched roof with high-performance materials, we’ll help you weigh the pros and cons and get the job done right. Contact Blue and Blue Roofing today – your trusted local roofing experts.
