How Roofing Warranties Work (And What's Typical in Washington State)

The Three Types of Roofing Warranties

Not all roofing warranties cover the same things. In fact, most new roofs include three different types of protection.

1. Manufacturer's Material Warranty

This warranty comes directly from the shingle manufacturer and covers defects in the roofing materials themselves.

If shingles fail because they were improperly manufactured—not because of weather or installation—the manufacturer may replace the defective materials. Depending on the product, these warranties commonly range from 25 years to 50 years, with many premium products offering limited lifetime coverage.

However, it's important to understand what this warranty does not cover.

Manufacturer warranties generally exclude:

• Improper installation
• Storm or wind damage
• Falling trees
• Poor attic ventilation
• Neglected maintenance
• Alterations made after installation

Many homeowners are surprised to learn that a "50-year shingle" doesn't necessarily mean every roofing problem is covered for 50 years. The warranty primarily protects against manufacturing defects—not every cause of roof failure.

2. Workmanship Warranty

This is the warranty your Bellingham residential roofing contractor provides.

Instead of covering the shingles, it covers the quality of the installation.

Since the majority of roof leaks originate from installation details—such as flashing, valleys, roof penetrations, or improperly placed fasteners—the workmanship warranty is often the protection homeowners rely on most.

Across Washington, workmanship warranties vary considerably.

Typical contractor warranties include:

• 1–2 years from many roofing companies
• 5 years from contractors focused on premium installations
• Up to 10 years from contractors who stand behind their craftsmanship

At Axiom Roofing, we proudly provide a 10-year workmanship warranty on our residential roofing new construction and residential roofing reroofing projects because we believe quality installation should be backed by long-term confidence.

3. Enhanced System Warranties

Many manufacturers also offer upgraded warranties when an entire roofing system is installed—not just shingles.

These enhanced warranties often require:

• Complete roofing systems from one manufacturer
• Certified roofing contractors
• Proper ventilation
• Approved underlayments, starter shingles, ridge caps, and accessories
• Registration after installation

Depending on the manufacturer, enhanced warranties may include both materials and labor for qualifying defects, making them some of the strongest protections available.

What's Typical in Washington State?

Because Western Washington experiences months of rain each year, roofing systems work harder than they do in many other parts of the country.

Moisture management becomes just as important as the shingles themselves.

Experienced residential roofing companies in Washington like Axiom Roofing place significant emphasis on:

• Proper attic ventilation
• High-quality underlayments
• Ice and water protection in vulnerable areas
• Precision flashing installation
• Proper fastening techniques

These aren't simply best practices—they often determine whether manufacturer warranties remain valid.

If installation doesn't meet manufacturer specifications, warranty claims may be denied. That's why choosing an experienced residential roofing contractor matters just as much as choosing premium shingles.

What Can Void a Roofing Warranty?

Many warranty issues have nothing to do with defective shingles.

Common reasons warranties become limited or void include:

• Improper installation
• Poor roof ventilation
• Pressure washing shingles
• Installing satellite dishes or solar equipment incorrectly
• Unauthorized roof repairs
• Failure to address damage promptly
• Using incompatible roofing materials during repairs

This is another reason it's wise to work with the same trusted roofing contractor for inspections and future roofing work whenever possible.

Why Installation Quality Matters

A warranty is only as valuable as the installation behind it.

Even premium roofing materials can fail prematurely if shingles are improperly fastened or flashing is incorrectly installed.

At Axiom Roofing, every roof is installed with craftsmanship that reflects more than two decades of experience.

Unlike many contractors who rely solely on pneumatic nail guns for speed, we handnail every shingle.

Hand nailing shingles allows each fastener to be carefully placed at the correct depth and location, reducing the chances of overdriven nails, underdriven nails, or improper placement that can affect long-term performance. It's a slower process, but one that reflects our commitment to building roofs designed to last.

For homeowners making a significant investment, this attention to detail provides confidence that the roof has been installed exactly as intended.

Questions Every Homeowner Should Ask

Before hiring a residential roofing company, ask these questions:

• What manufacturer warranty comes with the shingles?
• How long is your workmanship warranty?
• Is labor included if a warranty claim is approved?
• Is the warranty transferable if I sell my home?
• What maintenance is required to keep my warranty valid?
• Will you register any enhanced manufacturer warranty on my behalf?

A reputable contractor should be happy to explain every detail before work begins.

Protecting Your Investment for Decades

A new roof is one of the largest investments you'll make in your home. While premium materials are important, the true value comes from combining those materials with skilled installation and a warranty that provides lasting protection.

At Axiom Roofing, we've spent more than 20 years helping homeowners throughout Whatcom, Skagit, and Island Counties protect their homes with exceptional craftsmanship. Whether we're completing residential roofing new construction or residential roofing reroofing, every project is built with premium materials, meticulous attention to detail, and our signature hand nailing technique. Contact us to learn more!