Roof replacement · September 29, 2026

Metal roof or asphalt shingles? What Inland Northwest homeowners should compare

There is no single roofing material that is right for every home. The better choice depends on the roof design, the condition of the existing deck, the installation details, the look you want, and the amount you plan to invest.

Homeowners from Moscow and Pullman to Spokane and Coeur d’Alene often ask whether they should replace an aging roof with asphalt shingles or metal. Start by comparing complete written scopes, not just the surface material. Underlayment, flashing, roof edges, penetrations, ventilation, and deck condition all affect the finished roofing system.

Asphalt shingles: familiar appearance and a lower initial investment

Asphalt shingles are available in many colors and profiles and work well with a wide range of residential roof shapes. They are often the more budget-friendly option at the time of replacement. A complete shingle scope should explain the tear-off, deck inspection, underlayment, leak-barrier locations, starter, field shingles, ridge material, flashing, ventilation, and cleanup.

Do not compare shingle estimates by brand name alone. Ask whether both proposals include the same removal, flashing, ventilation, and concealed-damage terms. The Asphalt Roofing Manufacturers Association describes shingles as one part of a broader roof system that also includes underlayment, ice-and-water protection, starter, hip and ridge products, and balanced ventilation.

Metal roofing: compare the panel system and every transition

“Metal roof” can describe more than one type of system. Exposed-fastener panels and concealed-fastener standing-seam panels are assembled differently and should not be treated as interchangeable estimates. Ask which system is proposed, the metal thickness, panel profile, finish or color, fastener type, and how the installer will handle ridges, eaves, rakes, valleys, wall intersections, transitions, and pipe penetrations.

Metal can be a strong option for homeowners who prefer its appearance and are comfortable with a higher initial investment. The estimate should still be specific. Panel layout, trim, closures, sealants, fasteners, and penetrations need to be planned as one system rather than added as afterthoughts.

The existing roof may affect the decision

The roof’s pitch, number of planes, valleys, dormers, chimneys, skylights, and wall connections can change the labor and detail work required for either material. Tear-off can also reveal soft, rotten, or delaminated decking that cannot be fully evaluated from the ground. A good proposal explains how concealed deck repairs will be documented, approved, and priced if they are needed.

Think about maintenance and future service

Every roof needs periodic observation, especially around flashing, sealants, penetrations, and areas where debris or snow can collect. With an exposed-fastener metal system, ask how fasteners and sealing details should be checked over time. With shingles, ask what visible changes should prompt a closer inspection. Keep the final contract, material information, warranty documents, and completion photos together for future reference.

Questions to ask before choosing

• Is the estimate for a complete tear-off or an overlay?
• Which roofing system, profile, and material thickness are included?
• How are valleys, walls, chimneys, vents, and pipe penetrations handled?
• What underlayment and leak-barrier locations are included?
• How will ventilation be evaluated?
• How are concealed deck repairs approved and priced?
• What maintenance does this specific system require?
• What workmanship and manufacturer coverage will be provided in writing?

The best next step is a roof-specific comparison. Iron Cross Builders works with homeowners on roof replacement in Moscow, roofing in Pullman, and residential projects throughout our Idaho and Washington service area. Learn more about our residential roof-replacement process and what the written scope should cover.

Written by the Iron Cross Builders team · Residential roofing in Idaho and Washington