The Short Answer
If you plan to stay in your home for the long haul, a metal roof usually wins the 30-year math in the Inland Northwest. Asphalt shingles cost far less to install, but they wear out faster here, especially under repeated freeze-thaw cycles, ice dams, and heavy snow loads. Metal costs two to three times more up front, yet it often outlasts two full asphalt roofs.
The catch is your timeline. If you might sell in five to ten years, the premium for metal may not pay back before you move, though it can still help your listing stand out. Below we walk through realistic numbers, the local factors that change the equation, and how to decide which makes sense for your home.
Up-Front Cost: What Each Roof Runs Around Here
Pricing swings with roof size, pitch, complexity, tear-off, and material grade, so treat these as ballpark ranges rather than quotes. For a typical Spokane-area home, installed costs in 2026 generally land in these bands:
- Architectural asphalt shingles: roughly $5 to $9 per square foot installed. A 2,000 sq ft roof often falls in the $11,000 to $20,000 range.
- Standing-seam metal: roughly $11 to $18 per square foot installed. The same roof commonly runs $24,000 to $40,000 or more.
- Metal shingles or stamped panels: usually between the two, around $9 to $14 per square foot.
So metal typically costs about two to three times asphalt at the outset. That gap is the single biggest reason homeowners hesitate, and it is a fair concern. The question is what happens over the decades that follow.
Lifespan: Where Metal Pulls Ahead
Lifespan is where the 30-year story turns. In our climate, a quality architectural asphalt roof commonly lasts about 20 to 30 years, though harsh sun exposure, ice damming, and wind can shorten that. Premium designer shingles with a strong warranty can stretch further when installed correctly.
Metal is a different animal. Standing-seam metal roofs routinely last 40 to 70 years, and many manufacturers back the coating for decades. Over a 30-year horizon, an asphalt roof often needs replacing once near the end of that window, while a metal roof is usually still middle-aged.
That single avoided replacement, plus reduced repair calls along the way, is what closes much of the up-front gap. You are essentially paying once for metal instead of one-and-a-fraction times for asphalt.
Running the 30-Year Math
Here is a simplified illustration using midpoints from the ranges above, for a 2,000 sq ft roof. Your actual numbers will differ, but the shape of the comparison holds.
- Asphalt path: about $15,000 today, plus a likely second roof around year 25 to 28. Even ignoring inflation, that is roughly $28,000 to $32,000 over 30 years, before counting interim repairs.
- Metal path: about $32,000 today, with no replacement expected within 30 years and minimal repair spending.
On those midpoints the two paths land surprisingly close over three decades, and metal pulls clearly ahead in years 25 to 50 when the asphalt home is buying its third roof and the metal home has spent nothing more. If your asphalt roof lasts the full 30 years and you sell at that point, asphalt can come out cheaper on paper. The longer you stay, the more metal wins.
Local Factors That Tip the Scale
National cost comparisons miss what actually drives roof life in Spokane, Spokane Valley, and North Idaho. A few things matter more here than almost anywhere:
- Snow and ice: Metal sheds snow readily and resists ice dams better than asphalt, which can reduce gutter damage and interior leaks. Snow guards are usually added so sliding snow does not endanger walkways or landscaping.
- Freeze-thaw cycling: Repeated freezing and thawing is hard on asphalt granules and seals. Metal panels are unaffected by this stress.
- Wind and hail: Both roofs can be rated for high wind. Heavy hail can dent some metals cosmetically, while it can crack or strip asphalt; impact-rated products exist for both.
- Wildfire smoke and embers: Metal is non-combustible, a real consideration for homes near the wildland edge in North Idaho.
These factors generally favor metal in our region, but installation quality matters far more than the brochure. A poorly flashed metal roof leaks just like a poorly installed asphalt one.
Energy, Resale, and Other Quiet Savings
Beyond replacement cycles, a few softer numbers nudge the comparison toward metal. Reflective metal coatings can trim summer cooling loads, and the difference is modest but real during our hot, smoky Augusts. Some homeowners also see insurance considerations improve thanks to metal's fire and impact resistance, though this varies by carrier, so confirm with your own agent.
On resale, a newer roof of any type helps a listing, but a transferable long-term warranty and a roof a buyer will never have to replace can be a genuine selling point. Asphalt's advantage is curb appeal familiarity and lower up-front cost, which matters in price-sensitive segments. Neither choice is wrong; they simply optimize for different goals.
Which Should You Choose?
Lean toward metal roofing if you plan to stay 15 years or more, you want the lowest lifetime cost and least hassle, your home faces tough snow or fire exposure, or you simply want a roof you will likely never replace.
Lean toward asphalt if up-front budget is the deciding constraint, you may sell within several years, or you want a specific traditional look at a lower entry price. A premium architectural shingle with a strong warranty is a smart, durable choice that serves most homes well.
Either way, the install crew decides whether you get the lifespan you paid for. As a GAF Master Elite contractor, an honor held by a small share of roofers nationwide, DG Contracting backs work with a 15-25 year workmanship warranty alongside GAF's long-term coverage. Compare both options on your own roof with a no-pressure free estimate, and we will give you real numbers for your home rather than national averages.