Cedar Shake vs Asphalt Shingles — Which Roof Lasts Longer?

Quick Verdict — Asphalt for Budget, Cedar for Character Homes

The cedar shake vs asphalt shingles debate comes up constantly among homeowners renovating older properties, and I’ll give you the short answer right now: for most houses, asphalt wins on cost and convenience. Full stop. But if you own a Craftsman bungalow, a Tudor revival, or any home built before 1960 that still has its original bones, cedar shake isn’t just a material choice — it’s a preservation decision, and the math changes considerably.

I spent about four months researching this before re-roofing a 1924 Craftsman in the Pacific Northwest. Talked to three roofing contractors, two insurance agents, and a historic preservation consultant. What I found was that nearly every contractor pushed whatever they happened to install most often. The asphalt guys thought cedar was a liability nightmare. The cedar specialists acted like asphalt was something you’d put on a strip mall. Neither camp gave me a straight comparison. So here’s the one I wish I’d had.

Cedar shake costs two to three times more upfront than asphalt shingles. Maintenance adds to that gap over time. But on certain homes — character homes, historic properties, high-end custom builds — cedar delivers an aesthetic that no asphalt product genuinely replicates, and it holds resale value in neighborhoods where buyers expect it. On a new subdivision colonial or a 1990s ranch, nobody’s going to pay a premium for cedar. On a registered heritage property, some buyers will walk away without it.

That’s the real framework. Everything else is details.

Lifespan Comparison — The Real Numbers

Cedar shake, properly installed and maintained, lasts 30 to 50 years. Asphalt shingles range from 15 to 30 years depending on grade. Those ranges are wide, and the spread matters more than the midpoints.

Cedar Shake Lifespan

Thirty years is the floor for cedar, assuming you’re in a climate that’s reasonably kind to wood — somewhere with dry summers and cold winters where the shake can dry out between wet seasons. Fifty years is achievable in those same climates with active maintenance. I’ve personally seen cedar roofs on heritage homes in Alberta and Montana that were pushing 45 years and still had another decade left. The wood was silver-grey and tight. No curling, minimal cracking.

In humid coastal climates — think Vancouver, Seattle, coastal Maine — cedar underperforms significantly. Sustained moisture breeds moss and mold. Without treatment every three to five years, a cedar roof in a wet climate can start showing serious degradation by year 20. That’s the tradeoff nobody at the cedar showroom mentions.

Asphalt Shingles — 3-Tab vs Architectural

Not all asphalt shingles are the same product. This is where I made my first mistake — I initially got quotes for 3-tab shingles because they’re cheaper, not realizing how dramatically different the lifespan is.

3-tab asphalt shingles are rated for 20 to 25 years. In reality, in harsh climates with ice, heavy UV, or strong winds, you’re looking at 15 to 18 years before they start lifting and cracking. Architectural shingles (also called dimensional or laminate shingles) are a fundamentally thicker product — typically two layers bonded together — and they carry 30-year warranties from manufacturers like GAF Timberline HDZ or CertainTeed Landmark Pro. Some premium architectural lines (GAF Camelot II, IKO Dynasty) carry 50-year limited warranties, though the fine print on those is worth reading carefully.

Surprised by the warranty on that Timberline HDZ, honestly. It changed my thinking about asphalt as a “cheap” option.

• 3-tab asphalt — 15 to 25 years, minimal wind resistance, flat profile
• Architectural asphalt — 25 to 35 years real-world lifespan, rated to 110–130 mph winds depending on product
• Premium architectural asphalt — 35 to 50 years, Class 4 impact resistance available (IR-rated), thicker profile
• Cedar shake — 30 to 50 years with maintenance, climate-dependent

Head-to-head, a premium architectural asphalt shingle in a moderate climate can genuinely match cedar shake on lifespan. The gap narrows to aesthetics, maintenance tolerance, and upfront budget.

Cost Per Square — Installed

A “square” in roofing covers 100 square feet of roof surface. That’s the standard unit. Everything gets priced per square.

Asphalt Shingles — Installed Cost

Expect to pay $250 to $500 per square installed for asphalt shingles, depending on region, roof complexity, and shingle grade. A basic 3-tab job on a simple gable roof in the Midwest might come in around $260 to $280 per square. Architectural shingles on a moderately complex hip roof in a higher cost-of-living market run $380 to $480 per square installed. Premium products like the GAF Camelot II push toward $500 to $550 per square installed.

For a 2,000 square foot home with roughly 22 to 25 squares of roof surface, that’s a total installed cost of roughly $5,500 to $12,000 for asphalt. Wide range, I know — but it’s an accurate one.

Cedar Shake — Installed Cost

Cedar shake runs $600 to $900 per square installed. On the same 22 to 25 square roof, you’re looking at $13,200 to $22,500 installed. Western red cedar from BC suppliers tends to come in at the lower end of that range. Hand-split and resawn shakes — the premium grade with a rougher, more rustic face — push toward $850 to $950 per square installed.

That’s roughly double to triple the cost of mid-grade asphalt. On a tight budget, that difference is not abstract — it’s a home renovation that doesn’t get done, a kitchen that doesn’t get updated, or a significant chunk of an emergency fund.

Lifetime Cost Comparison

This is where the calculation gets genuinely interesting. Probably should have opened with this section, honestly, because it reframes the whole conversation.

Over a 50-year period, an asphalt roof likely gets replaced at least once — twice if you went 3-tab. Call it two full replacements at $9,000 each, plus minor repairs of $300 to $500 every five years or so. Rough lifetime cost over 50 years: $20,000 to $25,000.

Cedar shake installed once, maintained every three to five years (more on that below), repaired as needed: $18,000 to $22,500 upfront, plus $2,000 to $4,000 in maintenance over the same 50-year span. Total: $20,000 to $27,000.

They’re closer than people think. The difference is cash flow — cedar demands more money now, asphalt spreads the cost into the future.

Maintenance Requirements — Where Cedar Gets Expensive

This section is where cedar shake loses most of the homeowners who start out enthusiastic about it. The maintenance requirements are real, consistent, and non-optional if you want to hit that 40- to 50-year lifespan.

Cedar Shake Maintenance Schedule

Every three to five years, cedar shake needs to be cleaned and treated. Cleaning typically involves a low-pressure wash with a biocide solution to kill moss, algae, and mold spores, followed by a wood preservative or penetrating oil treatment. Penofin Red Label Cedar Treatment is one commonly used product. Olympic Maximum Stain Sealer works on cedar as well. A professional application on a standard two-story home runs $800 to $1,500 depending on roof size and accessibility.

Skip one treatment cycle and you’ll probably be fine. Skip two or three and you’ll find cracked, cupped shakes, blackened wood, and early failure starting in the lowest courses and north-facing slopes first.

Humbled by exactly this situation on a rental property I inherited, I ended up replacing a full north slope at year 22 — an entirely preventable $4,800 repair that better maintenance scheduling would have avoided. That was the lesson that stuck with me most going into my own reroofing project.

Moss and Mold in Humid Climates

Pacific Northwest homeowners face a specific challenge. The mild, wet winters create near-perfect moss growing conditions. Zinc or copper strips installed at the ridge line help — rainwater picks up trace metals and runs down the slope, inhibiting moss growth. A 20-inch copper strip along the ridge is a low-cost addition during installation, roughly $150 to $300, and it meaningfully extends treatment intervals.

Without it, moss can establish itself in 18 to 24 months on an untreated cedar roof in coastal climates. The roots are what damage the wood — they penetrate the grain and accelerate moisture retention.

Asphalt Maintenance Reality

Asphalt shingles are about as close to maintenance-free as roofing gets. Clear debris from valleys and gutters each fall. Check flashing around chimneys and skylights every few years. Replace individual blown-off shingles after major wind events. That’s largely it. No treatments, no biocides, no specialized contractors.

For homeowners who don’t want to think about their roof — which is most people — asphalt is genuinely the right answer.

Insurance and Fire Considerations

This is the part of the cedar shake conversation that brokers tend to bury in fine print, and it deserves direct attention.

Fire Rating — Untreated Cedar

Untreated cedar shake carries a Class C fire rating. Class A is the highest resistance (concrete tile, metal, most asphalt shingles). Class C is the lowest accepted rating in most jurisdictions. In wildfire-prone areas — California, Colorado, parts of Oregon and Washington — Class C roofing materials are prohibited outright by local code. Check your municipality before specifying cedar shake in any area with significant wildfire risk.

Class A pressure-impregnated cedar shake is available. Products treated with fire retardants, like those meeting the CERTI-GUARD or Fire Guard standards from the Cedar Bureau, achieve Class A ratings. The treatment adds roughly $80 to $120 per square to material costs and must be reapplied as part of maintenance cycles because the retardant concentration diminishes over time.

Insurance Premium Impact

Several major insurers — State Farm, Allstate, and others — charge higher premiums for homes with Class C roofing. Some have moved to outright refusing new policies on Class C roofs in high-risk zones. Two insurance agents I spoke with during my research both confirmed that cedar shake triggers an underwriting review in their companies that standard asphalt does not.

Get an insurance quote before you commit to cedar. Specifically ask your broker how the roof material affects your annual premium and whether your carrier will insure Class C cedar shake at standard rates. For treated Class A cedar, most carriers treat it comparably to asphalt.

• Untreated cedar shake — Class C fire rating, potential premium surcharge, restricted in high-risk zones
• Treated cedar shake (CERTI-GUARD) — Class A fire rating, standard insurance treatment in most markets
• Architectural asphalt shingles — Class A fire rating standard, no premium surcharge
• 3-tab asphalt — Class A fire rating, lower wind resistance classification

The treated cedar option threads the needle reasonably well — you keep the aesthetic, you get the fire rating, you avoid the insurance problem. You just pay for it in material costs and ongoing maintenance of the treatment itself.

At the end of the research process, I went with architectural asphalt — CertainTeed Landmark Pro in Heather Blend, which has a dimensional texture that photographs well and reads as more traditional than a flat 3-tab on a Craftsman profile. Not cedar. But the right call for my timeline, my budget, and my climate. On a drier climate with a more modest maintenance schedule ahead of me, I might have gone cedar. The honest answer is that both materials can be the right answer — the question is which variables matter most on your specific project.