Is GAF or CertainTeed better?

Neither, honestly. Both are top-tier manufacturers whose architectural shingles perform well when installed to spec. The meaningful comparison is between the two contractors quoting them: certifications, scope detail, references, and workmanship warranty.

Can you install a brand you're not certified in?

Mechanically, any competent roofer can install any major shingle. What's lost without certification is the enhanced warranty tier, which is a real part of what you're paying for. It's why we quote the system we're certified in and say so plainly.

Do system warranties really require every matched component?

The enhanced tiers generally do require the manufacturer's components in the critical layers and a certified installer, with registration after the job. It's the fine print that turns 'lifetime shingles' into actual coverage, and reading it before the install is the whole game.

What about metal, tile, or other non-asphalt systems?

Different materials, different roundup. Asphalt systems dominate homes in our area on cost and practicality, but metal in particular has a real following in the Northwest. If your project leans that way, we're happy to talk through it at an assessment.

Roof System Roundup: CertainTeed, GAF, Owens Corning & Malarkey

First, what is a roof system?

A roof system is a manufacturer's full stack of matched components: shingles, underlayment, ice and water membrane, starter strips, ridge caps, and ventilation parts engineered to work together. Every major brand sells one, and every major brand attaches a carrot to it: install the complete system, through a contractor they've certified, and your warranty steps up to enhanced coverage that the shingles alone never get.

That's the key mental model for this whole roundup. The brands compete on shingle technology, but they really compete on systems and certifications, because installation is what decides whether any shingle reaches its rated life.

CertainTeed: what we install

CertainTeed has been making roofing for over a century, and their architectural lineup runs from the Landmark series, one of the most widely installed architectural shingles in the country, up through luxury lines like Presidential Shake and Grand Manor. Their Integrity Roof System is the matched-component stack, and their certification ladder for contractors unlocks progressively stronger warranty tiers.

Why we standardized on them: their architectural lines have held up on our roofs through enough Oregon winters to earn our trust, the warranty program behind a certified install is strong, and our certification means the enhanced coverage tiers are on the table for every roof we build. We decoded their product tiers here, and the warranty layers here.

CertainTeed architectural shingles being installed by a certified crew

GAF: the biggest name in the game

GAF is North America's largest roofing manufacturer, and their Timberline series is probably the best-known architectural shingle in the country. Their system story matches the pattern: matched components, a certification ladder for contractors (topping out at Master Elite), and enhanced warranty tiers like Golden Pledge that only certified installers can offer.

Honest take: GAF makes a good shingle, full stop. If a reputable, properly certified GAF contractor quotes your roof, the brand is not a reason to worry. As always, the questions that matter are about the installer, not the wrapper.

Owens Corning: the pink panther's roofing arm

Owens Corning's Duration series is their architectural flagship, and its signature feature is the SureNail strip: a reinforced fabric band in the nailing zone that strengthens the shingle's grip on the fasteners. Their Total Protection Roofing System and Platinum Preferred contractor program complete the familiar pattern of matched components and certification-gated warranties.

Honest take: another quality manufacturer with a real engineering point of pride. Same rule applies: the certification and the crew matter more than the logo on the bundle.

Malarkey: the hometown option

Malarkey Roofing Products is headquartered right in Portland, which makes them the local kid in this roundup. They're known for polymer-modified asphalt shingles: rubberized formulas designed for better cold-weather flexibility and impact resistance, plus smog-reducing granules that they pioneered. Lines like Vista, Highlander, and Legacy cover the architectural range.

Honest take: Malarkey makes genuinely interesting shingles, engineered by people who understand Pacific Northwest weather firsthand, and plenty of good local roofers install them happily. We're glad they exist; a homeowner choosing a certified Malarkey installer is making a sound choice.

The rest of the field

IKO, Atlas, TAMKO, and others round out the market, each with their own architectural lines and system programs. You'll meet them most often on quotes where price is the headline. They make functional products; just apply extra attention to the scope details and the warranty terms, since the budget end of any market is where corners get quietly cut, usually in the layers you can't see.

So how do you actually choose?

Flip the order most people use. Instead of picking a brand and finding an installer, find the right installer and let their certification guide the brand. A certified contractor installing the system they know cold, to the spec they're audited on, with the enhanced warranty their certification unlocks, beats any brand-first decision.

That's the honest reason we lead with CertainTeed: it's the system we're certified in, trained on, and accountable to. If you bring us a quote for another major brand, we'll give you a straight comparison, and the 10 contractor questions work on every company in this roundup, including us.