CertainTeed Landmark vs GAF Timberline — Head to Head
These are the two most popular architectural shingles in North America, and they get compared constantly. Both are excellent. The differences come down to the look, the nailing technology, and which install network you trust. Here is the honest head to head from a certified CertainTeed Master Roofer. From Paragon Roofing BC, family owned since 2010.
CertainTeed Landmark and GAF Timberline HDZ are the two shingles homeowners most often ask us to compare. They sit at the same point in the market, both are dimensional architectural shingles with strong warranties and broad availability, and both make a roof we are glad to stand behind. The real differences are subtle: the look and colour range, the nailing technology, and the certified install network behind each. As a CertainTeed Master Roofer we install a great deal of Landmark, but we will give you the straight comparison.
CertainTeed Landmark: refined look, deep colour
Landmark is known for a refined, dimensional appearance and one of the deepest colour ranges in the category, which is why designers and homeowners chasing a specific look gravitate to it. The Landmark Pro tier steps up the weight and the warranty for homeowners who want more shingle. CertainTeed has a long reputation for colour consistency and curb appeal, and the Master Roofer certification network behind it means qualified installation and access to enhanced warranty coverage.
GAF Timberline HDZ: easy install, proven everywhere
Timberline HDZ is the most widely specified shingle on the continent. Its headline feature is the LayerLock technology and a wide nailing zone that makes correct fastener placement easier and improves wind performance, which is a genuine benefit for consistent installs. It is a dependable, good looking shingle with the broadest availability you will find. For homeowners who want the safe, proven standard that any roofer can source and install, Timberline is exactly that.
Side by side comparison
| Factor | CertainTeed Landmark | GAF Timberline HDZ |
|---|---|---|
| Look | Refined, deep colour range | Clean, dimensional, broad range |
| Signature tech | Dimensional build, Landmark Pro upgrade | LayerLock, wide nailing zone |
| Wind | High when installed correctly | High, wide nail zone aids consistency |
| Fire | Class A | Class A |
| Availability | Strong | Broadest in the market |
| Certified network | CertainTeed Master Roofer (we hold this) | GAF network |
| Best for | Curb appeal and colour choice | Proven, widely sourced standard |
Which one for your home
In truth you cannot go wrong with either, and the install is what matters most. Because we are CertainTeed Master Roofer certified we install a lot of Landmark and can offer the certified install path, but we are happy to install Timberline where a homeowner prefers it. We use a four nail pattern as standard on either. See our CertainTeed products and asphalt shingle pages for more.
Frequently Asked Questions
Both are excellent and sit at the same point in the market. Landmark tends to win on refined looks and colour depth, while Timberline HDZ wins on availability and its wide, install friendly nailing zone. The honest deciding factor for most homeowners is the look they prefer and the installer they trust, since the install matters more than the small differences between two quality shingles.
LayerLock is GAF's technology that pairs with a wide nailing zone on the Timberline HDZ, making it easier for installers to place fasteners correctly and improving wind performance. The practical benefit is more consistent, reliable installs, which matters because most shingle failures trace back to nailing and installation rather than the shingle.
Landmark Pro steps up the shingle weight and warranty over the base Landmark, which can be worth it on a home you plan to keep long term or in a more exposed location. We can price both so you can see the cost difference for your roof and decide whether the upgrade makes sense for your situation.
We are a certified CertainTeed Master Roofer, so we install a great deal of Landmark and can offer the certified install path. We also install GAF Timberline where a homeowner prefers it. Either way, the installation is done by our own in house crew using a four nail pattern as standard.
Both can deliver long service lives in our climate when installed correctly with good flashing and ventilation. Real world longevity depends far more on install quality, slope, and maintenance than on the difference between these two quality brands. A well installed roof of either will outlast a poorly installed roof of the supposedly better shingle.
Yes, both manufacturers offer strong product warranties on these architectural lines, with enhanced coverage available through their certified installer networks. Separately, we back every installation with our own 20 year workmanship warranty, which is the coverage that protects you against the installation issues that cause most real world problems.
Landmark or Timberline? We Install Both, Honestly.
As a certified CertainTeed Master Roofer we can offer the certified Landmark path, and we install Timberline too. We match the shingle to your home and install it with our own crew. 20 year workmanship warranty.
Book Free Estimate CertainTeed Products Call us any time: 604‑358‑343615+ years of Lower Mainland roofing experience. Harman leads project teams across Metro Vancouver and the Fraser Valley with a focus on institutional quality work for residential, strata, and commercial properties. Direct line: 604‑358‑3436.
Paragon Roofing BC
— Trusted Lower Mainland roofing contractor
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