IKO vs GAF: compare the exact shingle, system and warranty—not two logos.
Neither brand wins every roof. The useful comparison is product to product: what is available, which classifications and accessory requirements apply, what the current Canadian terms say, what Roofprint is authorized to offer, and what the installed difference is on your property.
IKO Dynasty vs GAF Timberline HDZ.
Product position
IKO Dynasty: laminated performance shingle. GAF Timberline HDZ: Timberline laminated architectural shingle.
Impact classification
Both manufacturers publish Class 3 classifications under stated test and qualifying-package conditions. This is not a hail guarantee.
Fire classification
Both publish Class A under the stated standards and installation conditions. Confirm the current Canada-applicable product document.
Wind language
IKO publishes product-specific limited wind terms. GAF describes WindProven as a separate limited-warranty path requiring qualifying products and accessories. Read the current Canadian terms.
Material and enhanced coverage
The current Canadian limited-warranty document controls. Enhanced coverage depends on the exact product, accessory package, contractor status, installation and any required registration.
- Roofprint offer status not published
Installed price and Roofprint status
There is no universal percentage. Supplier-backed property pricing and Roofprint’s exact offered-product and credential status remain evidence-required.
Choose only after the product, system and status are clear.
Choose IKO Dynasty when…
The exact product and colour are available; its published classifications and accessory requirements match the roof goal; the current installed scope is the stronger value; and Roofprint can document the applicable product and warranty path. Do not reduce this to “choose IKO because it is local” unless the selected bundles’ origin is verified.
Choose GAF Timberline HDZ when…
The exact product and colour are available; its product or system features are the better fit; the required qualifying accessories are included; and any warranty language shown is available through Roofprint’s verified current contractor status. Do not advertise WindProven or an enhanced warranty from the product logo alone.
Choose neither yet when…
The roof basis is still preliminary, the products are not supplier-confirmed, the proposal does not identify the accessory system, or the warranty path depends on a credential Roofprint cannot prove. Resolve those facts before turning the brand choice into a recommendation.
What usually matters more than the logo.
Scope
The deck rule, membranes, flashing, ventilation and exact accessories.
Execution
Installation to the selected product and system instructions.
Evidence
Product data, source dates, reviewer and written proposal.
Price
The current installed property-specific difference, not an internet percentage.
Accountability
A verified contractor and service path that match the documents.
What homeowners ask about this.
Which is better, IKO or GAF?
Neither brand is universally better. Compare the exact products, available colours, complete accessory system, installation requirements, limited-warranty path, Roofprint’s credential status and the current installed price on your roof.
Is IKO always cheaper in the GTA?
Do not assume a universal percentage. Product line, colour, distributor inventory, accessories and timing affect installed price. Roofprint should show the live supplier-backed difference for the same property and scope.
Which product is more impact resistant?
For this comparison, both manufacturers publish Class 3 classifications under stated conditions. Other lines may carry different classifications—for example, IKO Nordic is published as Class 4—but Roofprint should compare them only if they are currently offered. No impact class makes a roof hail-proof.
Does WindProven automatically come with Timberline HDZ?
No. GAF describes a separate limited-warranty path with qualifying Timberline products and required GAF accessory categories. Eligibility also depends on the current terms and installation. Roofprint must not present it as included unless the selected system qualifies.
Does Roofprint install both brands?
Answer from the live product catalogue only. Until both products are owner- and supplier-confirmed, Roofprint does not publish a choice or imply that either line is currently offered.
Compare both on the same roof and the same date.
Start with your property. Roofprint should keep the roof basis constant, use current product sources and show the real installed difference without a universal winner.