ROOFING GUIDE · ILLINOIS & NEVADA
GAF shingles for your home
Understand the difference between Timberline HDZ, UHDZ, and AS II before comparing proposals.
Same-Day Estimate(no appointment required)↗Choose the line. Understand the difference.
A thicker-looking architectural shingle and a polymer-modified shingle answer different questions. Timberline AS II uses SBS-modified asphalt. HDZ and UHDZ are separate comparisons in appearance and system specifications.
| Product family | What changes | What to discuss |
|---|---|---|
| Timberline HDZ | Architectural shingles with the LayerLock system. | Compare colors and the full accessory package. |
| Timberline UHDZ | A more dimensional Timberline appearance. | Decide whether added visual depth matters to you. |
| Timberline AS II | SBS-modified asphalt and Class 4 impact classification. | Compare material flexibility and product availability. |
| Designer and specialty options | Other GAF styles and regional offerings. | Match the exact current product to your reference look. |
This is a product-family guide, not a local inventory list. Colors, regional lines, and availability can change. Your written proposal identifies the exact materials.
What this means for a Nevada home.
For a Summerlin or Centennial Hills project, we review your existing roof, the look of the surrounding exterior, HOA requirements, and access around the home. A cool-color option is worth comparing by its actual published rating; the color name alone is not enough.
A Mt. Charleston roof needs a separate conversation about the site, snow, fire classification, and water protection. We don’t copy a valley specification onto a mountain home.
The care stays part of the plan.
Whichever shingle you choose, we help coordinate the decisions, document the installation, and plan cleanup. Your estimate explains the deck work, protective layers, flashings, ventilation, and finishing details.
Explore our Winterization Package, actual installation record, and Nail-Free Guarantee.
A few questions, answered.
Can I choose a brand before getting an estimate?
Yes. Tell us the brand or product you like, or send a reference photo. We’ll confirm suitability and availability and help you compare alternatives.
Does an impact rating mean the roof is hail-proof?
No. An impact classification describes performance in a particular test. It is not a guarantee against hail damage, and product warranties have their own terms.
Why does the installation scope matter when I compare quotes?
Deck repairs, underlayment, flashings, ventilation, access, disposal, and cleanup all affect the project. We explain those details alongside the chosen shingle so you can compare complete proposals.
Product & planning references
GAF shingle comparison ↗Timberline AS II ↗Manufacturer and planning information reviewed September 2026. We confirm the current product, color, assembly, and warranty for your project.