Dennis K.’s roofing project in Royal Oak, MI, involved a complete roof replacement using a full GAF roofing system designed to improve long-term durability, weather protection, and attic ventilation. With multiple valleys, two chimneys, and several roof transitions, the project focused on replacing aging roofing materials while upgrading components that help prevent future leaks.
Roofing System Installed
The new roof features GAF Timberline® HDZ™ Lifetime Architectural Shingles, installed as part of a complete GAF roofing system backed by the GAF System Plus Warranty.
The roofing system also included:
- GAF FeltBuster® synthetic underlayment
- Pro-Start® starter shingles along all eaves and rakes
- Ice and water leak barrier at eaves, valleys, sidewalls, and roof penetrations
- Cobra® SnowCountry® Advanced Ridge Vent
- Seal-A-Ridge® ridge cap shingles
- Seal-A-Ridge® hip shingles
- Advantage SafeLock ring-shank fastening system
- New aluminum drip edge around the roof perimeter
- Three new plumbing boots
- New range vent
- Two replacement bathroom vents
- New wall flashing
- New step flashing
- Two complete chimney flashing replacements
- An aluminum transition panel was installed where multiple valleys converge
Improving Ventilation and Roof Performance
One of the major upgrades included installing a continuous Cobra SnowCountry ridge ventilation system to improve attic airflow.
Proper attic ventilation helps:
- Reduce excessive attic heat
- Minimize moisture buildup
- Improve year-round attic airflow
- Extend the life of roofing materials
- Support overall roofing system performance
The project also incorporated upgraded flashing and leak protection throughout the roof to better manage water around valleys, penetrations, chimneys, and roof transitions.
Complete Tear-Off and Roof Preparation
The existing roofing system was completely removed before installing the new materials, allowing the roof deck to be properly prepared.
The project also included:
- Complete tear-off of the existing roof
- Rooftop material delivery
- Dumpster service
- Magnetic roller nail cleanup
- Thorough jobsite cleanup after installation
Installing a complete roofing system over a properly prepared roof deck helps maximize long-term performance and manufacturer warranty coverage.
Long-Term Protection for the Home
The completed roofing system provides improved protection against Michigan’s wind, rain, snow, and freeze-thaw cycles while modernizing the home’s appearance with durable architectural shingles and upgraded roofing components.
The project is backed by both the GAF System Plus Warranty and RoofAdvisor’s 25-Year Workmanship Warranty, giving the homeowner long-term confidence in both the materials and installation.
Projects like this are common throughout Royal Oak, where many homes feature complex roof designs with multiple valleys, chimneys, and roof transitions that benefit from complete roofing system upgrades rather than simply replacing shingles.
