GAF Timberline ArmorShield II Roof Replacement in Lyons, CO – 22 Year Old Roof Replacement

Project Summary

We replaced the full roof on this Lyons, CO home in December 2025. Our team installed GAF Timberline ArmorShield II shingles in Charcoal, paired with GAF WeatherWatch Leak Barrier and GAF FeltBuster Synthetic Underlayment. The project included new ventilation components to improve airflow across the entire structure.

The Problem

Daniel reached out to us for an inspection of his home on Estes Park Estates Drive in Lyons. He was concerned about the condition of his roof and wanted to know if it needed repair or a full replacement. The house was built in 2002, making it Daniel's original roof at 22 years old.

During our assessment, we found that asphalt granules were coming off the shingles. There were no active leaks at the time of inspection, but the age and wear indicated the materials had deteriorated significantly. The attic space was too tight to access for a closer look inside. Given the advanced age and surface damage, repairing isolated spots would not have addressed the overall failure of the roofing material.

Why It Needed Replacing

The roof was 22 years old and the original installation for the home, meaning the asphalt was actively shedding from the shingles. A simple repair would not have been a lasting fix because new materials would not match the weathered existing ones and leaving the aging underlayment in place would likely lead to further failure.

What We Did

We began the project by removing the old roof and replacing damaged OSB roof decking where needed. Our team then installed GAF WeatherWatch Leak Barrier for added protection in critical areas, followed by a layer of GAF FeltBuster Synthetic Underlayment across the rest of the roof deck.

For the main roofing material, we used GAF Timberline ArmorShield II Shingles in Charcoal. These shingles are Class 4 impact-resistant to help protect against hail and debris. We secured them with GAF Pro-Start Starter Strip along the eaves and finished the peak with GAF Seal-A-Ridge AS Ridge Cap Shingles in Charcoal. To complete the installation, we added new drip edge along the eaves and rakes, installed new pipe jack flashing, and fitted the roof with new vents including GAF Cobra IntakePro Vent and GAF Cobra Snow Country Intake Vent.

Project Details

This home in Lyons, CO required a full roof replacement covering 25.6 roofing squares, which is roughly 2,560 sq. ft. The work involved removing the original shingles and updating all underlying components to current standards.

The project was completed in December 2025 after coordinating around winter weather conditions that required clearing snow from the roof before installation could begin.

Materials Used

• GAF Cobra IntakePro Vent
• GAF Cobra Snow Country Intake Vent
• GAF FeltBuster Synthetic Underlayment
• GAF Pro-Start Starter Strip
• GAF Seal-A-Ridge AS Ridge Cap Shingles in Charcoal
• GAF Timberline ArmorShield II Shingles in Charcoal
• GAF WeatherWatch Leak Barrier

Price Context

This project was completed at approximately $9 per sq ft installed. This is the complete installed scope for this home, including tear-off, trim, and labor, not just the cost of roof material alone, which is why a specific home's all-in rate usually runs above the general material range below. Because no two homes are identical, cost varies from home to home.

The price covers a full tear-off and replacement, permit, and labor. Homeowners considering a similar GAF ArmorShield II Shingles project in Colorado should generally expect pricing in the range of $6.75–$8.50/sq ft installed. Factors like roof pitch, the number of existing layers, and ventilation upgrades can adjust that baseline.

Pricing varies based on variables such as decking replacement needs, chimney or skylight flashing requirements, and local building-code mandates for impact-resistant materials. Many Colorado insurance carriers offer premium discounts for Class 4 roofs, which can help offset the initial investment over time. Pricing reflects WestPro project data and current Colorado Front Range supplier costs. For an exact price on your home, the best next step is a free, no-obligation inspection.

The Result

Finished in December 2025, this Lyons home now features a durable, modern exterior with GAF Timberline ArmorShield II Shingles in Charcoal. The Class 4 impact-resistant installation provides robust protection against hail and harsh weather conditions common to the area. Projects like this are common throughout Lyons and across the Colorado Front Range.

Thinking about a similar project for your home? Schedule a free inspection with WestPro to get started.