Full Garage Roof Replacement in Freeport, NY
This detached garage in Freeport had an aging shingle roof with deteriorated decking and failing edge components. Water exposure and long-term wear had weakened the structure, making a full roofing system replacement necessary. SwiftBuild completed a complete tear-off and new Owens Corning roofing system installation to restore durability, protection, and long-term performance.
🔎 Existing Roof Condition
The old garage roof showed multiple issues that required more than surface repair:
- Worn and aging shingles
- Compromised and weakened plywood decking
- Outdated underlayment protection
- Deteriorated fascia and gutter system
To ensure long-term protection, SwiftBuild recommended a full system replacement from the deck up.

🪵 Step 1: Tear-Off & Deck Replacement
The project began with a complete removal of the existing roofing system.
- Full tear-off of old shingles and underlayment
- Removal of old, deteriorated plywood decking
- Installation of new 5/8” exterior-grade plywood for a strong structural base
A solid deck ensures the new roofing materials perform as designed and prevents future structural issues.

🛡 Step 2: Advanced Roof Protection System
SwiftBuild installed a complete moisture protection system designed to defend against leaks and harsh weather.
- New drip edge installation to protect roof edges
- Ice & Water Shield in leak-prone areas
- Synthetic roofing underlayment for breathable secondary protection
This multi-layer system improves durability and extends the lifespan of the roof.
🏠 Step 3: Owens Corning Shingle Installation
The garage was finished with high-quality Owens Corning shingles, known for their strength, weather resistance, and long-term performance.
- Professional installation following manufacturer guidelines
- Improved curb appeal
- Reliable protection against wind and rain

🔧 Step 4: Fascia & Gutter Replacement
To complete the project and ensure proper drainage, SwiftBuild replaced all failing edge components.
- Removal of old gutters
- New fascia board installation
- Installation of new gutter system
This protects the garage structure from water damage and directs rainwater away from the building.
🎥 Project Video
See the project in action:
▶ Watch Garage Roof Replacement Video
✅ Final Result
- New 5/8” plywood deck
- Ice & water shield protection
- Synthetic underlayment
- New drip edge system
- Owens Corning shingle roof
- New fascia and gutter system
- Complete, leak-resistant garage roofing system
The Freeport garage now has a strong, weather-resistant roofing system built to last and installed to professional standards by SwiftBuild.
Need Garage Roof Replacement in Freeport?
If your garage roof is aging, leaking, or showing structural wear, SwiftBuild provides full tear-offs, deck replacement, shingle installation, and gutter system upgrades.
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