Insurance-Driven Roof Replacement with Ventilation Upgrade in Charleston, SC

A family in the Avondale area of the West Ashley neighborhood in Charleston, SC contacted our team after receiving a notice from their insurance company stating that their aging roof needed to be replaced or their coverage could be at risk. The home’s roof had reached approximately 20 years of age, and the homeowners wanted a reliable roofing contractor to inspect the system and recommend the best path forward. Our inspection confirmed that while the roof had reached the end of its service life, the home had fortunately not yet experienced active leaks. The project ultimately became an opportunity not only to satisfy the insurance requirement but also to upgrade the roofing system and improve attic ventilation for the property.

Project At-a-Glance

• Roof Size: 26 squares (≈2,600 sq ft)
• Roof Type: Class 3 architectural asphalt shingle roofing system
• Shingle Brand: Owens Corning Duration
• City: Charleston, SC
• Project Duration: 1 day

Challenge: Aging Roof Required Replacement to Maintain Insurance Coverage

During our inspection of the Charleston property, we found several indicators that the existing roofing system had reached the end of its functional life. The shingles were severely sunbaked and brittle, with widespread delamination and deterioration consistent with a roof approaching two decades of exposure to coastal weather conditions.

Pipe boots were also beginning to perforate, which is a common failure point on older roofing systems. While these conditions meant the roof required replacement, the good news was that the decking beneath the shingles remained solid. There was no evidence of soft decking, and the homeowners reported no known leaks inside the home. This confirmed that the replacement could be completed proactively rather than as an emergency repair.

Another issue discovered during the inspection was limited attic ventilation. The home relied on gable vents but lacked ridge ventilation, which can reduce airflow and trap heat in the attic during Charleston’s hot summers.

Solution: High-Performance Owens Corning Roofing System with Improved Ventilation

To provide long-term protection and meet the insurance company’s requirements, we recommended installing a complete Owens Corning roofing system designed for durability, code compliance, and improved ventilation.

Key steps in the project included:

• Removal of the aging 20-year-old roofing system
• Inspection of roof decking to confirm structural integrity
• Installation of two layers of synthetic underlayment to meet local building code requirements
• Installation of aluminum drip edge for improved water management and code compliance
• Application of ice and water shield in all valleys for enhanced leak protection in vulnerable areas
• Installation of Owens Corning Duration Class 3 architectural shingles
• Cutting in and installing a ridge vent system to improve attic airflow and ventilation performance
• Full site cleanup and final inspection

The homeowners also chose to update the home’s appearance by switching from the original charcoal shingle color to Williamsburg Gray, creating a noticeable aesthetic improvement that complemented the architecture of the home.

Result: Insurance Compliance, Improved Energy Performance, and Long-Term Protection

The entire roofing installation was completed in just one day, minimizing disruption for the homeowners while delivering a fully upgraded roofing system. After installation, the home now has a modern architectural shingle roof designed to withstand the coastal climate of Charleston, SC.

The addition of ridge ventilation significantly improves attic airflow, helping reduce heat buildup and potentially lowering cooling costs during the summer months. Proper ventilation also supports the long-term performance of the roofing system by reducing moisture accumulation and extending shingle lifespan.

With the new roofing system installed, the homeowners now have the documentation required to demonstrate compliance with their insurer’s request for roof replacement, protecting their coverage while also enhancing the durability and value of their home.

Trust & Proof: Certified Installation with Industry-Leading Warranty Coverage

This Charleston roofing project was installed by an Owens Corning Platinum Preferred Contractor, a certification held by a small percentage of roofing companies nationwide. This status allowed the homeowners to receive the Owens Corning Platinum Protection Limited Warranty, which includes:

• 50-year limited lifetime material warranty
• 25-year manufacturer-backed workmanship warranty

In addition, the project is backed by our RoofServ Premium 10-year workmanship warranty, providing an additional layer of protection and peace of mind.

The result is a roofing system that not only satisfied the homeowner’s insurance requirements but also improved ventilation, enhanced curb appeal, and delivered long-term protection for their Charleston home.