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How Synthetic Felt Underlayment Boosts a Roof’s Energy Efficiency

a home with a new roof

As a professional roofer, you know the importance of every layer in a high-performance roofing system. Synthetic felt underlayment is a key component for enhancing durability and energy efficiency. At Vanboxel Building Supply, we provide the advanced materials you need to deliver superior results for your clients.

felt underlayment being installed

Enhances Thermal Performance

Unlike traditional asphalt felt, synthetic underlayment offers superior thermal resistance, acting as an effective secondary barrier against heat transfer. This layer helps keep the attic space cooler in the summer and warmer in the winter, reducing the load on HVAC systems and creating a more comfortable indoor environment for property owners.

rain running off a roof

Provides Superior Moisture Protection

Moisture intrusion can compromise insulation, drastically reducing its R-value and leading to energy loss. Synthetic felt is highly water-resistant, protecting the roof deck from wind-driven rain and ice dams. By keeping the insulation dry and effective, it ensures the entire roofing system maintains its intended energy-efficient performance for years.

a roof being installed

Reduces Air Leakage

Synthetic underlayment is laid flat and seals securely around fasteners, creating a formidable air barrier. This significantly reduces air leakage through the roof deck, preventing conditioned air from escaping and outside air from entering. Minimizing this air exchange is crucial for maintaining stable indoor temperatures and lowering overall energy consumption.

roof shingles

Ensures Long-Term System Integrity

The durability of synthetic felt ensures it won’t degrade under harsh UV exposure during installation or buckle over time. This long-term integrity ensures that the roof’s energy-efficient properties are maintained throughout its service life. For your clients, this translates to consistent energy savings and confidence in the quality of your work.

an infographic summarizing the blog

Ultimately, incorporating synthetic felt underlayment is a strategic choice that enhances a roof’s energy efficiency, moisture resistance, and overall longevity. It’s an investment in quality that your clients will appreciate. For all your high-performance roofing materials, partner with Vanboxel Building Supply. Explore our product range or contact our team for a quote.

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