The Boral Steel® Cool Roof System, manufactured by Boral Roofing, is a high-performance roofing solution designed to keep the home warmer in winter and cooler in summer. The system consists of Boral Steel® Stone Coated Steel roofing, a lightweight roofing material at just 1.5 pounds per square foot that boasts the structural strength of steel, along with three additional key components: Boral® MetalSeal Underlayment, Boral Elevated Batten System (EBS) and a variety of hip and ridge ventilation products. Combined, these elements work in concert to greatly enhance the roof’s energy efficiency performance, providing the homeowner with a lasting roof as well as meaningful return on investment.
Notably, the Boral Steel Cool Roof System incorporates Above Sheathing Ventilation (ASV). Hot air rises, creating a natural convection effect, and is then exhausted through ventilation with continuous airflow across the roof deck. The result is a cooler attic and living space in the home below. No matter what installation method — whether direct-to-deck or EBS battens, a Boral Steel Stone Coated roof with ASV can help provide improved energy savings compared to asphalt shingles*.
*The Oak Ridge National Laboratory conducted a 12-month study on the effects of high IR pigments vs. metal roofs installed with airspace. The study showed that ASV can reduce heat flow into a building by nearly 30%, which can lead to an increase in year-round energy efficiency by reducing heat gains during the summer and heat losses during the winter. These dramatic results demonstrate Boral’s Elevated Batten System is just as important to achieving energy efficiency as reflective roofs.