Jaco Construction – Roofing Contractors LEED
The U.S. Green Building Council has developed the Leadership in Energy and Environmental Design (LEED®) Rating System to aid in the design and construction of buildings that have minimum negative impact on occupants and the environment. LEED provides standards for choosing products based on environmental attributes. LEED does not certify materials or products. Several attributes of the Duro-Last® Cool Zone® roofing system can help with LEED ratings.
The Duro-Last Cool Zone membrane has a Solar Reflectance Index (SRI) of 110. To meet LEED requirements as a cool roofing membrane it is necessary to have an SRI of at least 78 for low-sloped applications for a minimum of 75% of the roof surface. (Sustainable Sites Credit 7.2)
A product must comply with ASHRAE Standard 90.1-2004 by having at least 70% reflectivity and .75 emittance to meet Prerequisite 2 of the Energy and Atmosphere section. At 86% and .95 respectively, the Duro-Last Cool Zone membrane exceeds the standard. By exceeding the standard, Duro-Last Cool Zone will also help reduce energy costs when compared to the energy cost budget of a building's design. (Energy and Atmosphere Credit 1)
The longevity of a Duro-Last Cool Zone roof will help extend the lifecycle of an existing structure and will reduce load on air conditioning units. (Materials and Resources Credits 1.1 - 1.2)
What Our Clients Say
My name is Hollis Porcher, and I have been involved in the roofing industry since 1953. Thirty-seven of those years were spent with a large and highly reputable roofing contractor, and this is where I learned how and why a good roof system performs well for its expected life span. Most roof systems were a built-up type, and used asphalt or coal tar pitch as the bitumen. Needless to say, I have observed the introduction and failures of many new and innovative systems.
Click to view the complete letter in pdf format sent by Mr. Porcher.
Hollis R. Porcher
Porcher, Inc.
Custom pre-fabrication allows Duro-Last contractors to virtually eliminate waste at the jobsite. During manufacturing, nearly 100% of pre-consumer scrap and trim is recycled. With manufacturing facilities strategically located around the United States, a Duro-Last Cool Zone roof requires less than 500 miles of shipping to many states. (Materials and Resources Credits 2.1-2.2, 4.1-4.2, 5.1-5.2)
With the Duro-Last two-way vent system, negative air pressures and condensation are kept in check. And the high reflectivity helps keep the building cooler, thus allowing air conditioning units to operate more effectively. (Indoor Environmental Quality Credits 2 and 7.1).