Meeting Congressional Mandates for Energy Efficiency
Roofing systems from Sika Sarnafil are ideally suited to fulfill the Congressional requirements of U.S. government procurement agencies — now under newly established directives to incorporate energy efficiency and sustainability into all facets of building construction.
Sika Sarnafil roofing systems have a documented history of performance that, in addition to watertight protection, includes energy efficiency, durability, recycling, and solar integration. These attributes are critical to sustainability and are specifically called for in recently enacted federal policies.
The company’s vinyl roofing systems comply with federal directives for sustainable construction far better than other types of roofing systems, including metal, bitumen, EPDM, TPO, and asphalt shingles.
Sika Sarnafil is a leader in the manufacture of cost-effective, high-performance vinyl roofing and waterproofing systems. The company’s record of achievement spans more than 40 years. Some 15 billion square feet of roofing and waterproofing membrane have been manufactured and used to protect facilities worldwide. Included are U.S. government complexes, universities, museums, hospitals, stadiums, and a full range of commercial and industrial facilities.
In recent years, dozens of federal agencies have relied on the performance of Sika Sarnafil roofing systems.
The Energy Policy Act of 2005 (EPACT) includes key initiatives directed to government personnel responsible for the design, purchasing, construction, and maintenance of federal facilities. EPACT was reinforced in 2007 by Executive Order Number 13423, which was designed to develop high performance, sustainable government facilities. EPACT seeks, among other things, to optimize energy performance, promote energy efficiency, and reduce greenhouse gas emissions.
Newly quantified thresholds for energy conservation, along with corresponding timetables, were established. All new construction programs and major remodeling projects are expected to meet these targets.
The new directives mandate that Energy Star®- qualified or FEMP-designated1 products or systems be utilized whenever available.
Additional requirements include integrated design within all building programs and projects, use of renewable energy, the acquisition of green products and services, increased diversion of solid waste, and cost-effective waste prevention and recycling programs.
The white EnergySmart Roof® from Sika Sarnafil delivers a solar reflective index (SRI) of over 100.
The exceptional radiative properties of the roofing membrane help to minimize the heat signature of buildings, reduce air-conditioning cooling loads, and mitigate the urban heat island effect.
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Making the Case for Sustainability... Sika Sarnafil Roofing Systems Deliver
Roofing systems from Sika Sarnafil are a valuable resource to government agencies seeking to fulfill new directives relating to sustainable construction.
Buildings consume 40 percent of primary energy and 72 percent of the electricity in the U.S. Total energy expenditures for federal government facilities alone were $4.26 billion in 2005. A large percentage of that energy usage is to cool buildings. Even in colder climates, many buildings are airconditioned year-round due to internal heat.
Preventing solar radiation from elevating a building’s internal temperature is an important strategy in reducing building cooling energy consumption.
Dark colored surfaces can be up to 70 degrees hotter in the sun than reflective white surfaces. This can have a tremendous impact on building heat gain. A study of buildings in Sacramento and Florida found that replacing a building’s dark colored roof with a white reflective roof could reduce cooling energy consumption by 40 percent.
According to the U.S. DOE, replacing dark colored roofs with light colored, reflective roofs could result in national energy savings of about $750 million per year.
Sika Sarnafil’s EnergySmart Roof features a light colored surface that reflects a high percentage of solar radiation. This roofing membrane exceeds the cool roof requirements of Energy Star, California’s Building Energy Code (Title 24), LEED, and Green Globes.
Greenhouse Gas, Pollution, and Urban Heat Island Mitigation
Carbon dioxide emissions are a major contributor to global warming. Buildings account for 35 percent of the emissions in the U.S. Replacing dark colored roofs with reflective, light colored roofs on 80 percent of commercial building air-conditioned roof areas could reduce carbon dioxide emissions by 6.23 metric tons per year.2
Sika Sarnafil’s EnergySmart Roof helps minimize the urban heat island effect caused in large part by a high density of dark colored surfaces in an urban environment.
Durability and Longevity
Sika Sarnafil roofs last for decades. Independent scientific research organizations have evaluated and documented this performance…
- An independent panel consisting of industry consultants and government-related organizations from the U.S. and Canada studied the service life of roofing membranes. The group issued an interim report in 2005 indicating that Sika Sarnafil’s composite score was excellent and that the company’s membranes performed well in virtually all categories.3
- The National Research Council of Canada (NRCC) collaborated with Sika Sarnafil on a longevity study of Sarnafil vinyl roof systems. Data showed that properly formulated, reinforced Sarnafil thermoplastic roof membrane systems, when properly maintained, could perform in excess of 20 to 30 years in various climates throughout Europe and North America.4
- The British Board of Agrément (BBA) conducted an independent analysis of Sarnafil vinyl roof membranes based, in part, on the NRCC study. The BBA issued a certificate indicating, “All available evidence suggests that the durability of Sarnafil membranes, when used in accordance with the relevant BBA Certificates, should have a life in excess of 35 years.”5
The Solar Electric Roofing System integrates the company’s reflective EnergySmart Roof with lightweight, thin-film photovoltaic cells. The system’s clean power improves the building’s energy efficiency and reduces utility bills. Building owners save money, especially during peak demand periods, and may get credit for feeding excess solar power into the local electrical grid.
Green roofs are healthy, sustainable and regenerative roof landscapes beneficial to the surrounding environment. Sika Sarnafil has been waterproofing green roofs for more than 35 years.
Sika Sarnafil recycles more than 4 million pounds of membrane trimmings annually. In addition, a post-consumer recycling program allows building owners to recycle vinyl roofs at the end of their useful life. Millions of square feet of old roofing membrane have been recycled into new roofing products.
Life Cycle Analysis
Carbotech, a leading European consulting firm, performed a comparative life cycle analysis of the most widely used low-slope roofing systems. The Sarnafil membrane received the highest rating.
The New England Region of the U.S. Environmental Protection Agency awarded the prestigious Environmental Merit Award to Sika Sarnafil in 2005 for exceptional work and commitment on behalf of the environment.
Long-term Relationship with Federal Agencies
System configurations from Sika Sarnafil adapt well to typical military environments, including coastlines where high winds and driving rains can pose problems for other roofing systems.
The company has a Metal Retrofit System that is an ideal replacement for failing metal roofs now on U.S. military facilities.
The variety of colors available with Sika Sarnafil systems meet military requirements. Membranes are available in seven standard colors and virtually unlimited custom colors.
U.S. Postal Service
The company has installed millions of square feet of vinyl roofing on postal service facilities. Many of these facilities function as Processing and Distribution (P&DC) centers.
General Services Administration
As the government’s property owner, GSA has orchestrated the specification of Sika Sarnafil roofing systems on dozens of client-agency facilities.
U.S. Department of Energy
The company received the 2005 Premier Business Partner award for its commitment to the Rebuild America program, and for helping communities to save energy. It was the second time Sika Sarnafil received the award.