Energy Efficient Roofing

To make a smart choice for your next roof, consider the Five E’s of high performance roofing: Energy, Environment, Endurance, Economics, and Engineering.

A high-performance roof can be a powerful asset in reducing energy consumption and improving long-term energy efficiency. When used with appropriate insulation on low-sloped or flat roofs, a high-reflectivity, high-emissivity an S3 – Energy Efficient Roofing System can:

  • Reduce building energy consumption by up to 40 percent
  • Improve insulation performance to reduce winter heat loss and summer heat gain
  • Preserve the efficiency of rooftop air conditioning
  • Potentially reduce HVAC capacity requirements

S3 – Energy Efficient Roofing Systems meet these “cool roofing” standards for both reflectivity and emissivity:

  • ENERGY STAR® Roof Product Program
  • Cool Roof Rating Council

In addition, the energy savings are generated immediately and last for decades. Unlike reflective coatings, the single-ply monolithic roofing system won’t crack, peel, or wear away. Our cool roof performance is the fast, easy, and cost-effective route to greater energy efficiency that lasts.

In addition to reducing energy use, the S3 – Energy Efficient Roofing System can minimize environmental impact:

  • A high-reflectivity, high-emissivity can decrease the effects of Urban Heat Islands and related urban air pollution
  • Can often be installed over an existing roof, reducing waste, landfill space, and disposal costs.

Duro-Last: Defining Rooftop Sustainability

In the commercial roofing industry, reflectivity has been the dominant discussion point for several years, and the Duro-Last® Cool Zone® roofing system has set the standard for single-ply roof reflectivity and the resulting energy savings. Now the term “sustainability” is receiving a lot of attention, and once again, Duro-Last is raising the bar.

But what does sustainability really mean for building owners, facility managers, architects, and other specifiers? It means that the design, manufacture, maintenance, life-cycle impact, adaptive re-use, destruction, and recycling of roofing components help meet the long-term environmental standards demanded by today’s high performance buildings.

For a roofing system to be considered sustainable, it must have the Five E’s of high-performance roofing: Energy, Environment, Endurance, Economics, and Engineering. In each of these areas, the Duro-Last Cool Zone system leads the commercial roofing industry.

Read on to learn more about the Five E’s and how the Duro-Last Cool Zone roofing system delivers on the multiple demands of high-performance roofing.

The Five E’s of High Performance Roofing

A truly “cool” roof is one that provides trouble-free service, competitive life-cycle costs, and environmental advantages. We’ve defined five interrelated attributes that are important in the selection of a high-performance roofing system. We call them the Five E’s:

Energy – With energy costs continuing to rise, it’s more important than ever to select a roof that can reduce energy use and improve a building’s efficiency in any climate.

Environment – High-performance roofing minimizes the impact on the Earth’s environment throughout the roof’s life, while also helping to maintain a healthy, productive environment inside the building.

Endurance – A high-performance roof meets or exceeds performance requirements for long life: all-weather reliability; chemical, fire, and puncture resistance; and ease of maintenance and repair.

Economics – A high-performance roof has to make economic sense, not just at
the time of purchase, but also in the long run. A true economic comparison analyzes the cost of a roof throughout its life-cycle.

Engineering – Utilizing the right materials, design, and manufacturing process is the key enabler of the other four E’s, resulting in a complete, integrated roofing system that can be installed easily and performs reliably over the long run.

When you consider these Five E’s, alone and together, high performance roofing takes on a new meaning, and one very cool solution emerges: the Duro-Last Cool Zone roofing system.

Energy Efficiency Delivered by “Cool Roof” Reflectivity

A high-performance roof can be a powerful asset in reducing energy consumption and improving long-term energy efficiency. When used with appropriate insulation on low-sloped or flat roofs, a high-reflectivity, high-emissivity Duro-Last Cool Zone roofing system can:

  • Reduce building energy consumption by up to 40 percent
  • Improve insulation performance to reduce winter heat loss
    and summer heat gain
  • Preserve the efficiency of rooftop air conditioning
  • Potentially reduce HVAC capacity requirements

Duro-Last Cool Zone roofing systems meet these “cool roofing”
standards for both reflectivity and emissivity:

  • ENERGY STAR® Roof Product Program
  • Cool Roof Rating Council
  • Title 24 of California’s Energy Efficiency Standards for Residential and Non-residential Buildings

In addition, the energy savings of a Duro-Last Cool Zone roofing system are generated immediately and last for decades. Unlike some “garden” roof systems, there is no waiting for plants to grow, no weight concerns, and no ongoing maintenance. And unlike reflective coatings, the single-ply monolithic Duro-Last roofing system won’t crack, peel, or wear away. Our cool roof performance is the fast, easy, and cost-effective route to greater energy efficiency that lasts.

Better for the Environment – Inside and Out

In addition to reducing energy use, the Duro-Last Cool Zone roofing system can minimize environmental impact in several ways:

  • Our closed-loop manufacturing process recycles production scrap, reducing waste
  • Because the roofing system is lightweight, less fuel is needed to transport it to
    the job site
  • A high-reflectivity, high-emissivity Duro-Last Cool Zone system can decrease the
    effects of Urban Heat Islands and related urban air pollution
  • The Duro-Last Cool Zone system can often be installed over an existing roof, reducing waste, landfill space, and disposal costs. If installation over the existing roof is not possible, Duro-Last offers a “Recycle Your Roof” program, which reduces disposal costs of PVC membrane tear-offs.
  • At the end of its life as a roof, the Duro-Last Cool Zone roofing system can be recycled into other useful products such as specialty flooring (manufactured by Oscoda Plastics Inc., Duro-Last’s sister company) and other post-industrial applications

A Duro-Last Cool Zone roof can also contribute to better indoor air quality and occupant comfort. With optimized insulation and venting, it can help to keep buildings dry and relieve positive air pressure to keep indoor air cleaner.

Endurance That Passes the Test of Time

If you’re looking for a roof that will last, consider our track record. More than one billion square feet of Duro-Last membrane have been installed throughout North America since the late 1970s – and many of our oldest roofs are still in service today. What makes a Duro-Last Cool Zone roofing system so durable? Each roof we make is:

  • Resistant to water, fire, chemicals, grease, and punctures
  • Able to stand up to all types of weather – including high winds and temperature
    extremes over the long-term
  • Virtually maintenance-free, unlike other roofing materials that may require regular
    patching and repairs
  • Reinforced with a high-density weft-insertion scrim for exceptional strength
    and durability

Not only does a Duro-Last Cool Zone roof perform well over the years, it can actually help extend the useful life of other building components. By keeping moisture out while reflecting ultraviolet (UV) and infrared (IR) radiation, it can help to protect underlying insulation and the roofing substrate from deterioration.

Duro-Last protects commercial and industrial installations with a comprehensive 15-year full warranty or a 20-year prorated warranty. Both are transferable and both provide maximum protection, including coverage against consequential damages that result from defects in the Duro-Last material. And both warranties offer a feature that’s unique among roofing system manufacturers: they contain no exclusion for ponding water.

Better Economics over the Long Haul

While some types of roofing may have lower initial costs, the true costs of a roofing system are measured over its total life-cycle. These include roof longevity, maintenance and repair costs, energy savings, and tear-off and disposal costs.

A Duro-Last Cool Zone roofing system delivers excellent life-cycle economics. Key benefits include:

  • Reduced installation costs through custom factory prefabrication
  • Low maintenance and repair costs
  • A standard warranty that provides protection from interior damage costs through leak-proof performance
  • Savings incurred through reduced energy consumption, and related rebates or incentives

Expert Engineering Enables Long-Lasting, Money-Saving Performance

Every Duro-Last Cool Zone roof is designed to be a completely integrated system, prefabricated to the exact measurements of each building. Up to 85 percent of membrane seaming is completed in a factory-controlled environment. Plus, roof stacks, flashings, and edge details are also completed at the factory and shipped to the job site as part of the complete roofing system. The few remaining seams are then hot-air welded on-site by an approved contractor and inspected by a Duro-Last technical representative before a warranty is issued.

Thanks to the precision fabrication of Duro-Last roofing systems, installation is much faster and less disruptive than for a typical “roll-goods” roof. The installation process is quiet, with no noxious fumes or flames, so building occupants can continue with their regular routines.

The exceptional performance of our lightweight system can often eliminate the need to tear-off the existing roof, saving hundreds, perhaps thousands of dollars in labor costs, and keeping truckloads of material out of landfills.

When You Think Sustainability, Start at the Top

If you’re looking for sustainable building solutions that meet long-term environmental standards, start with a high-performance Duro-Last Cool Zone roofing system. It offers much more than reflectivity and energy savings. It offers long-lasting, money-saving, and sustainable solutions for all your high-performance needs: Energy, Environment, Endurance, Economics, and Engineering.

If you want to know more about the Duro-Last Cool Zone roofing system, visit us at www.duro-last.com/coolzone or call us toll-free at 800-248-0280 today. You can also request our free brochure: How to Make Your Roofing Investment Pay Off. It offers a worksheet for calculating the life-cycle cost of your roofing system investment.

Roofing Selection Check List

To make a smart choice for your next roof, consider the Five E’s of high performance roofing: Energy, Environment, Endurance, Economics, and Engineering. The Roofing Selection Check List includes the key questions to ask in each area and will help you choose a roofing system that meets your performance requirements.

Check the box for a “yes” answer. For “no” answers, leave the box unchecked and note any concerns.

1. Energy

  • Does the roof meet EPA ENERGY STAR® criteria?
  • Have potential energy savings of the roofing system been determined, using the EPA ENERGY STAR online calculator?
  • Does the roof meet the ASHRAE 90.1 standard, making it eligible for Federal tax incentives?
  • In California, does the roof meet the requirements of Title 24?
  • Does the roof qualify for local energy credits or tax breaks?

2. Environment

  • Is the roof ENERGY STAR-labeled by the EPA ENERGY STAR Roof Products Program?
  • Does the roof contribute toward green building certifications?
  • Is a system/material Life-Cycle Analysis available?
  • Is the roofing material recyclable?
  • Is pre-consumer production scrap generated during manufacturing, recycled?
  • Does the roofing manufacturer have a post-consumer recycling program?
  • Does the roofing system help to moderate interior temperatures in summer and winter?
  • Does the roofing system help deliver good indoor air quality (IAQ)?

Additional considerations:

  • How many runs to the local landfill will be needed?_________________________
  • What are the anticipated costs for disposal?_________________________________

3. Endurance

  • Does the roofing manufacturer have a good reputation?
  • How many years in business? ________
  • Does the manufacturer inspect the roof after installation?
  • Does the manufacturer have local references for this type of roofing system?
  • Does the roofing contractor have a good reputation?
  • How many years in business?: _________
  • Are contractor’s employees fully-trained and supervised at the job site?
  • Does the manufacturer train and monitor contractors and grade each installation?
  • Does the warranty cover the entire roofing system, including installation defects?
  • Does the warranty include coverage for ponding water or consequential damages?
  • Is there a full warranty when installed over an existing roof?

Additional considerations:

  • If this roof type has failed in the past, what have been the primary reasons for system failure?________________________________________________________________
  • How were failures resolved?____________________________________________________
  • How often are routine maintenance and simple repairs required?__________________

4. Economics

  • Is a roof tear-off required before installation? Yes No
  • Does this roofing system require tear-off and disposal at the end of its service life? Yes No

5. Engineering

  • Is this the best roofing system for my roof deck?
  • … for my building?
  • … for this climate?
  • Has drainage been adequately designed to ensure water run-off?
  • Does the roof meet all local roofing code specs?
  • Is the roofing material fire resistant?
  • Can the manufacturer provide a wind calculation for me?
  • Does the roof membrane have the highest density reinforcement scrim for superior strength performance?