The National Roofing Contractors Association's NRCA University has launched Energy Codes and Rating Systems for Roofing, an online educational program describing how roof systems can contribute to sustainable construction goals and presenting design options for improving roof systems with energy efficiency. Energy Codes and Rating Systems for Roofing is a self-guided module that will help participants become familiar with the U.S. Green Building Council's Leadership in Energy and Environmental Design (LEED) Green Building Rating System The BASIC steps are : 1. Clean the roof of debris. 2. WE cut back the asphalt shingles one foot around the perimeter of the roof. This allows room that will we need in the future . 3. Find the rafters supporting the roof from the inside. These will be on 16 inch centers once you locate the starting point…normally at the eave. 4. Mechanically attach the 1×4 furring strips to the existing rafters. We use stainless steel screws. If a thermal blanket is to be used , this is nailed into place before the furring strips.see this video on youtube 5. Mechanically attach the 1×4 furring strips around each penetration and any chimneys. These will box in the penetrations with the furring strips for metal panel attachment. 6. Depending upon the type of metal roofing to be installed, you either install the first eave trim (if you are doing a standing seam metal roof) or align your first metal roofing panel SQUARE to the front fascia board. This is IMPORTANT as this sets up the rib appearance from the street. The eave/fascia flashing is installed at this point. 7. Attach the metal roofing panels per the manufacturers specifications 8. We ascertain the general wind direction for the area and install the panels so that the lap of the panels with be downwind. This is crucial in high wind areas. 9. Care should be used when cutting out the metal panels for penetrations and should be as tight as possible around the penetrations while maintaining the ribs square to the front fascia. 10. As progress is made, we install the boots as we go ..this saves times later. Valleys are installed prior to the metal roofing panels as here 11. Be careful to follow those directions for the valleys. 12. All panels installed, we install any additional trim and flashing. The ridge vent is installed after both sides of the roof area are completed. 13. Chimney flashing is installed per the other videos. 14. Clean up and call your beer drinking buddies to see your brand new forever roof.

1. The National Roofing Contractors Association's NRCA University has launched
Energy Codes and Rating Systems for Roofing, an online educational program
describing how roof systems can contribute to sustainable construction goals and
presenting design options for building owners. Click here for more info
The National Roofing Contractors Association's NRCA University has launched
Energy Codes and Rating Systems for Roofing, an online educational program
describing how roof systems can contribute to sustainable construction goals and
presenting design options for improving roof systems with energy efficiency.
Energy Codes and Rating Systems for Roofing is a self-guided module that will
help participants become familiar with the U.S. Green Building Council's
Leadership in Energy and Environmental Design (LEED) Green Building Rating
System, the Green Building Initiative's Green Globes program, and energy-
efficiency calculators for buildings. Participants also will learn about vegetative,
photovoltaic and cool roof systems; how climate, geography and building use
affect energy efficiency; and how different organizations and agencies define
sustainability. Unless otherwise noted, the information contained in the module
relates to low-slope roof systems.
Energy Codes and Rating Systems for Roofing is one of seven modules in NRCA
University's Roofing, Energy and the Environment Series, an online educational
program aimed at helping roofing professionals and end users understand how roof
systems can contribute to energy conservation and environmental protection.
Other modules, Vegetative Roof Systems, Cool Roofs, and Photovoltaics and
Roofing, launched in late 2008 and early 2009. Upcoming modules are Energy
Efficiency in Roof Systems; EnergyWise Tutorial and Case Studies; and the
Roofing, Energy and the Environment Series Certificate Examination.
For more information, contact NRCA's Customer Service Department at (866)
ASK-NRCA (275-6722) o r info@nrca.net . Registration can be completed online
at www.nrca.net/nrcauniversity .
For more information
When we hear the term “green roofing” many things come to mind. This term can
refer to truly green roofs such as garden roofs, vegetative roofs or what National
Roofing Contractors Association has come to call landscape roofs.

2. These are typically low-slope roofing systems with vegetation in a growing
medium designed to cool a building through moisture evaporation from the plants
and to control storm water runoff.
But “green” roofing can also describe a roof system that has components of
sustainability. Did you realize metal roofing can be that type of roof? Yes, a metal
roof can be an environmentally responsible choice for a building owner. A roof
that minimizes its impact on the environment, from cradle to grave or one that
lowers cooling energy usage and the corresponding greenhouse gas emissions
associated with that energy, can be a green roof.
Besides, the U.S. Green Building Council defines green buildings using three
components of a design: the impact on the planet, the impact on the people
occupying the building and the financial impact on the building owner. The impact
on the planet is the true green aspect of sustainability. This refers to the carbon
footprint or the environmental impact of the building’s materials, construction
practice and operation over time. Let’s take a look at how metal roofing can
contribute to a building’s impact on the planet.
Cool metal roofing can contribute to the green building design as defined by
USGBC. Generally speaking a cool metal roof is one whose surface has relatively
high solar reflectance and high thermal emittance values. It helps to lower the
surface temperature, thereby lowering the heat gain into the building and reducing
the cooling energy requirements.
Another form of cool metal roofing is a roof installed in such a way as to create a
continuous airspace from eave to ridge. That type of installation technique is
called “above sheathing ventilation.” The air space created between the roof
material and the sheathing allows for natural convective cooling to take place,

3. which dissipates heat build up below the metal roof surface. Oak Ridge National
Laboratory has determined that ASV can lower the heat flow into the attic space
below the roof by 30 percent when compared to common direct-to-deck
installations. When ASV is combined with a cool or solar reflective metal roof
surface, the heat gain can be reduced by up to 45 percent. Metal roofing can be
installed with special clips, spacers or battens/counter-battens to create the
continuous air space. Some metal roofing products have an inherent air space
created by the nature of the profile.
Buildings consume 39 percent of our nation’s energy, which is higher than the
consumption of the transportation sector and the industrial sector. Today’s
designers are looking at any way to reduce the use of energy in a building. A cool
metal roof can certainly help to reduce cooling energy. This is a cost savings to the
building owner and a way to reduce CO2 emissions from the fossil fuel fired
power plant. It can also help to mitigate urban heat island effects in large
metropolitan areas where local air temperatures can be 6-12 degrees higher than in
the surrounding suburbs.
Metal roofing in general has a high-recycled content that lowers its impact on the
environment during manufacturing. Metal is also fully recyclable at the end of its
service life, which eliminates the old material from entering the solid waste
stream. To that point, according to the Steel Framing Alliance, more steel is
recycled than aluminum, paper, glass and plastic combined.
The longevity of metal roofing has environmental impacts as well. By delaying the
tear-off of a metal roof for decades, the impact from manufacturing more
replacement material is significantly reduced. Most coatings used on metal roofing
and natural metals in particular, retain their appearance and properties for decades.
Hence, the initial energy efficiency, color and reflectivity allow building owners to
enjoy the benefits of the product for a very long service life. The durability of
metal roofing also plays a role in a building’s re-use. Often the metal roof is
performing very well at a time when a building may be renovated for other
reasons. Again, avoiding the replacement of the roof has a great environmental or

4. green impact.
Finally, a metal roof can be part of a building design that harvests rainwater.
Increasing the conservation and efficient use of water is becoming more important
to owners and communities.
Water shortages in regions of the country and around the world are creating dire
conditions for the population. By incorporating a metal roof with a water
collection system for gray water usage or irrigation will reduce the amount of
potable water for those uses. The fact potable water has high-embedded energy for
the extraction, treating and transportation of the water to a building means any
effort to reduce its use will have positive environmental and energy impacts.
In today’s green building world, there are many rating, labeling and certification
programs. The EPA’s Energy Star program includes roofing products. Many metal
roofing products meet the Energy Star criteria for initial and aged solar reflectance
values.
In addition the USGBC’s Leadership in Energy and Environmental Design
building certification program allows cool metal roofing to indirectly contribute to
the points awarded to a building based on the integrated design of all components.
One point can be obtained for a Sustainable Site credit toward reducing urban heat
island effects, based on the Solar Reflectance Index criteria. Many metal roofing
products can meet that criterion, thereby allowing a metal roof to be part of the
building design.
Metal roofing has many other attractive features that benefit a building owner. Its
high strength to weight ratio, non-combustibility, resistance to wind, hail and
seismic activity and its design flexibility with unlimited choices in colors, textures
and profiles make metal a popular choice for a roofing material. Combining those

5. important features with the green aspect of metal roofing, only highlights why
metal’s share of the roofing market continues to grow.
Visit our site for more details http://www.metal-roofing-contractors.com