Monday, September 28, 2009

Looking Beyond LEED for Masonry Green

There has been a lot of discussion over the years about how masonry can contribute LEED (Leadership in Energy and Environmental Design) points for architects and building owners who are seeking LEED Certification for their projects. Most of the interest to date has been focused on points available for the recycled content of our materials and/or whether or not our manufacturing plants and their associated raw materials are located regionally within 500 miles of a project site.

To a lesser extent there has also been interest in gaining points through “construction waste management” by the efficient use of our materials and minimal packaging, utilizing lighter colored masonry materials to combat the “heat island effect”, permeable paving for “stormwater management” and in using masonry’s inherent mass to “optimize energy performance”.

But one area that has been overlooked by LEED is “life cycle costs”. Masonry is a strong and durable material. Certainly most of us when thinking of blocks of stone, concrete or bricks would agree. Masonry does not require a lot of maintenance. It’s insect and water resistant. It will not provide a medium for mold growth and it will not burn. When properly designed and constructed, masonry structures have very long service lives. We see this everyday in schools, libraries, courthouses, etc., that were built at the turn of the last century and are now being renovated for another 100 yrs of service life. In short, because masonry lasts so long and requires such little maintenance, it is arguably one of the most cost effective materials on the market today.

Critics will argue that the amount of heat energy needed to manufacture brick is an excessive cost, without putting it in the context of its long life. The actual “embodied energy” of brick (the energy required to mine, manufacture, and transport) is actually less than that of concrete, glass, steel, aluminum, EIFS, wood and fiber cement products (AIA Environmental Resource Guide). Recent research data published by the National Brick Research Center, Clemson University, clearly shows that when cradle-to-grave assessments of all energy and pollution generated to manufacture building materials “over the warranted life” was chosen, brick, with its 100 year life span clearly comes out the winner.

It is unfortunate that the current LEED protocol does not effectively recognize the life cycle cost of building materials. Doesn’t masonry deserve the credit?

Steve Hubbard
Distributor Sales Manager

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