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SO WHAT MAKES STONEEDGE™ "GREEN"?

Our LEED Assessment Promise

Terrazzo has a long and rich history that dates back over 1500 years. Terrazzo, comes from the Italian word for terraces, and is one of the original recycled products created centuries ago by Venetian workers utilizing the waste pieces from the marble industry.

Today terrazzo flooring continues to provide durability and low maintenance, and it is common for this flooring choice to last the life of the building. Beauty, durability, and low maintenance have led to a re-discovery of the use of terrazzo over the past decade. The demand for terrazzo is continuing to increase in many markets, from value engineering driven institutions such as airports, schools, and hospitals; to designer driven markets of commercial, and retail buildings, and recently to include residential clients with discriminating taste. Terrazzo is the ultimate choice when evaluating flooring on a life cycle basis.

Just recently the construction, and manufacturing industries have begun to focus on the environmental impact of many construction materials. The evaluation of products in the “green movement” encompasses many elements, which must be weighed on a scale of relative importance. These elements include the longevity of the material, the composition, maintenance, recycled content, embodied energy, and the “cradle-to-grave” environmental impact.

Our LEED Credits

MRcr1.3 Building Reuse Credit - 1 Point
Terrazzo floors typically last the life of the structure. In many renovation projects, the original terrazzo flooring has been restored to its original luster following some inexpensive repairs and refinishing. Refinishing of terrazzo can be combined with the reuse of other nonshell areas like walls, doors, and ceiling systems to achieve 50% reuse.

MRcr4.1 & 4.2 Recycled Content Credit - 2 Points
Terrazzo allows for easy incorporation of recycled glass, as well as stone or marble that has been salvaged from other buildings and re-crushed and sieved for the terrazzo trade. One point is granted for 10% recycled content and a second point for an additional 10% (20% total) of the total value of the materials on the project. A floor containing 100% recycled glass would contain as much as 65% by volume of recycled product. Aluminum strips may also contain recycled metal. The credit is based on the dollar value of the raw material.

MRcr5.1 & 5.2 Local Regional Materials Credit - 2 Points
One point is awarded if 10% of the project building materials is extracted, harvested or recovered, as well as manufactured within a 500-mile radius of the project and the calculation is based on the cost of the raw materials. The marble chips, glass aggregate, are available throughout the United States. Terrazzo can contribute to the credit if the raw material supplier is located within 500 miles of the project site. A second point is awarded if the total percentage of the cost of regional materials is at least 20%.

MRcr2.1 & 2.2 Construction Waste Management Credit - 1 to 2 Points
StoneEdge™ can be a part of the construction waste management team and assist in the reclamation of waste from the construction process. In projects that require demolition of existing structures, the StoneEdge™ contractor can be part of the construction waste management team - reclaiming aggregate and thereby avoiding disposal into the landfill. If desired, the salvaged aggregate can potentially be used in the flooring of the new building project.

EQcr4.1 Indoor Emitting Materials Credit 4.1 or 4.2 - 1 Point
The Cement based StoneEdge™ system uses inorganic binders containing no Volatile Organic Compounds VOC’s.

IDcr1 Innovative Design Credit - 1 point
StoneEdge™ can also potentially gain additional points under the Innovation and Design category for innovative performance in Green Building categories not specifically addressed by LEED. Extensive use of StoneEdge™ as a predominant floor material can potentially result in an installation with a Life Cycle Analysis that exceeds that of other floor materials. Overall, on typical projects, StoneEdge™ can realistically contribute to five LEED credits: MRcr4 (2), MRcr5 (2) EQcr4.1(1). On a case-by-case scenario, terrazzo may also be able to contribute to MRcr1.3 (1), and in extreme cases Idcr1 (1) and MRcr2 (1), for a total of 8 points.

Downloads

LEED Credits Data Sheet

LEED Credits Worksheet

There are many reasons why Terrazzo is not only beautiful, but sustainable as well.

Durability

Sustainable construction is at the core of green construction. Terrazzo floors have the ultimate record in performance dating back over a thousand years. The floors will typically last the lifetime of the structure, and in many older buildings, the floors can be restored to their original luster at a fraction of the cost to replace the flooring.

Low Maintaince & Cost

Annual stripping and resealing utilize environmentally friendly waterbased products allow terrazzo floors to be burnished to a luster as shiny as new. These floors require nothing more than the routine maintenance of dry and damp mopping, with an occasional spray buffing. In comparison, carpet, tile, and vinyl require energy intensive daily vacuuming and periodic steam cleaning and attention grout lines and seams, and will be replaced about every 5 to 7 years.

Composition

StoneEdge™ is composed of naturally occurring aggregates, recycled glass and processed cement with polyacrylate binders. The binders constitute approximately 30% of the volume of the terrazzo matrix; the remainder of the mix is composed of aggregates, pigments, and fillers. Initial life cycle assessments of embodied energy appear extremely favorable due to the longevity and low energy usage for maintenance of terrazzo floors.

Recycled & Reused Content

Many glass aggregate suppliers are currently providing post consumer recycled glass to the marketplace. Several slab marble and granite quarries have supplies of post-industrial stone left from slab granite and marble processing. Aluminum divider strips can also incorporate recycled metal.

Air Quality

StoneEdge™ is comprised of zero VOC materials. StoneEdge™ exhibits little or no off gassing over the life of the cured floor. The micro-porous, low maintenance floor finish does not support microbial growth, nor allow moisture to accumulate, helping to maintain a bacterial; mold free environment with improved indoors air quality.

Local Sourcing

StoneEdge™ is manufactured from mostly local aggregates and materials minimizing waste and transportation costs. By comparison, much of the marble and ceramic floor tile used in the United States is manufactured overseas. Depending on the specific StoneEgde™ finish chosen, some of the materials may be from outside the United States. In this case the foreign material is unique and used as accent color with most of the materials originating from stone sources that are within a 500 mile radius of Mesa, Arizona.