Energy & Atmosphere
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      Minimum Energy Performance - Prerequisite 2
     Intent: Establish the minimum level of energy efficiency for the base building and systems.

      The thermal efficiency of lightweight concrete and masonry building components manufactured with
     ESCS  SLA can maximize the energy performance of the building, ensuring compliance with ASHRAE
     90.1 or the local energy code.

     Optimize Energy Performance - Credit 1 (1 to 10 Points)
      Intent: Achieve increasing levels of energy performance above the prerequisite standard to reduce
      environmental impacts associated with excessive energy use.

      Lightweight concrete masonry and structural lightweight concrete provide more thermal resistance
      than ordinary concrete and masonry, while maintaining the benefits of thermal mass.  Concrete and
     masonry building components made with ESCS  SLA optimize the combination of R-Values, thermal
     mass, and low thermal bridging to contribute significant energy cost savings compared with minimum
     compliance with ASHRAE 90.1.  When combined with other energy saving systems, lightweight concrete
     and masonry can contribute toward earning multiple points in this Credit category.

     Materials and Resources
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     Building Reuse: Maintain 75% of Existing Walls, Floors and Roof -Credit 1.1
    (1Point)      
    Building Reuse: Maintain 100% of Existing Walls, Floors and Roof -Credit 1.2
    (1 Point)
    Building Reuse: Maintain 100% of Shell/Structure and 50% of Non-Shell/Non-
    Structure -   Credit 1.3 (1 Point)
     Intent: Extend the life cycle of existing building stock, conserve resources, retain cultural resources, reduce
     waste and reduce environmental impacts of new buildings as they relate to materials and manufacturing and
     transport.

     Lightweight concrete masonry and structural lightweight concrete made with ESCS  SLA have been
     utilized in the reuse of countless buildings.  By utilizing lightweight concrete building components,
     existing buildings can often be renovated for a change in use while using original structural components
     and shell.

    Recycled Content: 5% (Post-Consumer + 1/2 Post-Industrial) - Credit 4.1 (1 Point)
    Recycled Content: 10% (Post-Consumer + 1/2 Post-Industrial) - Credit 4.2(1 Point)
     Intent: Increase demand for building products that incorporate recycled content materials, therefore reducing
     impacts resulting from extraction and processing of new virgin materials.
    
     ESCS  SLA is a manufactured material engineered to optimize the structural efficiency and energy
     efficiency of lightweight concrete products.  Although it is not a recycled material, the structural
    concrete and concrete product made with ESCS  SLA often also contain recycled materials, such as fly
    ash, allowing  them to contribute to these credits.

     Regional Materials: 20% Manufactured Regionally - Credit 5.1 (1 Point)
    Regional Materials: 50% Extracted Regionally - Credit 5.2 (1 Point)
     Intent: Increase demand for building materials and products that are extracted and manufactured within the
     region, thereby supporting the regional economy and reducing the environmental impacts resulting from
     transportation.

     Lightweight concrete products used for building materials are manufactured with ESCS  SLA at
     numerous facilities in close proximity to almost every building site (Credit 5.1).  The reduced weight of
     these products, a direct result of using ESCS  SLA, allows more products to be delivered per truckload,
     further reducing the environmental impacts resulting from transportation.  ESCS  SLA is manufactured
     at facilities throughout the U.S.A.  The 500-mile radius from these manufacturing locations
     encompasses many project locations (Credit 5.2).  However, for most projects, including those more
     than 500 miles from ESCS facilities, the lightweight concrete products made with ESCS  SLA contain
     less than 50% of this material, while the majority of the raw materials are extracted or manufactured
     locally.  In such cases, this credit can still be earned, even when the project is located more than 500
     miles from ESCS facilities.

    Indoor Environmental Quality
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       Thermal Comfort: Compliance with ASHRAE 55-1992 - Credit 7.1 (1 Point)
       Intent: Provide a thermally comfortable environment that supports the productivity and well being of building
       occupants.

       Lightweight concrete masonry and structural lightweight concrete made with ESCS  SLA are thermally
      efficient building materials.  They have higher R-values than ordinary concrete materials, and their
      thermal mass slows heat flow through them.  The result is a more stable indoor environment.




        

       Expanded Shale, Clay and Slate Institute, ESCSI
       2225 Murray Holladay Road • Suite 102 • Salt Lake City, UT 84117
       801.272.7070 • Fax 801.272.3377 •  email: info@escsi.org