Masonry Magazine November 2004 Page. 21
Credit 1- Optimize Energy Performance
This is intended to achieve increasing levels of energy performance above the prerequisite standard. One to 10 points can be awarded for improvements of 15 to 60% above the standard for new buildings or 5 to 50% improvement for existing buildings. The baseline standard used is ASHRAE /IESNA 90.1-1999. Improvements in performance are measured using the Energy Cost Budget Method found in Section 11 of the ASHRAE standard.
4. Materials and Resources (MR)
MASONRY CAN CONTRIBUTE up to 11 points (out of 13) toward LEED certification in this category. Credits are given for building materials harvested and manufactured locally, for materials with recycled content, and for reuse of building materials-all areas to which masonry can contribute.
Credit 1- Building Reuse
The intent of this credit is to extend the life cycle of existing building stock, conserve resources, retain cultural resources, reduce waste and reduce environmental impacts of new buildings. Credit 1.1 awards one point for 75% reuse of existing walls, floors and roof. Credit 1.2 gives one additional point for maintaining 100% of the existing walls, floors and roof. Changes proposed for LEED version 2.2 lower these thresholds to 40% and 80% respectively, making it easier to qualify.
Credit 1.3 awards one additional point for reuse of 50% of interior non-structural elements. Non-structural masonry walls and floors can contribute to this point.
Credit 2- Construction Waste Management
The intent of this credit is to divert construction, demolition and land clearing debris from landfill disposal. Scraps and broken pieces of concrete masonry can be crushed and used for aggregate or fill. Clay brick scraps can be crushed and used for landscaping as brick chips. Intact, unused masonry units can be saved to use on another project, or donated to Habitat for Humanity or other charitable organizations. One point is awarded for diversion of 50% of the construction, demolition and land clearing waste (Credit 2.1). One additional point is awarded for diverting 75% (Credit 2.2). Calculations can be done on a weight or volume basis.
Credit 3-Resource Reuse
This credit is intended for reuse of salvaged materials and products to reduce the demand for virgin products. Materials salvaged on site do not apply to this credit, but do count toward Credit 1-Building Reuse. Masonry materials such as brick can be salvaged, but the Brick Industry Association warns against their use. Used brick may not meet the requirements of present-day specifications and may not bond properly.
Radio Shack Corporate Headquarters, Fort Worth, TX
The Finest Structures
Rely on Mortar Net®
"The product is easy to install. A great product that makes sure the weep holes stay open."
Mark L. Little of Texas Stone & Tile, le
Project Manager Radio Shack Corp. Headquarters
The Mortar Net drainage system has a distinct advantage over the competition: shape. Its patented dovetail shape is the most effective method of ensuring your masonry walls breathe, drain and dry properly.
Mortar Net partners with Sarah Susanka at the International Builders' Show in 2005. Orlando, FL. January 13-15, 2005. Booth #10991.
NOT SO BIG
SHOWHOUSE
ORLANDO 05
Mortar Net
In The Cut
The Difference is in
MORTAR NET
Mortar Net's dovetail shape breaks up mortar on two distinct heights, ensuring a clear path for water to migrate out of the wall.
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CIRCLE 147 ON READER SERVICE CARD
The
Difference
is in the Cut
MORTAR NET VS. THE COMPETITION
STRAIGHT STRIP
Straight Strip's rectangular shape simply dams the mertar droppings higher in the cavity, forcing water to the interior wall
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The Voice of the Mason Contractor
November 2004
Masonry 19