The proposed project site is located on a military base that has potentially unexploded ordnance on-site.Protection from potential detonation during construction is required by the federal government to shield pedestrians and existing housing across the street from the project site. As a part of the project, a detonation barrier is to be constructed prior to start of excavation. This barrier can be built using various material but must have substantial foundations and structural strength to withstand large explosion forces. After construction is completed, the detonation barriers would be deconstructed to allow access to the site.The project team is proposing to incorporate salvaged local material into the design of these barrier walls. May the salvaged material qualify for MR credit 5 for regional material, MR credit 4 for recycled content?
The project team has inquired whether materials used for a temporary (during construction) detonation barrier can be included within the project material cost accounting since it is mandated to be built, particularly as it relates to recycled content, local material content, and construction waste management. No, the LEED Reference Guide for Green Building and Construction 2009 Edition Materials and Resources credits 3, 4, 5,and 6 "Include only materials permanently installed in the project" temporarily installed materials are considered equipment and cannot be included in MR Credits 3-6.