Date
Inquiry

Materials and Resources Credit 1: Building Reuse 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 manufacturing and transport. Reuse large portions of existing structures during renovation or redevelopment projects: MR 1.1: Requirements: Maintain at least 75% of existing building structure and shell (exterior skin and framing excluding window assemblies) MR 1.2: Requirements: Maintain an additional 25% (100% total) of existing building structure and shell (exterior skin and framing excluding window assemblies) MR 1.3: Requirements: Maintain 100% of existing building structure and shell AND 50% non-shell (walls, floor coverings, and ceiling systems) The existing building is a 60,000 sq. ft. structure with a 20,000 sq. ft. later addition. Both buildings consist of two-story mill construction with load-bearing brick exterior walls. The internal structure is heavy timber with wood truss roof structure and wood floors and roof. The later addition, which would have otherwise been retained, had to be removed because of the difficulty of seismically bracing that portion of the building. 100% of the exterior structure and shell and the interior non-shell elements of the original building were retained. The addition was carefully deconstructed and all of the wood elements and a portion of the brick walls were reused in the rehabilitation of the original building. The remaining bricks were sold for reuse in masonry construction; broken bricks and rubble were used as structural fill. A penthouse was added to the roof of the existing building, utilizing the framing members from the deconstructed addition. All of the existing wood floor deck was reused in the building either as refinished wood floor or structural subfloor and the existing exposed structure ceilings and walls were cleaned and remain exposed in the finished building, eliminating the need for new wall and ceiling finishes. Approximately 80% of the existing exposed interior surfaces remain as finished surfaces in the renovated interiors of the original building. We believe that we have met the intent of this credit through the following measures: we extended the life of the existing building, retained the original cultural resource, reduced demolition waste (97% of demolition and construction waste recycled), and reduced the need for the manufacture and transport of new materials through the reuse of the deconstructed building in the rehabilitation of the existing building. Have we achieved these three credits?

Ruling

Acheivement of this credit cannot be determined through review of a narrative. The calculation method for this credit is explained in the LEED Reference Guide. Use that method to determine if the project scheme meets the requirements for each of the three levels of building reuse. Applicable Internationally.

Internationally Applicable
On
Campus Applicable
Off