Entry Type ID Date Applicable Rating System Primary Credit Inquiry (LIs) Ruling (LIs) Related Addenda/LIs Related Resources Campus Applicable Internationally Applicable Country Applicability Reference Guide (Addenda) Page (Addenda) Location (Addenda) Description of Change (Addenda) "LEED Interpretation" "10057" "2011-05-09" "New Construction, Core and Shell, Schools - New Construction" "Is mesquite wood from the southwest is considered a rapidly renewable material? The tree can grow to maturity in 6 years." "Any source material which is typically regenerated within a ten-year cycle may be considered rapidly renewable. The submittal must include documentation from the wood supplier which describes their harvesting practices, and typical rate of harvest and regrowth." "None" "None" "LEED Interpretation" "1448" "2006-03-06" "New Construction, Schools - New Construction, Commercial Interiors, Core and Shell" "Our project is a renovation of a university dormitory. We request an interpretation of Materials and Resources Credit 6, Rapidly Renewable Resources. Specifically, we would like to know if plant material used in landscaping can qualify for this point. The LEED NC v2.1 Reference Guide defines rapidly renewable materials as those that ""...substantially replenish themselves faster than traditional extraction demand (i.e., planted and harvested in less than a 10-year cycle)."" All of the plants to be used on our site have been planted and harvested in less than a 10-year cycle. Landscaping is included in CSI Division 2 and all items in Divisions 2 through 10 are to be included when calculating this and other MR credits. Additionally, the Reference Guide shows a sample spreadsheet to calculate compliance with MR Credit 5.1 & 5.2 (Local /Regional Materials), which includes plantings as contributing towards that point. Since all MR points are supposed to include the same materials, it seems reasonable to include plantings in MR Credit 6 calculations, provided they are planted and harvested within a 10-year cycle. We ask for this interpretation because landscaping is not specifically mentioned in the Rating System or Reference Guide for MR Credit 6. Also, if it isn\'t allowed, a project is penalized for having extensive landscaping. Could you please confirm that rapidly renewable landscaping complies with the intention of this credit and should be included in the calculations?" "The strategy described is considered to be standard practice and does not fulfill the credit\'s intent to reduce the use and depletion of finite raw materials and long-cycle renewable materials by selecting rapidly renewable materials. The credit is concerned with manufactured building products. Plantings can not contribute to MRc6 achievement. You may exclude them from the denominator in all MR credit calculations so that projects are not penalized for having extensive landscaping. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "2535" "2009-04-22" "New Construction, Commercial Interiors, Core and Shell, Schools - New Construction" "We are seeking clarification on MR 7 as related to the use of FSC bamboo plywood and FSC bamboo flooring products. Similar to hardwoods, bamboo forests are most sustainable when only 20 percent of the bamboo is harvested in any given year, leaving the forest canopy uncompromised and the ecosystem intact. Poorly managed bamboo forests have detrimental effects on the local economy and the environment. With demand increasing for this natural resource, FSC certification of bamboo sources ensures proper harvesting to protect the local economy and the environment. Smith & Fong\'s bamboo resource was certified by the European FSC-certifier Institut f" "The project team is seeking clarification as to whether or not bamboo can be considered a compliant material under the guidelines set forth in MRc7. The bamboo products in question have been harvested and sourced by companies that possess the necessary and current certifications from the Forest Stewardship Council (FSC). This proposal is consistent with the credit intent to, ""Encourage environmentally responsible forest management"". In addition, bamboo is often used in many of the same applications as wood products, and is considered by the FSC to be a forest product despite its technical classification as a grass. Therefore, bamboo may be included in the calculations for both MRc6 and MRc7. If bamboo is added to the MRc7 calculations, all bamboo on the project (FSC or otherwise) must be accounted for in the value for all new wood-based components for the project. Applicable Internationally. " "None" "None" "X" "LEED Interpretation" "2549" "2009-04-17" "New Construction, Commercial Interiors, Schools - New Construction" "Our project is a hotel in Manhattan. The hotel is committed to using rapidly renewable materials in the form of wool carpeting and PLA fabrics. PLA (polylactic acid) fabrics are biodegradable polyesters derived from renewable resources such as corn starch and sugarcane. The hotel is also planning to use leather on the headboards in all guestrooms and would like to determine if leather products should be included in the calculations. The LEED-NCv2.2 reference guide defines rapidly renewable materials as an \'agricultural product, both fiber and animal, that takes 10 years or less to grow or raise, and to harvest in an ongoing fashion\'. Can the leather be considered a rapidly renewable material? How does the USGBC determine which animal agricultural products are included? Are there established standards or restrictions that must be met by the industry (i.e. humane treatment, use of by-products of other industries, etc.)?" "The project team is seeking clarification on the use of leather as a compliant material under the guidelines set forth in MR credit 6 regarding rapidly renewable materials. On page 411 of the LEED NC v2.2 reference guide ""rapidly renewable materials"" are defined as material considered to be an agricultural product, both fiber and animal, that takes 10 years or less to grow or raise, and to harvest in an ongoing and sustainable fashion. Although leather is an animal product, it is not deemed to be rapidly renewable as the leather material or hide may not be collected until after the death of the animal. An example an acceptable renewable animal source would be sheep\'s fleece. The fleece can be sheered from the animal without presenting harm to it nor does it prevent the animal from regenerating the material. Applicable Internationally. " "None" "None" "X"