Environmental and health related criteria for buildings - ANEC

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IBO - Environmental and Health related Criteria for Buildings Amount to landfills and incinerators Reduced Construction Waste Increased Waste Diversion Points Pounds/ft² Cubic yards/1,000 ft² Percentage waste Percentage diverted 3.5 22.3 88% 13% 0.0 3.0 19.1 75% 25% 0.5 2.5 15.9 63% 38% 1.0 2.0 12.8 50% 50% 1.5 1.5 9.6 38% 63% 2.0 1.0 6.4 25% 75% 2.5 .5 3.2 13% 88% 3.0 Acceptable strategies for waste diversion include: Recycling; Third-party scrap reuse; On-site grinding of engineered lumber, untreated cellulosic material, and gypsum for use as a soil amendment. Unacceptable strategies for waste diversion include: Scrap reuse by the builder; Burying unground material on-site; Packing unused material into wall cavities; Grinding treated / finished wood as soil amendment; Incineration, even waste-to-energy applications If waste is processed by a waste management facility, the average monthly or annual diversion rate for the entire facility may be used for the purposes of this credit. This option is only acceptable if the waste facility data is available and verified by the Green Rater.” Construction Site (Environmental) Impacts Only impacts to soil are considered within LEED for Homes with respect to construction site activities (summarized to the subcategory SS1 Site Stewardship): - SS1.1 Erosion Controls during Construction - (which is a mandatory measure to achieve LEED rating) - SS1.2 Minimize Disturbed Area of Site All other issues assessed under the main category Sustainable Sites (SS) refer to the use stage of the building (Landscaping, Reduction of Local Heat Island Effect, Surface Water Management, Non-Toxic Pest Control and Compact Development). Construction site related issues (SS1.1 und SS1.2) contribute to one of 22 achievable points (within Sustainable Sites) and are therefore marginally weighted although the requirement for erosion controls during construction is a prerequisite. SS 1.1 Prerequisite: Erosion Controls During Construction “Erosion control measures must include all of the following: a) Stockpile and protect disturbed topsoil from erosion (for reuse). b) Control the path and velocity of runoff with silt fencing or comparable measures. c) Protect on-site storm sewer inlets, streams, and lakes with straw bales, silt fencing, silt sacks, rock filters, or comparable measures. d) Provide swales to divert surface water from hillsides. Final Report 114 31 03 2011
IBO - Environmental and Health related Criteria for Buildings e) If soils in a sloped area (i.e., 25%, or 4:1 slope) are disturbed during construction, use tiers, erosion blankets, compost blankets, filter socks and berms, or some comparable approach to keep soil stabilized.” The scheme LEED New Construcion & Major Renovations (2009) which is applicable for high-rise residential buildings (> 3 storeys) specifies the SS prerequisite 1 (Construction Activity Pollution Prevention) as follows: “For achieving a SS Prerequisite 1 an erosion and sedimentation control plan during design phase of the project must be created. The plan must conform to the erosion and sedimentation requirements of the 2003 EPA Construction General Permit 81 or local standards and codes, whichever is more stringent. The plan must describe the measures implemented to accomplish the following objectives: - To prevent loss of soil during construction by stormwater runoff and/or wind erosion, including protecting topsoil by stockpiling for reuse. - To prevent sedimentation of storm or receiving streams - To prevent pollution of the air with dust and particulate matter Consider employing strategies such as temporary and permanent seeding, mulching, earthen dikes, silt fencing, sediment traps and sediment basins.“ Whereas the current version of LEED for Homes applicable for small residential buildings (< 4 storeys) does not consider any measures to attenuate dust from construction site activities (the focus lies on erosion control and prospective planting), the more advanced (and comprehensive) scheme of LEED-NC 2009 re-names issue SS1 as “Construction Activity Pollution Prevention” and includes prevention measures of dust as well as particulate matter. SS 1.2 Minimize Disturbed Area of Site (1 point) To achieve one point, the following requirements have to be met depending on the lot’s size and its previous status: “Where the site is not previously developed 82 : a) Develop a tree or plant preservation plan with “no-disturbance” zones clearly delineated on drawings and on the lot (see Note 1 below). b) Leave undisturbed at least 40% of the lot area, not including area that is legally protected from disturbance, not including area under roof. Only softscapes can be counted toward this credit; projects cannot receive credit for preserving preexisting hardscapes, such as driveways. OR Where the site is previously developed: c) Develop a tree or plant preservation plan with “no-disturbance” zones clearly delineated on drawings and on the lot (see Note 1 below), and rehabilitate the undisturbed portion of the lot by undoing any previous soil compaction, removing existing invasive plants, and meeting the requirements of SS 2.2 (see Note 2, below). 81 The EPA’s (U.S. Environmental Protection Agency) construction general outlines the provisions necessary to comply with Phase I and Phase II of the National Pollutant Discharge Elimination System (NPDES) programm. More information is available under http://cfpub.epa.gov/npdes/stormwater/cgp.cfm 82 Undeveloped sites with substantial amounts of garbage and/or invasive weeds should be treated as previously disturbed sites. Final Report 115 31 03 2011
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Environmental and health related criteria for buildings - ANEC

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