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US TA/NAB/L/TY GREEN <br /> ��t�u���. <br /> EATURES cont'd <br /> D. Structure <br /> 1 . Recycled aggregate <br /> a. Minimum 25% recycled aggregate (crushed concrete) for fill, backfill & other uses <br /> 2. Engineered lumber or steel studs, joists, headers & beams <br /> 3. Optimal value engineering framing <br /> a. Studs at 24" centers on top floor exterior walls &/or all interior walls <br /> 4. Insulation <br /> a. All ceiling, wall, & floor insulation is 01350 certified or contains no added <br /> formaldehyde <br /> b. All ceiling, wall, & floor insulation has a recycled content of 50% or more <br /> 5. Moisture shedding & mold avoidance <br /> a. Building(s) include a definitive drainage plane under siding <br /> b. A minimum of 80% of kitchen range hoods are vented to the exterior <br /> 6. Green Roofs <br /> a. A portion of the low-slope roof area is covered by a vegetated of "Green" roof <br /> E. Systems <br /> 1 . Air conditioning with advanced refrigerants <br /> a. Install air conditioning with non-HCFC refrigerants <br /> 2. Advanced ventilation practices <br /> a. Operable windows or skylights are placed to induce cross ventilation in at <br /> least one room in 80% of units <br />