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Elk River Library Elk River Library <br />1 / 18/2008 <br />Construction Application <br />Heat Island Effect: Non-Roof Credit 7.1-Version 2.2 <br />Construction Application 2/3/2009 <br />The LEED Submittal Template has been provided stating that 44% of the nonroof impervious surfaces onsite <br />have been paved with highly reflective materials and will be shaded within 5 years. Calculations provided in the <br />submittal claim that of the 8,876 sq.ft. of total non-roof impervious surfaces, (23.4%) have been paved with non- <br />colored concrete and 7,799 sq.ft. (20.6%) will be shaded within 5 years. However, the area requirement for <br />implementing non-roof heat island effect strategies is 50% of the site hardscape. While a landscape plan has <br />been provided, the LEED boundary used for area calculations is unclear. Additionally, areas consisting of highly <br />reflective materials as shaded areas which contribute to credit calculations are not clearly identified in the <br />provided site plans. <br />TECHNICAL ADVICE: If area calculations are able to demonstrate 50% compliance within the LEED boundary <br />please provide an updated LEED Submittal Template along with a site or landscape plan which clearly identifies <br />the boundary used for credit calculations. Note the LEED boundary must be used consistently throughout all <br />applicable credit calculations. Additionally, please clearly indicate on the site or landscape plan all areas within <br />the LEED boundary which contribute to the SRI and shade requirements. <br />Heat Island Effect: Roof <br />Design Application <br />Credit 7.2-Version 2.2 <br />9/20/2007 <br />The LEED Submittal Template has been provided stating that roofing materials for 100% of the project's roof <br />surface meet the SRI requirements of the credit. The project roof plans have been provided. <br />Page 4 of 13 <br />