408. HEAT ISLAND MITIGATION

408 HEAT ISLAND MITIGATION Strike Section 408.1 of the International Green Construction Code in its entirety and insert new Section 408.1 in the Green Construction Code in its place to read as follows: 408.1 General. The heat island effect of building and building site development shall be mitigated in accordance with Section 408.2. Strike Section 408.2.2 of the International Green Construction Code in its entirety and insert new Section 408.2.2 in the Green Construction Code in its place to read as follows: 408.2.2 Shading by structures. Where shading is provided by a building or structure or a building element or component, such building, structure, component or element shall comply with the following: Where open trellis-type free standing structures, such as, but not limited to, covered walkways, and trellises or pergolas, are covered with native plantings, the plantings shall be designed to achieve mature coverage within five years; and Shade provided onto the hardscape by an adjacent building or structure located on the same lot shall be calculated and credited toward compliance with this section based on the projected peak sun angle on the summer solstice. Strike Section 408.3 of the International Green Construction Code in its entirety without substitution. SOURCE: Final Rulemaking published at 67 DCR 6509 (May 29, 2020 – Part 2). The District of Columbia Green Construction Code (2017), referred to as the “Green Construction Code,” consists of the 2012 edition of the International Green Construction Code (International Green Construction Code), published by the International Code Council (ICC), as amended by the District of Columbia Green Construction Code Supplement of 2017 (12-K DCMR). The International Green Construction Code is copyrighted by the ICC and therefore is not republished here. However, a copy of the text may be obtained at: https://codes.iccsafe.org/public/document/toc/548/. District of Columbia Municipal Regulations Green Construction Code Supplement of 2017 12-K DCMR § 408