A108. INDOOR ENVIRONMENTAL QULAITY AND COMFORT

A108 INDOOR ENVIRONMENTAL QUALITY AND COMFORT Strike Table A108 in Appendix A of the International Green Construction Code in its entirety and insert new Table A108 in Appendix A of the Green Construction Code in its place to read as follows: TABLE A108 INDOOR ENVIRONMENTAL QUALITY AND COMFORT PROJECT ELECTIVES SECTION DESCRIPTION MINIMUM NUMBER OF ELECTIVES REQUIRED AND ELECTIVES SELECTED A108.2 VOC emissions – flooring Yes No A108.3 VOC emissions – ceiling & wall systems Yes No A108.5 Architectural paints and coatings Yes No A108.6 Views to building exterior – 75 percent Yes No A108.6 Views to building exterior – 90 percent Yes No A108.7 Post-construction, pre-occupancy baseline IAQ testing project electives (2) Yes No A108.8 Adhesives and sealants Yes No A108.9 Post-construction, pre-occupancy flush out Yes No Strike Section A108.3 in Appendix A of the International Green Construction Code in its entirety and insert new Section A108.3 in Appendix A of the Green Construction Code in its place to read as follows: A108.3 Ceiling and wall materials project elective. Where projects are intended to qualify for a ceiling and wall materials project elective, all ceiling and wall systems shall comply with Chapter 8 or shall be one or more of the following ceiling or wall systems that are deemed to comply with VOC emission limits: Ceiling Systems: 1. Ceramic tile. 2. Clay masonry. Concrete. Concrete masonry. Metal. Organic-free, mineral-based. Wall Systems: Ceramic tile. Clay masonry. Concrete. Concrete masonry. Metal. 6. Organic-free, mineral-based. Strike Section A108.4 in Appendix A of the International Green Construction Code in its entirety without substitution. Strike Section A108.5 in Appendix A of the International Green Construction Code in its entirety and insert new Section A108.5 in Appendix A of the Green Construction Code in its place to read as follows: A108.5 Architectural paints and coatings project elective. Where projects are intended to qualify for an architectural paints and coatings project elective, 100 percent of the non-specialty paints and coatings shall have VOC limits that are more than 50 percent lower than the thresholds in Table 806.4(1) and 100 percent of the specialty coatings shall meet the requirements in Table 806.4(1). Strike Section A108.6 in Appendix A of the International Green Construction Code in its entirety and insert new Section A108.6 in Appendix A of the Green Construction Code in its place to read as follows: A108.6 Views to building exterior project elective. Where projects are intended to qualify for a “views to building exterior” project elective in accordance with Section A108.6, not less than 75 percent of the net floor area shall have a direct line of sight to the exterior through clear vision glazing. A total of not less than 45 square feet (4.18 m2) of clear vision glazing in the exterior wall or roof shall be visible. The direct line of sight shall originate at a height of 42 inches (1067 mm) above the finished floor of the space, shall terminate at the clear vision glazing in the exterior wall or roof, and shall be less than 40 feet (12 192 mm) in length. Projects that have a direct line of sight to the exterior for 90 percent of the net floor area shall qualify for an additional project elective. Exception: Where the direct line of sight is less than 25 feet (7620 mm) in length, a total of not less than 18 square feet (1.67 m2) of clear vision glazing in the exterior wall or roof shall be visible. Insert new Sections A108.7, A108.8, and A108.9 in Appendix A of the Green Construction Code to read as follows: A108.7 Post-construction, pre-occupancy baseline IAQ testing project electives. Where projects are intended to qualify for these two project electives, after all interior finishes are installed the building shall be tested for indoor air quality and the testing results shall indicate that the levels of VOCs are less than 50 percent of all of the levels detailed in Table 806.1 of the Green Construction Code using testing protocols in accordance with ASTM D6196, ASTM D5466, ASTM D5197, ASTM D6345, and ISO 7708. Test samples shall be taken in not less than one location in each 25,000 square feet (1860 m2) of floor area or in each contiguous floor area. A108.8 Adhesives and sealants project elective. Where projects are intended to qualify for an adhesives and sealants project elective, 100 percent of the adhesives and sealants shall have VOC limits that are more than 50 percent lower than the thresholds in Table 806.3(1). A108.9 Post-construction, pre-occupancy flush out. After construction ends, and prior to occupancy and with all interior finishes installed, install new filtration media and perform a building flush-out by supplying a total air volume of 14,000 cubic feet of outdoor air per square foot (4,500 cubic meters of outdoor air per square meter) of floor area while maintaining an internal temperature of at least 60°F (15°C) and relative humidity no higher than 60 percent. 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 § A108