1603. CONSTRUCTION DOCUMENTS

1603 CONSTRUCTION DOCUMENTS Insert a new Section 1603.1.3.1 into the Building Code to read as follows: 1603.1.3.1 Roof Drift on Existing Structures. It shall be the responsibility of the owner undertaking work on its premises to determine the impact of that work on the roof snow load of any adjacent existing structure(s). The following information shall be provided in any permit application for a new or altered building: The increased snow load on the roof of adjacent existing structure(s), if any, due to the proposed work; Information sufficient to show whether the roof of any adjacent structure can safely support any additional drift load caused by the work; and A plan to strengthen the roof of any adjacent structure so that it is able to support the new snow loads caused by the work. Exception: Items (b) and (c) are not required where: The proposed work will not increase the snow load on the roof of the adjacent structure above 30 psf; and The owner of the existing adjacent structure denies access to the owner undertaking the proposed work to inspect and measure the roof joists with ceiling access to determine whether the roof of the existing adjacent structure can support any additional snow drift loads caused by the work, and the owner undertaking the proposed work provides evidence of such denial in accordance with Section 3307.5.2. 1603.1.8 Special Loads. Insert new Section 1603.1.8.2 to the Building Code to read as follows: 1603.1.8.2 Superimposed Dead Loads. The assumed superimposed dead loads, including, but not limited to, hung ceilings, mechanical, electrical, and plumbing equipment shall be indicated on the construction documents. SOURCE: Final Rulemaking published at 67 DCR 5690 (May 29, 2020 – Part 2). The District of Columbia Building Code (2017), referred to as the “Building Code,” consists of the 2015 edition of the International Building Code (International Building Code), published by the International Code Council (ICC), as amended by the Building Code Supplement of 2017 (12-A DCMR). The International Building 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/IBC2015. District of Columbia Municipal Regulations Building Code Supplement of 2017 12-A DCMR § 1603