Plumbing involves the installation of pipes and fixtures to provide running water and sanitation in the roof deck. This can include installing sinks, toilets, and showers, as well as connecting to the main water and sewer lines in the building. Plumbing systems must be designed and installed to meet all relevant building codes and regulations, and must be properly vented to prevent the buildup of harmful gases.

Drainage is also an important consideration for roof decks, as it helps to prevent water damage and maintain the structural integrity of the building. Drainage systems can include gutters and downspouts to divert water away from the roof and foundation, as well as drainage tiles or pipes to carry water away from the roof deck itself. Proper drainage is essential to prevent standing water, which can lead to leaks, mold, and other issues.

In addition to plumbing and drainage systems, it is also important to consider the location and accessibility of these components. Pipes and fixtures should be located in areas that are easy to access for maintenance and repairs, and should be designed to minimize the risk of leaks or other issues.

Overall, plumbing and drainage are critical components of any roof deck design, and should be carefully planned and installed to ensure that the space is functional, safe, and comfortable. It is important to consult with a licensed professional to ensure that all plumbing and drainage systems meet all relevant building codes and regulations.