Code and General Information 2902.1: Minimum Fixtures
Water:
Plumbing fixtures shall be provided for the type of occupancy and in the minimum number shown in Table 2902.1. Types of occupancies not shown in Table 2902.1 shall be considered individually by the building official. The number of occupants shall be determined by this code. Occupancy classification shall be determined in accordance with Chapter 3. When the actual occupant load will be significantly different than that determined by Section 1004 of the building code, the buildig official may establish an alternative basis for determining the occupant load. This alternate basis shall be included in the special stipulations and conditions section of the Certificate of Occupancy issued for that structure pursuant to Section 110. For accessibility requirements, see “Chapter 11, Accessibility’ of this code.
Intent
The intent of the Water Petal is to realign how people use water and redefine ‘waste’ in the built environment, so that water is respected as a precious resource. Scarcity of potable water is quickly becoming a serious issue as many countries around the world face severe shortages and compromised water quality. Even regions that have avoided the majority of these problems to date due to a historical presence of abundant fresh water are at risk: the impacts of climate change, highly unsustainable water use patterns, and the continued drawdown of major aquifers portent significant problems ahead.
2902.2: Separate Facilities
Implementation
Where plumbing fixtures are required, separate facilities shall be provided for each sex
Our purposed building will strive to have net zero water by harvesting and treating rain water through our various roof and site gardens. A living machine will be introduced for the treatment and reuse of waste water. In addition to this, low-flow fixtures will be used throughout the building to reduce the of waste water. STUDENT PRODUCT BY amount AN AUTODESK
Legible signs shall be provided in accordance with Section 2902.5 Exceptions: 1- Separate facilities shall not be required for dwelling units and sleeping units. 2- Separate facilities shal not be required in structures or tenant spaces with a total occupant load, including both employees and customers, of 15 or less. 3- Separate facilities shall not be required in mercantile occupancies in which the maximum occupant load is 50 or less.
| Net Zero Water
The building will utilize a catchment system that allows the storage of grey water into cisterns for use in irrigation or non-potable uses. The building will use a living machine to recycle the everyday water uses.
| Ecological Water Flow
2902.3: Number of Occupants of Each Sex
By creating water storage on site, natural rainfall can be stored and used as a way to maintain the building and building agriculture.
The required water closets, lavatories and showers or bathtubs shall be distributed equally between the sexes based on the percentage of each sex anticipated in the occupant load. The occupant load shall be composed of 50 percent of each sex, unless statistical data approved by the building official indicate a different distribution of the sexes.
2902.4: Required Public Toilet Facilities Customers, patrons, and visitors shall be provided with public toilet facilites in structures and tenant spaces intended for public use as required in this code. Access to public facilities shall not pass through kitchens, storage rooms, closets or similar spaces not available to the public. Employees shal be provided with toilet facilities in a ll occupancies. Employee toilet facilities shall be either separate or combined employee and public toilet facilities.
Typical Bathroom Layout
2903.1: Water Supply Protection
Drinking Fountain Lavatories WC Supply/Waste Chase
The supply lines and fittings for every plumbing fixture shal be installed so as to prevent backflow.
Grey Water
2' - 7"
1' - 3"
3
2 1
4
3' - 11 5/8"
3
2' - 6"
2' - 7"
Typ Bathroom Plan 2
0
4
Average Rainfalll Design Precepitation (.8*Avg Rainfall) Area of Cathment Main Building Winter Garden Total Annual Catchment (.75*Design Precip*Area)
38.71 inches 30.96 inches
Occupants
3,461 people
Water Usage Daily Usage 90 Day Usage
15 gal/person/day 51,915 gallons 4,672,350 gallons
31,530 sqft 25,603 sqft 57,133 sqft 1,326,628.26 gallons
Max Rainfall per Hour Area of Catchment (main bldg) .0104(2.6)(catchment)
3.0 in/hr 31,530 sqft 852.57 GPM
Flow from Drain Size of Drain (Table 20.8)
8”
Slope of Horizontal Piping Max Area per Drain
1/4” 29,333 sqft
To maxamize rainwater storage, a 65,000 gallon cistern was chosen. The large catchments of both the main building and the Winter Garden help to maintain a healthy level of water in the cistern. Grey water usage will be used to flush toilets and irrigate greenery used for shading, the Winter Garden, and landscaping. With rainwater collection and the living machine, domestic use for irrigation and flushing is reduced to zero.
4 2
Roof Drain PRODUCED BY AN AUTODESK STUDENT PRODUCT
1' - 3"
5' - 3"
1 2 3 4
5' - 1"
ODUCED
Living Building Challenge Response
12
Plumbing General
P 100