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1501.1 Add a second paragraph as follows:
For qualified historical buildings or properties, see 2016 California Historical Building Code.
(Amended by Ord. 65-19, File No. 190136, App. 4/12/2019, Eff. 5/13/2019)
1503.4 Add a second paragraph as follows:
All storm- or casual water from roof areas which total more than 200 square feet (18.58 m2
) shall drain or be conveyed directly to the building drain or storm drain or to an approved alternate location based on approved geotechnical and engineering design. Such drainage shall not be directed to flow onto adjacent property or over public sidewalks. Building projections not exceeding 12 inches (305 mm) in width are exempt from drainage requirements without area limitations.
1505.1 Revise the second sentence as follows:
1505.1 General. Roof assemblies shall be divided into the classes defined below. Class A or B roof assemblies and roof coverings required to be listed by this section shall be tested in accordance with ASTM E 108 or UL 790.
(Amended by Ord. 65-19, File No. 190136, App. 4/12/2019, Eff. 5/13/2019)
1505.1 Add the following at the end of the first paragraph:
Class B or better roof coverings shall be used on all buildings.
1505.1 Add the following second exception:
2. Detached accessory structures with a roof of less than 200 square feet (18.58 m2
) may have roof cover- ings of Class A, B or C.
Table 1505.1 Revise the table as follows:
TABLE 1505.1 – MINIMUM ROOF COVERING CLASSIFICATION FOR TYPES OF CONSTRUCTION
IA | IB | IIA | IIB | IIIA | IIIB | IV | VA | VB |
B | B | B | B | B | B | B | B | B |
1510.2.2 Add the following sentence at the end of this section:
Penthouses shall be of a size no larger than the minimum clearances required for the mechanical equipment to be installed or no larger than the vertical shaft opening in the roof.
1510.10 Add the following section:
1510.10 Occupied Roof decks. May be constructed of wood when the following conditions are met:
1. The occupied roof deck is less than 500 square feet (46.45 m2
) in area.
2. The deck boards are spaced not greater than 1/8 inch (3.2 mm) apart.
3. Any open space around the perimeter between the deck and the roof surface shall be enclosed to within 1 inch (25.4 mm) of the roof surface.
4. The decking is constructed of fire-retardant- treated wood approved for exterior use, or 2-inch (50.8 mm) nominal all heart redwood. Guardrails and fences may be constructed of any material permitted by this code.
5. The deck is installed on top of a Class A or B fire-resistive roof assembly. The deck shall not be considered part of such roof assembly.