REROOFING.
Los Angeles Municipal Code § 91.1512
in effectSEC. 91.1512. REROOFING.
(Added by Ord. No. 188,797, Eff. 12/31/25.)
Section 1512 of the CBC is adopted by reference, except CBC Sections 1512.3 and 1512.3.1 are not adopted and, in lieu, Los Angeles Municipal Code Subsections 91.1512.3 and 91.1512.3.1 are added.
91.1512.3. Roof Recover. The installation of a new roof covering over an existing roof covering shall be permitted where any of the following conditions occur:
1. Where the new roof covering is installed in accordance with the roof covering manufacturer’s approved instructions.
2. Complete and separate roofing systems, such as standing-seam metal roof panel systems, that are designed to transmit the roof loads directly to the building’s structural system and that do not rely on existing roofs and roof coverings for support, shall not require the removal of existing roof coverings.
3. The application of a new protective coating over an existing spray polyurethane foam roofing system shall be permitted without tear off of existing roof coverings.
EXCEPTION: A roof recover shall not be permitted where any of the following conditions occur:
1. The existing roof or roof covering is water-soaked or has deteriorated to the point that the existing roof or roof covering is not adequate as a base for additional roofing.
2. The existing roof covering is slate, clay, cement or asbestos-cement tile.
3. The existing roof has two or more applications of any type of roof covering.
91.1512.3.1. Roof Recovering. Roof covering may be applied over existing roofing in accordance with the Los Angeles Municipal Code Table 91.1512.3.1.
TABLE 91.1512.3.1
ALLOWABLE REROOFS OVER EXISTING ROOFING
EXISTING ROOFING | NEW OVERLAY ROOFING
BUILT UP | ASPHALT SHINGLE | TILE ROOF | METAL ROOF | MODIFIED BITUMEN | SPRAY POLY- URETHANE FORM
EXISTING ROOFING | NEW OVERLAY ROOFING
BUILT UP | ASPHALT SHINGLE | TILE ROOF | METAL ROOF | MODIFIED BITUMEN | SPRAY POLY- URETHANE FORM
Built Up | Yes | Yes (2:12) | Yes (2.5:12) | Yes | Yes | Yes
Asphalt Shingle | NP | Yes | Yes (2.5:12) | Yes | Yes | NP
Asphalt over Asphalt | NP | Yes | Yes | Yes | Yes | NP
Tile Roof | NP | NP | NP | NP | NP | NP
Metal Roof | NP | NP | NP | Yes | NP | NP
Modified Bitumen | Yes | Yes | Yes (2.5:12) | Yes | Yes | NP
NP = Not Permitted.
Note: (Minimum Roof Slope)
Source: City of Los Angeles, Charter and Codes (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/los_angeles/latest/lamc/0-0-0-200227Fetched: 10/24/2026