Most Torrance zips, including the coast and Old Torrance, are in Title 24 zone 6. Two inland zips near El Camino College, 90504 and 90506, are in zone 8, and that changes what a reroof there has to meet.
What's going on with your Torrance roof?
Torrance zips 90501, 90502, 90503 and 90505, which cover most of the city including the coast and Old Torrance, sit in Climate Zone 6. The inland zips 90504 and 90506 around El Camino College sit in Climate Zone 8.
The split matters on a reroof. Zone 8 is covered by the steep-slope single-family cool-roof rule (zones 4 and 8–15), so a tile or shingle reroof there generally has to meet a minimum reflectance and emittance standard, or use an allowed alternative such as added ceiling insulation. Zone 6 has no cool-roof requirement for a steep-slope single-family reroof; only the low-slope rule (zones 4 and 6–15), which covers flat sections, applies there. The thresholds are the same in both. The California Energy Commission's climate zone lookup is the authority for any single parcel.
Torrance is served by Southern California Edison, not LADWP, so the LADWP Consumer Rebate Program's cool roof rebate does not apply to any Torrance address, in either zone. See our Title 24 & cool roof rebate guide for what does apply.
Climate zone assignment by zip: SoCalREN Climate Zone Directory, County of Los Angeles, source California Energy Commission. Steep-slope/low-slope rule scope: Cool Roof Rating Council, California Title 24 summary (2025 Energy Code; reroof values unchanged from 2022).
Torrance isn't part of the City of Los Angeles, so reroofs here don't go through LADBS. The Torrance Building and Safety Division, 3031 Torrance Blvd, runs its own online permit system with separate Reroof (Residential) and Reroof (Commercial) applications, where you upload plans, pay the fee and track status. Some projects need zoning clearance from the Planning/Environmental Division first, a step LADBS reroofs generally skip.
If your address is in Old Torrance, one more thing to check: the city's Historic District office shares the same 3031 Torrance Blvd address as Building and Safety. Old Torrance, the original 1912 planned community centered on Gramercy and Andreo avenues, has been reported as under review for formal historic-district classification, and its status as an adopted district is unsettled. Whether a reroof there needs design review is a question for the Historic District office, so ask before finalizing a material choice.
The original Old Torrance streets, laid out in 1912 with Mission Revival and Irving Gill-influenced design, carry a fair amount of clay tile roofing. Tile often outlasts the underlayment under it, so a leak can come from underneath the tile rather than through it.
Away from Old Torrance, much of the city is mid-20th-century single-family construction, where composition shingle roofing is the material to check first, on both sides of the zone 6/zone 8 line.
Garage conversions, additions and commercial buildings often carry a flat or low-slope roof, which needs its own drainage and flashing check separate from a pitched main roof.
Torrance varies block to block, so the zip and the roof type are the two facts that decide most of what a reroof involves.
Torrance is flat to rolling coastal-plain terrain, without the chaparral hillsides that drive Very High Fire Hazard Severity Zone mapping in cities such as Glendale or Pasadena. Western Torrance sits under a marine-layer influence, consistent with its zone 6 designation, and near the coast salt air and marine moisture are generally understood to age metal flashing and fasteners faster than inland. Confirm any address on CAL FIRE's map, since state map updates are ongoing.
No. Torrance is served by Southern California Edison, not LADWP, and the LADWP Consumer Rebate Program's cool roof rebate is only open to LADWP electric customers inside the City of Los Angeles. SCE's current published residential rebate catalog does not list a comparable cool-roof cash rebate for Torrance homeowners.
It depends on your zip code. Zips 90501, 90502, 90503 and 90505, which cover most of the city including the coast and Old Torrance, fall in Title 24 Climate Zone 6. Zips 90504 and 90506, further inland near El Camino College, fall in Zone 8. The California Energy Commission's climate zone lookup is the authority for any single parcel.
Yes. Torrance has its own Building and Safety Division at 3031 Torrance Blvd, separate from LADBS, with distinct online Reroof (Residential) and Reroof (Commercial) permit applications. Some projects need zoning clearance from the Planning/Environmental Division before Building and Safety will issue the permit.
Its status is unsettled. Old Torrance, the original 1912 planned community around Gramercy and Andreo avenues, has been reported as under review for historic-district classification, not as a finalized, regulated district. Check with the city's Historic District office, which shares the Building and Safety address, before assuming a reroof there does or doesn't need design review.
Torrance is a flat-to-rolling coastal-plain city without the chaparral hillside terrain that drives fire-zone mapping elsewhere in LA County, so hillside Class A requirements aren't the concern here that they are in the hills. Confirm any address on CAL FIRE's current map.
Torrance sits in the South Bay, alongside Redondo Beach, Manhattan Beach and Palos Verdes. To the east, Long Beach is another split-zone city with its own historic-district review process. To the north, toward LAX, see roofing in Inglewood. For the wider county, start at Roofing Los Angeles.
Tell us your zip, the roof type if you know it, and what you're seeing.