Reflective systems for low-slope roofs, and Title 24. Reflective systems in Los Angeles, specified to the Title 24 figure that actually applies to your slope.
Free inspection, the deck and layer count established, then a written quote.
The figure the city cares about on a low-slope replacement is aged solar reflectance index, and the threshold to clear is 75 or higher. Ask for it in writing: a product that cannot produce an aged SRI has not been tested for this.
California's Title 24 energy code sets reflectance and emittance requirements for many re-roofs, and a low-slope roof in Climate Zone 9 is squarely in scope. Meeting it is not optional, and it is much cheaper to plan for than to retrofit.
Silicone and elastomeric systems run $2.50 to $7.00 per square foot installed in California. Coating a sound low-slope roof is the cheapest way to meet the cool-roof requirement - full cool roofing runs $4 to $12 per square foot depending on the material. In the city the permit is part of the price. Re-roofing is permitted work through LADBS, and once more than half the roof area is being replaced the energy-code requirements come with it - on a low-slope roof that means a cool-rated product and an aged SRI of 75 or higher.
10, 15 and 20 year systems are different products at different prices. Ask which one you are being quoted.
Coating over trapped moisture seals the problem in. We establish the condition underneath first, and will say so if coating is the wrong answer.
Low slope is required statewide. Steep slope applies in climate zones 10 to 15 and Los Angeles is in 6, 8 and 9 - so a pitched roof here is generally exempt. A quote charging for it on a pitched roof is worth questioning.
Work in the city is permitted through LADBS and has to meet the Title 24 cool-roof requirements where they apply. That is not a detail to discover after the tear-off.
A coating is not a cure for a deck that has failed. Where the substrate is sound it lowers the surface temperature substantially, which slows everything that heat was doing to the roof underneath.
All roofing work in Los AngelesWorth knowing before you start ringing round, and worth factoring into anything with a deadline on it.
Contractor backlogs across Los Angeles have run four to twelve weeks through 2026, with labor rates 15 to 25% above where they were before the Palisades fire. Materials are up about 6% on last year and LA County labor another 8 to 12%.
A leak repair does not usually need an LADBS permit, but the line between a repair and a re-roof is a real one: once more than half the roof area is involved, the energy code requirements come with it.
Re-roofing in the city is permitted work through LADBS, and the permit brings an inspection.
A tile lift and relay does not change the covering, so it does not usually trip the energy-code thresholds a replacement would.
Low-slope is where the energy code actually bites in Los Angeles: cool-roof requirements for low-slope roofs apply statewide, in all sixteen climate zones.
Steep-slope cool-roof requirements run in climate zones 10 to 15, and Los Angeles sits in 6, 8 and 9.
Bungalows and low-pitch ranch, plus butterfly roofs.
Newer tracts, and most of the tile in this market.
Rambling single-story ranch, long runs, wide eaves.
Post-war west Valley. Surveyed before anything is quoted.
Big lots, outbuildings, and a Very High fire zone.
The wider Valley, ranch tracts and flat additions.
The questions that decide a job, answered before you ask.
It depends entirely on slope. Low slope is required statewide. Steep slope applies in climate zones 10 to 15, and Los Angeles is in 6, 8 and 9 - so a pitched roof here is generally outside the requirement. If someone is charging you for it on a pitched roof, ask which climate zone they think you are in.
Aged solar reflectance index, and for low slope the figure to clear is 75 or higher. Ask for it in writing - initial reflectance is a different and more flattering number, and a product with no aged SRI has not been tested for this.
Because most online figures are national. Asphalt shingle is about $8.50 per square foot here against roughly $4 nationally, and LA County labor is up 8 to 12% on last year. A quote that matches a national average is usually missing something.
For a full replacement in LA County, an estimated $10,000 to $25,000 covers most houses, and repairs usually run an estimated $350 to $1,500. The honest answer is that the range is wide because pitch, access, covering and what the old roof was hiding all move it - which is why the inspection is free and the quote is written down before any work starts.
Roofing in California requires a CSLB C-39 license, and the number is public - ask for it and check it on the CSLB register before anyone sets foot on your roof. Do that with every quote you get, not just this one.
Free inspection, written quote, and we will tell you if the cheaper option is the right one.