Daly City · San Mateo County
Commercial Roofing in Daly City: Multifamily, HOA and Fog-Belt Roofs
Multifamily, HOA and commercial roofs across Daly City.
- Free roof condition report before the rains
- Good, better and best bid options
- Certificate of insurance within 24 hours of request
Daly City's multifamily and townhome roofs
The California Department of Finance counts 8,539 units in 5+ unit buildings, 5,214 single-attached units and 4,090 units in 2–4 unit buildings in Daly City, population 101,898 (January 1, 2026). Together that's 17,843 of the city's 34,366 housing units, about 52% (17,843 ÷ 34,366).
That means a lot of flat and low-slope roofs on apartment buildings and townhome rows, many of them planned on HOA reserve-study cycles. See HOA and condo roofing and roofing for property managers.
Illustrative image, not a completed project.
Daly City's re-roof permit rules
- A permit is required for each roofing job of more than one square (100 square feet), and it must be issued before work begins (City of Daly City, Roofing Permit & Inspection Requirements).
- The City requires roofers to have an appropriate state license, a valid Daly City business license and a current workers' compensation certificate (same page).
- The re-roofing application asks for the number of squares, the existing and new roof types, whether it's a complete tear-off, the applied weight of the new roofing and whether new plus existing roofing weighs more than 6 psf. Every roof needs a minimum Class B fire classification (City of Daly City, Re-roofing Permit Application).
Next door, South San Francisco publishes its own re-roofing handout (City of South San Francisco).
Fog-belt roofs
NOAA's San Francisco Oceanside station, on the ocean edge just north of the city, averages 20.64 inches of rain a year, December wettest at 4.22 inches. Average highs stay between 59°F and 66°F in every month: July averages just 61.8°F, and the warmest month is October at 66.4°F (NCEI, 1991–2020 normals).
Roofs stay cool and damp through the summer fog, so moisture lingers at seams, flashings and drains, and exposed metal faces salt air. See flashing, sheet metal and drainage.
Title 24 on nonresidential re-roofs
Daly City ZIP codes 94014 and 94015 are in climate zone 3 (CEC ZIP list). On nonresidential low-slope roofs, California's Energy Code applies cool-roof requirements when the area replaced, recovered or recoated is more than 50% of the roof or more than 2,000 square feet, whichever is less (Energy Code §141.0(b)2B). The new surface must be a CRRC-rated product that meets the code's reflectance and emittance minimums, and a re-roof over conditioned space in Bay Area climate zones 3, 4 and 12 generally also needs R-23 continuous insulation (BayREN, Table 141.0-C). Recoats are exempt from the insulation rule. Our Title 24 re-roof guide walks through the trigger, the cool roof values and the insulation rule.
Common calls in Daly City
Parapet and flashing leaks
On apartment flat roofs. See commercial roof repair.
Ponding at drains
Standing water on low-slope roofs with slow or clogged drains.
Worn coatings
Coatings breaking down on older flat roofs. See roof coatings.
Townhome flat sections
Low-slope roofs over garages at HOA communities.
Who we work with in Daly City
HOA boards & community managers
A photo-documented condition report and board-ready good, better and best options.
Property managers
A line-item scope to forward to the owner, and a COI within 24 hours of request.
Nearby
San Francisco: north across the county line, sharing the same fog belt.
South San Francisco: east, with the Peninsula's biotech and lab buildings.
San Mateo: south down the Peninsula, with more office and multifamily stock.
The rest of the county: commercial roofing in San Mateo County.
Frequently Asked Questions
Above 100 square feet, yes. Daly City requires a permit for each roofing job of more than one square, issued before work starts. Roofers need a state license, a Daly City business license and workers' comp coverage, and every roof needs at least a Class B fire classification.
Commercial Roofing Inc. repairs, inspects, coats and replaces roofs on Daly City apartment, HOA and commercial buildings. We photograph every roof section and send a line-item scope boards and managers can compare. Call (408) 770-5992 or request a bid.
Summer fog keeps roofs cool and damp. NOAA's normals for the San Francisco Oceanside station, just north of the city, show average highs between 59°F and 66°F all year. Moisture lingers at seams, flashings and drains, so clear drainage and regular checks matter even outside the rainy season.
The number of squares, the existing and new roof types, whether it's a complete tear-off, the applied weight of the new roofing and whether new plus existing roofing weighs more than 6 psf. It also asks for the fire classification, Class B at minimum.
Climate zone 3, for ZIP codes 94014 and 94015, per the California Energy Commission. Nonresidential low-slope re-roofs covering more than half the roof or more than 2,000 square feet, whichever is less, need a CRRC-rated cool roof and, over conditioned space, R-23 continuous insulation.
Let's get started
Request a bid for a Daly City building
Tell us the property or association, the building type and what you need. Bid invites and plans are welcome. For an active leak, call.
- (408) 770-5992Calling is fastest for an active leak