Mountain View · Santa Clara County
Commercial Roofing in Mountain View: R&D, Office, Multifamily and HOA Roofs
Apartment, R&D, office and HOA roofs across Mountain View.
- Free roof condition report before the rains
- Good, better and best bid options
- Certificate of insurance within 24 hours of request
A city of apartments and R&D buildings
The California Department of Finance counts 21,133 of Mountain View's 41,661 housing units in 5+ unit buildings, about 51% (21,133 ÷ 41,661), against 10,977 single-detached homes, in a city of 88,533 (January 1, 2026). Another 5,393 units are single-attached, mostly townhomes.
R&D and office
Kidder Mathews counts 7,755,030 square feet of R&D space in Mountain View, at 14.5% total vacancy and 16.1% availability, with year-to-date direct net absorption of −201,746 square feet. Its average asking rent, $4.17 per square foot NNN, is the second highest Kidder lists, after Palo Alto's $5.05 (Silicon Valley R&D, Q3 2026).
With rents that high and space on the market, owners keep buildings tenant-ready, and roof condition comes up at lease-up and sale. See roof inspections and condition reports.
Illustrative image, not a completed project.
Mountain View permits: commercial goes the standard route
- Small repairs: the City's FAQ lists roofing repairs under 100 square feet (one roofing square) among work that doesn't need a building permit.
- The fast reroof permit isn't for commercial: Mountain View's streamlined reroofing permit covers existing single-family homes and duplexes only, and the City's ePermits site states that no commercial applications are accepted there (City of Mountain View ePermits).
- So commercial and multifamily re-roofs go through a standard building permit application with the City.
Next door, Sunnyvale requires a permit once more than 100 square feet of roof covering is installed, repaired or replaced (City of Sunnyvale).
Mountain View weather and Title 24
At Moffett Federal Airfield, on the city's eastern edge, September is the warmest month, with a 77.7°F average high, so roofs keep baking well after most of the Bay Area cools. The station averages 13.45 inches of rain a year, February wettest at 2.90 inches. The Palo Alto station, just northwest, averages 15.12 inches (NOAA NCEI, 1991–2020 normals).
Late heat followed by winter rain is hard on sealants and seams, so a fall check of drains and flashings is worth scheduling. See roof maintenance programs.
Title 24 on nonresidential re-roofs
Mountain View ZIP codes 94040, 94041 and 94043 are in climate zone 4 (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 Mountain View
Apartment flat roofs
Ponding and drain problems on low-slope apartment roofs. See commercial roof repair.
HVAC curb and penetration leaks
On R&D and office buildings carrying rooftop units.
Aging single-ply seams
Older TPO and other single-ply roofs.
Townhome flat sections
Low-slope roofs over garages and corridors at HOA communities.
Who we work with in Mountain View
Property managers
A line-item scope to forward to the owner, and a COI within 24 hours of request.
Facility teams
Condition reports and repair-or-replace options for R&D and office buildings.
HOA boards
Board-ready good, better and best options for townhome and condo communities.
Nearby
Sunnyvale: east, sharing the Moffett weather station and a permit line at 100 square feet of roof covering.
Santa Clara: further east, with tilt-up and flex buildings that combine office, warehouse and process space.
San Jose: southeast, where a permit is needed once 25% of the roof is replaced or repaired.
The rest of the county: commercial roofing in Santa Clara County.
Frequently Asked Questions
For anything beyond a small patch, yes. The City lists roofing repairs under 100 square feet, one roofing square, as exempt from a building permit. Larger repairs and re-roofs need one, and commercial applications can't use the City's ePermits site or its fast single-family reroof permit.
Commercial Roofing Inc. repairs, inspects, coats and replaces roofs on Mountain View apartment, R&D, office and HOA buildings. We document leak sources with photos and send a line-item scope you can forward to the owner or board. Call (408) 770-5992 or request a bid.
Climate zone 4, for ZIP codes 94040, 94041 and 94043, 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.
About 13.5 inches a year at Moffett Federal Airfield, per NOAA's 1991–2020 normals, with February the wettest month. Palo Alto, just northwest, averages about 15.1 inches. September is the hottest month at Moffett, so roofs bake late into the year and then take the winter rain.
No. Mountain View's streamlined reroofing permit is only for existing single-family homes and duplexes, and the City's ePermits site doesn't accept commercial applications. Apartment, condo and commercial re-roofs go through a standard building permit application with the City.
Let's get started
Request a bid for a Mountain View building
Tell us the property, 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