Northern California
Commercial Roof Inspection and Maintenance in Napa, CA
Napa is the county seat at the south end of the valley, and its flat commercial roofs cover hotels, restaurants and shops downtown, service buildings along Soscol Avenue and production space for the wine trade.
What kinds of commercial buildings are in Napa?
Napa's commercial roofs fall into 3 main groups: hotels, restaurants and retail in downtown and the Oxbow district, service and auto buildings along Soscol Avenue, and wine production and storage buildings at the edges of the city.
The 2014 South Napa earthquake damaged a number of older downtown buildings, and many were repaired or rebuilt with new roofs in the years that followed. Larger industrial roofs south of the city sit mostly in the airport industrial area under county jurisdiction.
- Downtown and the Oxbow district: hotels, restaurants, the Oxbow Public Market area and retail
- Soscol Avenue: auto dealers, service buildings and strip retail
- Jefferson Street and Trancas Street: neighborhood retail and medical offices
- Airport industrial area: wine storage and light industrial buildings south of the city, under county permits
| Building type | Common roof system | Typical age | What Napa does to it |
|---|---|---|---|
| Downtown hotels and restaurants | TPO or PVC near kitchen exhaust | 5 to 25 years old | Grease from kitchen exhaust on the membrane |
| Older downtown buildings | Built-up roof or modified bitumen | 20 to 60 years old | Parapet and flashing cracks |
| Wine storage and production | Spray foam or TPO | 10 to 35 years old | Condensation from temperature-controlled rooms |
What does the Napa climate do to a flat roof?
Napa gives a flat roof about 25 inches of winter rain, hot summer days, cool nights and frequent morning fog from San Pablo Bay.
The daily swing between warm afternoons and cool nights expands and contracts membranes and flashings every day of the dry season. Fog and dew keep roof surfaces wet in the morning, which slows drying around drains and low spots.
How often should commercial roofs in Napa be inspected?
A Napa commercial roof should be inspected at least 1 time a year, and restaurants and hotels with kitchen exhaust often benefit from a second visit to clean grease from the membrane.
Fall is the best single visit because it clears drains before the winter storms. Our commercial roof inspection page explains what each visit covers.
What does a maintenance program cost in Napa?
A maintenance program for a 40,000 square foot hospitality and retail building in Napa costs $4,800 to $6,000 a year on our Monitor program, priced at $0.12 to $0.15 per square foot with a $1,500 minimum.
Monitor fits many smaller Napa retail and office roofs, while restaurants and hotels with heavy kitchen exhaust often step up to Protect. Compare all 3 tiers for Napa on the maintenance programs and pricing page.
Napa figures use our published rates: Monitor $0.12 to $0.15 per square foot a year with a $1,500 annual minimum, Protect $0.22 to $0.25 per square foot a year with a $2,500 annual minimum, Manage $0.40 to $0.45 per square foot a year with a $4,500 annual minimum.
How soon can you scan a roof in Napa?
We can scan a roof in Napa as soon as roof access is confirmed after your request, and a 40,000 square foot hospitality and retail building takes under an hour at roughly 50,000 square feet an hour, with the PE-stamped report delivered within 48 hours.
Downtown Napa buildings often share walls and have limited roof access, so we confirm hatch or ladder access and plan around hotel and restaurant hours. Send the Napa address through our roof scan request form, or see coverage across Northern California.
FAQs
Do Napa restaurant roofs need special maintenance?
Napa restaurant roofs need regular grease cleanup around kitchen exhaust fans, because grease softens many membranes and makes them slippery and brittle.
Were Napa roofs affected by the 2014 earthquake?
Many older Napa buildings had roof and parapet damage in the 2014 earthquake, and a scan helps confirm whether later repairs left any trapped moisture.
Which parts of Napa do you cover?
We cover every flat and low-slope commercial roof in Napa, including Downtown and the Oxbow district, Soscol Avenue, Jefferson Street and Trancas Street and Airport industrial area.
How long does a roof scan take on a hospitality and retail building in Napa?
A roof scan on a 40,000 square foot hospitality and retail building in Napa takes under an hour, because our robotic scan covers roughly 50,000 square feet an hour, and the PE-stamped report follows within 48 hours.
What is the most common commercial roof system in Napa?
TPO or PVC near kitchen exhaust is the most common roof on Napa's downtown hotels and restaurants stock, and those roofs are typically 5 to 25 years old.
Who issues reroof permits in Napa?
Reroof permits in Napa are issued by the City of Napa building department. Parts of downtown Napa lie in historic districts, where visible roof changes such as new parapet caps or equipment screens may need design review.
Which program fits most Napa roofs?
Monitor fits many smaller Napa retail and office roofs, while restaurants and hotels with heavy kitchen exhaust often step up to Protect.
What does a Monitor program cost for a hospitality and retail building in Napa?
A 40,000 square foot hospitality and retail building in Napa costs $4,800 to $6,000 a year on Monitor, at $0.12 to $0.15 per square foot a year with a $1,500 annual minimum.
Do you need to go inside the building to scan a roof in Napa?
No. The scan runs on the roof surface in Napa, so offices, plants and tenants below carry on as normal.
How soon after the scan is the Napa report delivered?
Napa owners receive the PE-stamped report within 48 hours of the scan, with the Moisture Map, Deficiency Map, Roof Condition Score and Estimated Remaining Service Life.
Which roof systems do you scan in Napa?
In Napa we scan TPO, PVC, EPDM, modified bitumen, built-up and spray foam roofs on flat and low-slope commercial buildings.
How do I book a roof scan in Napa?
Send the Napa address through the roof scan request form or call (310) 647-7192.
Schedule a non-destructive roof scan in Napa.
Trusted since 1983 on over 20,000 commercial roofs. California License 435836.