Central Valley
Commercial Roof Inspection and Maintenance in Stanislaus County
Stanislaus County has 9 cities, with Modesto at its center, and a commercial base of wineries, food and dairy plants, and fast-growing distribution parks along Interstate 5. Our scan helps owners of old canning-era buildings and new warehouses alike see where water is hiding.
What kinds of commercial buildings are in Stanislaus County?
Stanislaus County flat roofs fall into 3 eras: older food processing and canning buildings in Modesto, Turlock and Riverbank, newer distribution centers in Patterson and at the Crows Landing industrial park, and medical and retail buildings across Modesto.
Modesto is home to one of the largest wine producers in the world, and the county has processed fruit, nuts and dairy for more than a century.
Patterson grew into a distribution hub along Interstate 5, with several warehouses over 1 million square feet. Turlock adds dairy and cheese processing, and Riverbank keeps an industrial complex on the site of a former army ammunition plant.
- Modesto industrial areas: food processing, wine production and warehouses along Highway 99 and Highway 132
- Patterson and the Interstate 5 corridor: large distribution centers and logistics buildings
- Crows Landing Industrial Business Park: new industrial development on a former naval air field west of Highway 33
- Turlock: dairy, cheese and food processing plants plus a university campus
- Riverbank and Oakdale: industrial complex, food plants and retail
| Building type | Common roof system | Typical age | What Stanislaus County does to it |
|---|---|---|---|
| Older food processing or canning building | Built-up roof with gravel | 40 to 70 years | Many layers and hidden wet insulation |
| Patterson distribution center | White TPO | 1 to 15 years | Huge drain areas and warranty terms |
| Cheese or dairy plant | PVC or spray foam | 10 to 30 years | Steam, cold rooms and washdown |
| Winery production building | Spray foam or TPO | 15 to 35 years | Cooling load and tank vents |
| Modesto medical office | Modified bitumen | 15 to 30 years | HVAC curbs and summer heat |
What does the Stanislaus County climate do to a flat roof?
Stanislaus County summers stay in the 90s for weeks, and winter tule fog and about 13 inches of rain follow, so roofs swing between baking and soaking each year.
The heat ages coatings and opens seams on older roofs, and fog slows drying after storms. Dust from orchards and fields also builds up in drains through harvest season.
How often should commercial roofs in Stanislaus County be inspected?
Commercial roofs in Stanislaus County should be inspected 2 times a year, and older food plants with several roof layers should be scanned every 1 to 2 years.
Layered roofs can look dry on top while the bottom layers hold water for years. Our commercial roof inspection page explains what each visit covers.
What does a maintenance program cost in Stanislaus County?
A maintenance program for a 200,000 square foot food processing plant in Stanislaus County costs $80,000 to $90,000 a year on our Manage program, priced at $0.40 to $0.45 per square foot with a $4,500 minimum.
Manage fits many Stanislaus County food processors, because older plants often carry several roofs nearing replacement in the same 5 to 10 year window. Distribution owners with young roofs usually choose Protect to keep warranties in force. Compare all 3 tiers for Stanislaus County on the maintenance programs and pricing page.
Stanislaus County 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 Stanislaus County?
We can scan a roof in Stanislaus County as soon as roof access is confirmed after your request, and a 200,000 square foot food processing plant takes about 4 hours at roughly 50,000 square feet an hour, with the PE-stamped report delivered within 48 hours.
A 200,000 square foot plant can be scanned in about 4 hours, and we plan around peak harvest and canning weeks. Book your Stanislaus County scan through our roof scan request form, or compare counties on the service areas page.
Which Stanislaus County cities and business districts do you serve?
We serve all of Stanislaus County, and the 8 cities and districts below are where most of its flat commercial roofs sit.
- Modesto: the county seat, with food processing, wine production, medical and retail buildings
- Turlock: dairy and food processing plants, retail and a university campus
- Patterson: large distribution centers along Interstate 5
- Ceres: food processing and light industrial buildings
- Riverbank: an industrial complex and food plants
- Oakdale: food processing, retail and service buildings
- Newman and Hughson: agricultural processing and storage
- Salida and Crows Landing: unincorporated distribution and industrial development
Stanislaus County has 9 cities with their own building departments, and unincorporated areas such as Salida, Keyes, Denair and Crows Landing go through the Stanislaus County Department of Planning and Community Development. Reroofs must meet Title 24 cool roof rules.
FAQs
Do old canning buildings in Modesto have hidden moisture?
Many do. Several roof layers built up over decades can trap water, and only a scan through the layers shows how much insulation is still dry.
Why does Manage fit older Stanislaus County food plants?
Older plants often have several roofs reaching the end of their life at once. Manage adds capital planning so replacements are spread across budget years.
Can you scan a 1 million square foot warehouse in Patterson?
Yes. At about 50,000 square feet an hour, a 1 million square foot roof takes roughly 20 hours of scanning, usually over 2 to 3 days.
Do you cover the Crows Landing industrial park?
Yes, we scan new and existing buildings at Crows Landing as well as the distribution parks in Patterson.
Can you scan a Turlock cheese plant while it runs?
Yes. The scan is done from above, so production continues. We plan around refrigeration units and steam vents.
What would Manage cost for a 200,000 square foot food plant?
At $0.40 to $0.45 per square foot, a 200,000 square foot roof costs $80,000 to $90,000 a year on Manage.
Who permits roof work in Salida or Keyes?
Salida, Keyes, Denair and Crows Landing are unincorporated, so the Stanislaus County Department of Planning and Community Development handles roof permits there.
Does orchard dust affect roofs near Modesto?
Yes. Harvest dust settles in drains and gutters and holds water on the roof, so drains should be cleared after harvest.
How long does a roof scan take on a food processing plant in Stanislaus County?
A roof scan on a 200,000 square foot food processing plant in Stanislaus County takes about 4 hours at roughly 50,000 square feet an hour, and the PE-stamped report follows within 48 hours.
Which Stanislaus County cities do you cover?
We cover flat and low-slope commercial roofs in every part of Stanislaus County, including Modesto, Turlock, Patterson, Ceres, Riverbank, Oakdale, Newman and Hughson and Salida and Crows Landing.
Schedule a non-destructive roof scan anywhere in Stanislaus County.
Trusted since 1983 on over 20,000 commercial roofs. California License 435836.