Why commercial roofing is needed in Ripon
Main Street's roofs were built for a town of fourteen houses and have been patched ever since. The two-storey Riddle Building went up in 1884 and the Odd Fellows building in 1886, with the Bank of Ripon following at the north-east corner of Main and Stockton in 1910 and the 50 by 80 foot Markham Hotel in 1912. Flat roofs behind parapets on brick of that age have usually been covered over at least once, and the layer count decides what the next job can be.
Ripon's older neighbourhoods have never flooded from the river, and still take water in a cloudburst. In an October storm that dropped two and a half inches in two hours, manhole covers were forced out, cars stalled with water halfway up their doors and traffic pushed wakes into garages on Acacia and Milgeo avenues, Doak Boulevard and Wilma Avenue. The 1991-2020 normals nearby put January at 2.57 inches for the month, so a roof can meet half of that in an afternoon.
South of Main the buildings are big and what happens on their roofs is industrial. The South Stockton planning district covers 533 acres, 237 of them designated Heavy Industry, and holds most of the city's industrial uses; the Diamond Pet Foods plant at 942 South Stockton Avenue opened in 2013 on a site where a paper mill previously operated. Process exhaust, dust and long perimeters shape those roofs. Past 50 percent or 2,000 square feet altered, whichever is less, cool roof values apply.
At Jack Tone Road the roofs are canopies, kitchens and guest rooms, and none of them can close. State Route 99 carries about 139,000 vehicles a day at the interchange, which was designed for large volumes of traffic and especially trucks, and the corridor has drawn two major auto and truck travel plazas, fast-food restaurants and motels. Fuel canopies shed from a wide deck through very few outlets, restaurant roofs collect exhaust curbs, and a motel roof is worked in sections around occupancy.
Who checks the plans in Ripon depends on what kind of building it is. The City's Building Department at 259 North Wilma Avenue handles plan review, permits and inspections, takes applications through its online Permit Center, and reviews residential and light commercial plans itself while sending heavy commercial and industrial plans out to professional plan check services. Which of those two routes a building takes decides how long the paperwork runs, so it is settled at the survey rather than afterwards.
A 2009 survey of Ripon's redevelopment Focus Area, roughly a tenth of the land inside the city, found one or more signs of structural dilapidation or deterioration on 374 of 644 parcels. On a low-slope building the roof is usually the first of those signs.
Commercial roofing, as delivered in Ripon
Ripon is eleven road miles from the Modesto base, north on Highway 99 across the Stanislaus River. The same record comes back from every building: a marked roof plan, photographs of each detail and a written line-item estimate.
A request sets out the building, its roof and what has shown inside. Site visit scheduled at a time that suits you. Start date set in the written estimate. Whether the plans go to the City or out to a plan check service is settled then, because heavy commercial work takes the longer route.
Drains, scuppers, seams, curbs and penetrations are marked on a roof plan, with wet insulation located by meter reading or core. A Main Street deck and a South Stockton Avenue plant roof are surveyed the same way, and both come back as a drawing with the findings on it.
Repair, recover or replacement is settled under Chapter 15, and the permit comes from the City of Ripon Building Department at 259 North Wilma Avenue through its online Permit Center.
Line items come back with wet-material removal separated from the new surface, and the estimate states whether the price is fixed.
Dates follow the use: trading hours on Main Street, production at the plants, and occupancy at the Jack Tone motels, inside the dry stretch from May to September. Warning lines and skylight protection go up before anyone is near a roof edge.
Outlets are cleared, flashings rebuilt to the manufacturer's instructions, and the stripped material hauled to a permitted facility.
The marked survey, photographs, warranty terms and the inspection record go onto the property file, with the product rating label recorded wherever the energy code applied.
Where commercial roofing is needed in Ripon
Twelve areas, and the roofs sort by era: 1880s brick at the centre, 1960s industry to the south, new fields at Jack Tone.
Downtown Main Street
The historic commercial core, with the Riddle Building of 1884, the Odd Fellows building of 1886, the 1910 Bank of Ripon and the 1912 Markham Hotel. Old flat decks, street parapets and more coverings than anyone expects.
Stockton, Walnut, Locust, Elm, Orange, Palm and Acacia streets south of Main, and the depot area north of Main
Residential blocks of about 1910 to 1920 in Bungalow and Revival forms, with earlier cottages near the depot. The low-slope work here is porch, garage and small commercial roofs, failing at the flashing into old wall material.
South Stockton Avenue industrial district
533 acres, 237 designated Heavy Industry, holding most of the city's industrial uses along with the Central Business District. The Diamond Pet Foods plant at 942 South Stockton opened in 2013 on a former mill site.
Former paper mill by the Stanislaus River
A mill opened near the river in 1965, changed hands twice and closed permanently in 2009 after producing about 35,000 tons of paper a year. Mill-era roofs are wide, heavily penetrated and rarely documented, so the survey starts from scratch.
Stanislaus River corridor and the Vera district
The river forms the southern boundary and the county line, with treatment ponds in the south of the district and levees isolating part of the floodplain. Buildings here discharge roof water onto ground that already handles a lot of it.
Jack Tone Road and the SR 99 highway service corridor
An interchange built for heavy truck volumes, with travel plazas, fast-food restaurants and motels, and about 139,000 vehicles a day on the freeway. Fuel canopies, kitchen exhaust curbs and guest-room roofs, all of them worked in sections.
North Pointe Specific Plan area
310 acres bounded by Mistlin Sports Park, Fulton Avenue, the freeway frontage road and Jack Tone Road, holding food-processing plants, trucking yards and the Goodwin Business Park. Build-out is planned at about 1.7 million square feet of non-residential floor area.
Ripona Planning District
146 acres including 42 designated Urban Core, with the properties south of Milgeo Road built out. In the October downpour flood water closed off Avenue A near Ripona School, which is where roof discharge meets street water.
Wilma Avenue and the North Wilma district
City Hall sits at 259 North Wilma Avenue, and the district includes a 53-acre high school site, a 20-acre elementary school site and 19 acres of community commercial. School roofs are large and worked to a break calendar.
Doak Boulevard and the southern edge
The east-west route along the southern boundary, with a landscaped median through the residential stretch and turn lanes through the industrial districts. At least three storm manholes were forced out of the roadway here in the October storm.
West Main Street and South Jack Tone district
437 acres between West Main Street, the river, Robert Avenue and South Highland Road, mostly low-density residential with commercial recreation. Multifamily buildings on West Main have walkway and carport roofs serving several households each.
2000s subdivisions
Nearly a third of the city's housing was built between 2000 and 2009, in tracts including Chesapeake Landing, Brookline Estates, Montecito Estates, Palm Grove Estates, Poppy Hill Estates, Seven Oaks and Cornerstone. Their common buildings share one installation date.
Commercial roofing sub-services available in Ripon
Questions from Ripon property owners and managers
The City of Ripon Building Department at 259 North Wilma Avenue handles plan review, permits and inspections, and applications go in through its online Permit Center. Residential and light commercial plans are reviewed by the City itself, while heavy commercial and industrial plans are sent out to professional plan check services, so an industrial roof usually takes the longer route. Which route a building takes is established before the application goes in, because it sets the timetable.
Two different kinds of water. The only FEMA 100-year zone in the city runs along the Stanislaus River, but in an October storm that brought two and a half inches in two hours the drainage system was overwhelmed: manhole covers popped on Doak Boulevard, and water reached front doors and garages in the 600 block of Wilma Avenue. A roof discharging at full rate into that adds to it, which is why the outlets are cleared before the season. A storm that lifts the covering rather than overwhelming the drains is a different job: securing the opening is storm-damage board-up, with the repair scoped here.
May to September. The City puts about 85 percent of its rain between October and March, and the nearest normals station records 2.57 inches in January against none in July. That leaves a clear summer window, with a July normal high of 95.0°F making an early start the sensible one. Inspections belong in spring and autumn, and the drains and scuppers are cleared in October.
Only where the roof under it is sound. A new protective coating is allowed over an existing coating, a built-up roof, modified bitumen, spray foam, a metal panel or a single-ply membrane without tearing off. It is not allowed where the roof is water-soaked or deteriorated past being an adequate base, or where two or more coverings are already down. On a plant roof with years of process exhaust on it, the readings decide, not the appearance.
Usually, in sections. The work sits above the rooms and the forecourt rather than inside them, so the limits are access, noise and whatever has to be covered or shut off underneath. A motel roof is programmed floor by floor around occupancy and quiet hours, and a fuel canopy around the hours it must stay open. Warning lines and skylight protection go in first, and nothing is left open overnight.
New low-slope work is designed to a slope of not less than 1/4 unit vertical in 12 units horizontal, with coal-tar built-up roofs at 1/8 in 12. Reroofing is treated differently: where an existing low-slope roof already drains positively and satisfies the structural provisions for ponding and rain loads, a replacement or recover need not be brought up to that minimum, and no new secondary drains or scuppers are required on the same condition.
Commercial roofing near Ripon
