Service Areas · Alameda County

Stone Coated Roof Flashings in Union City

Union City sits between Hayward and Fremont, and much of it was built in groups: a subdivision here, a townhome complex there, whole streets of houses sharing a builder and a roofline.

Union City sits between Hayward and Fremont, and much of it was built in groups: a subdivision here, a townhome complex there, whole streets of houses sharing a builder and a roofline. When roofs are built alike, one mismatched vent is easy to spot. California Stone Coating manufactures stone coated flashings, vents and the Rapid Sleeve in the color of your shingles, and we're based just across Alameda Creek in Fremont.

Alvarado, Decoto and the Union City Roofs Between Them

Union City came together in 1959 out of older communities, with Alvarado and Decoto the best known of them. Those old centers are still on the map, but most of the city filled in afterward with tract homes and planned subdivisions, and more recently with townhomes and apartments near the BART station. On the east side, houses climb toward the hills around Dry Creek. On the west, the land runs flat toward the bay.

On the roof, that history means a lot of houses on a given Union City street share the same layout, with the plumbing vents, water heater flue and exhaust fans sitting in roughly the same spots from one house to the next. Roofs that went on at the same time tend to wear out around the same time, so a single block can see several reroofs within a few years of each other.

Union City HOAs and Rooflines That Have to Match

If your Union City home is in a planned development with a homeowners association, there are probably architectural guidelines covering roof color and materials. Those rules exist to keep a neighborhood looking consistent. A bright galvanized pipe jack, or a vent sprayed a color that's close but not quite, breaks that consistency the day the roof is finished. Spray paint doesn't hold its color evenly after that, either. Two houses reroofed a year apart in the same shingle can end up with pipes that match neither each other nor the roof.

Stone coating fixes the mismatch at the source. The color is part of the coated finish, and it never needs repainting. We match any color, with custom color blending available, so a flashing can follow whatever shingle color your association specifies.

Color and Parts for a Union City Reroof

The color range in our roofer brochure runs from Autumn Blend and Aged Bark through Charcoal Black, Country Gray, Painted Desert, Hunter Green and Silver Birch, and custom blends go past that. The same colors carry across every part we coat.

Townhome buildings show why that matters. Each unit has its own plumbing vents and its own water heater flue, so one long roof over a row of townhomes can carry a whole line of pipes. Painted, they fade at different rates and the roof ends up looking spotted. Stone coated, they hold one color from end to end.

The parts themselves come from three places in our line. The stone coated flashings cover plumbing flashings and assemblies, valley, nosing, roof to wall, saddles and skylights, plus Defender Series™ custom pieces like crickets and saddles. The stone coated vents cover O'Hagin low profile vents, dormer vents, elbow vents, double wall vent pipe, heat pipes and vent caps. For plumber vents, the Rapid Sleeve is a stone coated 10 inch metal sleeve with a long drip cap and a lower flare that seals the vent, with no rubber collar and no spray paint involved.

Our plumbing flashings are sealed water tight at the cone seam, the spot where standard assemblies tend to leak. Everything is long lasting and maintenance free, and every product is backed by a 25 year product warranty.

Just Across Alameda Creek From Union City

We're based in Fremont, on the other side of Alameda Creek, which puts Union City among the closest towns we supply. We make the flashings and vents, and the roofer you hire installs them.

When you're getting ready to reroof, ask your contractor to use California Stone Coating flashings and vents and to match them to the color your HOA calls for. Contact your local contractor for pricing, and call us if you want help working out which parts your roof needs. The homeowners page covers the homeowner side in more depth, and why stone coat lays out the reasons.

Roofers can call (510) 284-2554 to order or ask at their roofing distributor. Turnaround is quick, the parts are universal for standard installations, and nothing special is needed to put them on. We also have pages for Fremont, Hayward and Newark, and the rest are on our service areas page.

Frequently Asked Questions

Yes. We match any color and offer custom color blending, so your roofer can order parts in the same color as the shingle your association requires.

Yes. Plumbing flashings, heat pipes, vent caps, O'Hagin vents and the Rapid Sleeve all come stone coated, so every penetration on the building can match.

Many plumbing flashings and assemblies leak at the seam on the cone, and spray paint can't close it. Ours have that seam sealed by an adhesive that bonds to the metal.

Get in touch

Get Stone Coated Flashings on Your Union City Home

Ask your roofer for California Stone Coating flashings, vents and the Rapid Sleeve, matched to your Union City roof. Roofers can order and homeowners can ask questions at (510) 284-2554.

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