Stone Coated Roof Flashings for San Leandro, CA Homes

Tear off a house in Washington Manor and the penetrations tell you the history of the place. There is the main plumbing stack, and often a second one from a bathroom somebody added later. There may be a double wall flue left over from a water heater or a wall furnace, a vent cap over an exhaust fan, maybe a heat pipe nobody in the family remembers. On the prewar houses in Broadmoor and Estudillo Estates the list gets longer and stranger, because those homes have been opened up and remodeled more than once.

Nearly all of that metal is plain galvanized. Put it back on a brand new roof and it looks exactly like what it is: a bright pipe standing up in a clean field of shingles. The standard fix is a spray can. For a few weeks it passes. Then the paint dulls and chalks, the edges lift, and the overspray on the granules around the base turns into a smudge that never matched anything. By the second summer the homeowner has stopped noticing the new roof and started noticing the pipes.

Paint also does nothing for the leak nobody sees coming. Plumbing flashings and assemblies tend to leak at the seam on the cone, and no amount of paint will close that seam. We seal it with an adhesive that bonds with the metal, so what goes onto a San Leandro roof is water tight at the seam and better looking besides.

San Leandro runs right down to the bay. The homes around the Marina and in Heron Bay sit close to the water, and even up in the Bay-O-Vista hills the air coming in off the bay carries moisture for much of the year, with summer fog that usually burns off by midday. Bare galvanized in that air picks up white rust first and the red kind later. Painted metal holds off a little longer, right up until the paint cracks and the damp gets underneath it.

Stone coated metal does not lean on a paint film for protection. The finish is rust, rot, algae and fire resistant, and it is meant to be left alone: nothing to scrape, nothing to prime, no repainting when the house goes on the market. Our own materials put it as "No UV deterioration or rust ever again!" and a roof a short walk from the shoreline is where that line earns its keep. Every piece is backed by a limited 25 year product warranty, salt air or not.

One San Leandro block can hold a 1920s cottage, a 1950s ranch and a recent rebuild, each under a different roof color. Because we match any color and offer custom color blending, the vent pipe on a charcoal roof reads charcoal and the one on a warm brown roof reads brown. The standard list runs from Charcoal Black and Shadow Gray through Chestnut, Aged Bark and Mission Brown. If your shingle is something else, your roofer can send us the color and we will blend to it.

For the plumbing vent in particular, the Rapid Sleeve is the cleanest way to finish an older house. It is a stone coated 10 inch metal sleeve with an elongated drip cap and a lower flare that seals any plumber vent, and it slides right over the stack. That one part retires the rubber collar, the spray paint and the broken bead of sealant in a single move. Everything else we make, from roof to wall and valley pieces to dormer vents and vent caps, is laid out on the stone coated flashings and stone coated vents pages, and the longer case for the finish lives on why stone coat.

California Stone Coating makes the product. Your roofer puts it on the roof. That split is simple, and it decides how you get our flashings onto a San Leandro house.

As a homeowner, raise it before the reroof bid is signed. Ask your roofer to include stone coated flashings and vents in the job, and contact your local contractor for pricing, because the number comes from them and not from us. Our homeowners page walks through the questions worth asking at that stage. You are also welcome to call us directly with product questions about your San Leandro house.

Roofers working San Leandro, from the Oakland line down toward San Lorenzo and Hayward, can call us to order or ask your roofing distributor. The parts are universal for all standard types of installations and need no special tools, so they go on exactly like the galvanized pieces they replace, and a quick turnaround keeps them from holding up a tear off. The contractors page has the rest, and our service areas list covers Oakland and the other East Bay towns if your work takes you there too.