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Owens Corning Roofing: The San Francisco Owner’s Guide
We stock and install Owens Corning roofing systems and repair parts across San Francisco, with most partial repairs running $470 to $2,125 and full replacements between $9,440 and $23,600 depending on roof size and pitch. Homeowners usually find us after a leak shows up on a bedroom ceiling or a section of shingles fails after a winter storm. Sometimes it’s granule loss clogging a gutter, sometimes it’s a visible tear after wind lifted a shingle line on the bay side of the house. Whatever the trigger, the fix starts with identifying exactly which Owens Corning product is on your roof and what failed, so you get a written price before anything gets torn off.
Which Owens Corning Models This Applies To
Owens Corning runs three main asphalt shingle lines we see on San Francisco roofs: the entry-level Supreme, the mid-range Oakridge, and the heavy Duration series, including Duration STORM and Duration FLEX. The Duration line uses the SureNail fabric strip, which matters when you’re matching a partial repair because the nail zone width and exposure differ from Supreme or Oakridge. The compatibility gotcha: you can’t mix Duration shingles with Supreme shingles on the same slope without visible seam lines and warranty complications, so any repair on a Duration roof uses Duration shingles. If you’re not sure which line is on your roof, check the underside of a loose shingle tab for the Owens Corning ink-jet code, or look at the bundle wrapper if you still have one in the garage or crawl space. The label shows the product name and the color code, like Driftwood, Onyx Black, or Estate Gray, and that color code is what we match when we order the replacement bundle.
OEM versus aftermarket: for Owens Corning shingles specifically, we install genuine Owens Corning products on any repair that touches the slope itself. Aftermarket underlayment and flashing from other manufacturers is standard practice and doesn’t affect the shingle warranty, but the shingle itself stays Owens Corning so the warranty language stays clean. Bradford Remodeling Co San Francisco is an independent service provider and not affiliated with Owens Corning, but our installs follow the manufacturer’s nailing pattern and exposure specs so the material warranty holds.
Styles & brands we work with
Signs Your Owens Corning Roofing Is Failing
- Granule loss in the gutters. If your downspout is running gray or brown water after a rain, the shingle’s ceramic granule layer is shedding. On San Francisco roofs, fog and salt air accelerate this, and once the asphalt substrate is exposed, UV breaks it down fast.
- Curling or cupping shingle edges. This means the shingle’s mat is drying out and pulling at the corners. On south-facing slopes in the Outer Sunset and the Mission, repeated hot-cold cycles through the fog season make this show up years earlier than the manufacturer’s nominal lifespan.
- A leak that appears after wind-driven rain. San Francisco’s prevailing west wind pushes water uphill under shingle laps in a way a standard vertical leak won’t. If the leak only shows up during a storm with real wind, you’re probably looking at a lifted shingle line or failed starter strip, not a plumbing issue.
- Missing shingles after a storm. A shingle that blows off usually means the nail zone was overdriven or the sealant strip never fully bonded. On a Duration roof, the SureNail strip makes this less common, but an older Supreme roof with hand-nailed shingles will shed shingles every few years once the sealant hardens.
- Soft spots you can feel underfoot. If any section of the roof deck feels spongy when you walk it, the plywood or OSB substrate has absorbed moisture, and the shingles above it are being held on by nails with nothing solid to grip. That’s a deck replacement, not a shingle patch, and ignoring it means a bigger section rots every winter.
See the difference
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After
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AfterReplacement Cost & What’s Included
Here’s what Owens Corning roofing work actually costs in San Francisco as of this year, installed and with the warranty in writing:
- Partial repair (single leak, flashing, or a few shingles): $470 – $825
- Multi-section repair (ridge, starter strip, pipe boots, larger shingle area): $825 – $2,125
- Full roof replacement with Owens Corning Duration shingles: $9,440 – $23,600, depending on square footage, tear-off, deck repairs, and roof pitch
The spread on a full replacement comes down to three things: how many squares of roofing are on the house, whether the deck under the old shingles needs replacement, and how steep or cut-up the roof is. A tight two-story Edwardian in Noe Valley runs higher on labor than a simple ranch in the Sunset. Every quote from us is a written line-item price before work starts, and that number doesn’t move at the door. The work is covered by our 365-Day Done Right Promise: if anything fails inside the first year, we come back and correct it at no charge. We pull permits where San Francisco requires them, and the inspection sign-off is in your hands with the written guarantee at job close.
DIY or Call Us?
There’s a straight answer here: walking a roof in San Francisco is dangerous work, and the failure mode that brings most Owens Corning owners to this page, a leak that’s already wet the deck or the ceiling, is not something you fix from a ladder with a tube of roof cement. That said, you can safely check a few things from the ground: look for missing shingles against the skyline, check whether your gutters are full of granules, and note which direction the wind was blowing when the leak appeared. What you shouldn’t do is climb a two-story roof on a fog-wet morning to peel back shingles, because the same slope that’s leaking is the one that’s slick, and a fall from a second-story eave is a hospital trip, not a weekend project. If the leak is active, call us at (831) 610-5598. We’ll get eyes on it, give you a written repair price, and if it’s a simple shingle match we can usually have it squared away the same day.
FAQs
In San Francisco’s fog, salt air, and UV mix, you’ll realistically get 18 to 25 years from Owens Corning Duration shingles and 12 to 18 years from the Supreme line, which is several years less than the same products in a drier inland climate. The fog cycle is the big one: shingles stay damp overnight, bake off in the afternoon, and that daily movement ages the asphalt mat faster than constant sun does. If your roof crosses the 15-year mark and you’re seeing granule loss, a written inspection now costs less than a deck replacement later, call (831) 610-5598 and we’ll give you a straight assessment.
Yes, as long as the shingles in the damaged section can still be matched by product line and color, and the deck underneath is still sound. In San Francisco most partial repairs run $470 to $2,125, and they make sense when the failure is localized, like a pipe boot, a lifted shingle line, or a valley flashing that pulled loose. If the granule loss is widespread or the deck is soft, a patch just shifts the leak somewhere else, and we’ll tell you that plainly rather than sell a repair that won’t hold. Call us for a straight reading on which side of that line your roof is on.
A partial repair, replacing shingles, flashing, or a pipe boot, takes our crew between two and five hours on-site. A full tear-off and re-roof in San Francisco typically runs three to five working days, depending on deck repairs and weather windows, and we schedule around the fog so the underlayment gets a dry set before shingles go down. You’ll have the written scope and timeline before we start, and the 365-Day Done Right Promise in your hand at close-out, call (831) 610-5598 for a free estimate.
We keep the common Owens Corning parts on the truck when we roll into San Francisco neighborhoods, including starter strip, ridge cap, pipe boots, and leak barrier, plus a working stock of the most common Duration colors we see on roofs around the city. If your roof’s color code is less common, like a special order Estate Gray or a discontinued Supreme tone, we order that bundle from our local supplier and it’s typically in hand within a few business days, and we’ll tell you the exact lead time in your written estimate before you commit to anything.
Straight number, real scope, no surprises at close-out. If you’ve got an Owens Corning roof that’s failing or just starting to show age, call (831) 610-5598 and Curtis Lane or one of our project leads will walk through what you’re seeing, what it’ll cost, and whether it’s a repair or a replacement. The estimate’s free, it’s in writing, and it won’t change when the crew rolls up.
Written by Curtis Lane, Owner, Bradford Remodeling Co – San Francisco, CA at Bradford Remodeling Co San Francisco, serving San Francisco and nearby areas.
