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Owens Corning Roofing in Sunland, CA | Bedrock Roof Repair
We install, repair, and replace Owens Corning roofing systems across Sunland, and we’ve worked with their full lineup on homes from the 91040 flats to the hillside tracts above Big Tujunga Wash. What makes our Owens Corning work different here is that we spec every roof for canyon wind and ember exposure, not just heat. If you’re researching Owens Corning service in Sunland, call (833) 589-7850 for a straight answer and a free estimate.

We’re an independent roofing contractor, not an Owens Corning dealer or authorized installer. We buy and install their products the same way any licensed roofer does. You can read more about our Owens Corning sales & service experience, or keep reading to see how we approach the brand specifically for Sunland’s conditions.
Why Sunland Residents Choose Us for Owens Corning Service
We’ve torn off and re-installed Owens Corning systems across the Sunland-Tujunga corridor, from builder-grade three-tab on 1950s ranch tracts to Duration and Oakridge architectural lines on hillside rebuilds. We also provide Owens Corning service in Tujunga itself. Alan Cofield, our owner, came up through the building trades program at Cypress College and spent the better part of two decades on Orange County roofs before bringing that same diagnostic approach here. He kicks a shingle, reads the sealant strip, checks the fastening pattern, and tells you what the roof actually needs. Repair, replacement, or nothing yet.
Why do Sunland homeowners call us for Owens Corning work? Three reasons. We know which Owens Corning lines hold up under Santa Ana uplift and which don’t. We stock field shingles, ridge caps, and underlayment locally for faster turnaround. And we’re honest about what does and doesn’t need replacing. Want the long version? Our Sunland service area page goes deeper on how we work in this corridor.
Styles & brands we work with






Common Owens Corning Roofing Problems We Solve in Sunland
These are the failure modes we see most on Owens Corning roofs in Sunland. Each one ties back to a specific local condition, not generic roofing wear.
- Lifted and torn ridge caps on west-facing slopes above Big Tujunga Wash. After a Santa Ana event, the sealant strips on ridge caps get pried up and never fully re-bond. Wind catches the lifted edge on the next blow and tears the cap clean off. We replace caps with proper adhesion and correct fastening for the wind zone.
- Shingle tabs sheared off due to high-nailing or four-fastener patterns. Older three-tab Owens Corning fields, especially on low-pitch ranch roofs, were often nailed too high. When the nail sits above the sealant strip, the tab never locks down. Canyon gusts slip under and rip tabs free. We re-nail to current wind spec and replace the damaged field.
- Granule loss and bare mat on south- and west-facing planes. Sunland’s UV runs hotter than the L.A. basin in summer. The sun bakes out the asphalt on exposed slopes, granule comes off, and bare mat is all that’s left. Wind catches bare mat fast. If the mat is still sound, a targeted repair works. If it’s too far gone, we say so.
- Dried and torn underlayment under vents and patio-cover tie-ins. WeatherLock and old felt underlayment crack and separate at penetration points after years of heat and dry wind. Ember-blown openings at attic vents and ridge leaks show up together after fire-season wind events. We replace the underlayment section and re-seal the penetration.
- Cracked and lifted vent boots and covers. Sunland’s Santa Ana winds peel off plastic vent covers and crack aging vent boots. The result is attic intrusion from both rain and embers. We replace boots and covers with components rated for this wind and fire zone.
If you’ve got a leak, missing shingles, or a lifted ridge cap after a wind event, call (833) 589-7850. We’ll diagnose the problem before we recommend anything.
Owens Corning Service in Sunland: What Local Conditions Mean for Your Equipment
Sunland’s rooftops sit at the mouth of Big Tujunga Wash, where Santa Ana winds funnel through the canyon gaps between the Verdugo Mountains and the San Gabriel foothills. The local fire department enforces Class A assembly and ember-resistant venting on reroofs in the 91040 hillside tracts. This means an Owens Corning job in Sunland is judged on wind uplift and ember intrusion, not heat. That’s a different spec than contractors use on flatland tract roofs in, say, Pacoima or Burbank Owens Corning service areas.
What does that mean for Owens Corning products specifically? Duration FLEX’s polymer-modified asphalt gives it better wind resistance than standard Duration, which matters on a west-facing slope above the wash. Oakridge holds up fine on sheltered north slopes but needs correct nailing specs on windward planes. And Supreme three-tab, which is still on plenty of original Sunland ranchers, was never designed for the gusts this canyon can throw. We spec the right Owens Corning line for each slope, not just the roof as a whole.
Owens Corning Models & Products We Service in Sunland
We service and install these Owens Corning lines across Sunland:
- Owens Corning Supreme (3-tab) – Common on 1950s-60s ranch homes. We patch, re-nail, or tear off as the condition dictates.
- Owens Corning Oakridge architectural shingles – A step up in weight and wind performance. We see these on later additions and some hillside builds.
- Owens Corning Duration & Duration FLEX – Architectural lines with stronger wind ratings. Duration FLEX is our go-to recommendation for exposed west-facing slopes above the wash.
- Owens Corning WeatherLock synthetic underlayment – We use WeatherLock as the primary underlayment on any Owens Corning reroof in Sunland, especially under ember-resistant vent installations.
We use genuine Owens Corning shingles, ridge caps, and WeatherLock for anything in the shingle field. But flashings, vents, and fasteners aren’t made by Owens Corning, so we don’t pretend they are. We spec components rated for Sunland’s wind and fire zone. Anything we commonly stock is on hand for faster turnaround in Sunland; anything else we order the same week.

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Pricing depends on scope, slope access, and which Owens Corning product you’re working with. Here’s a rough breakdown for common Sunland repairs:
| Service | Typical Range (Sunland) |
|---|---|
| Shingle tab repair or ridge cap replacement | $250 – $500 |
| Flashing repair or replacement (chimney, wall, valley) | $350 – $800 |
| Vent boot replacement with ember-resistant cover | $200 – $400 |
| Full slope tear-off and re-shingle (Owens Corning field + WeatherLock) | $3,500 – $8,000 depending on slope size and pitch |
| Complete roof replacement (Oakridge or Duration, Class A assembly) | $14,000 – $28,000 depending on square footage and deck condition |
Your free estimate includes a full slope-by-slope inspection, photos of what we find, and a written line-item quote. Call (833) 589-7850 to schedule one.
Serving Sunland, CA — Our Local Coverage Area
We’re based in the Sunland area and know this community well, and we also handle Owens Corning in Shadow Hills. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Owens Corning Roofing in Sunland
Duration FLEX is the better choice for west-facing slopes above the wash. The polymer-modified asphalt resists the wind-uplift signature we see in that corridor, where Santa Ana winds peel shingles off windward planes. Standard Duration works on sheltered slopes but doesn’t carry the same wind rating on exposed faces. Call (833) 589-7850 and we’ll walk your roof slope by slope before recommending a line.
The sealant strips on ridge caps get pried up during a Santa Ana event and never fully re-bond. Once the seal is broken, wind catches the free edge on the next blow. The fix is proper removal, new caps, and correct nail placement, not just pressing the old cap back down. We see this pattern repeatedly on west-facing slopes above Big Tujunga Wash.
Yes. The local fire department enforces Class A assembly and ember-resistant venting on reroofs in Sunland’s high-fire-severity zones. Owens Corning shingles can meet Class A fire rating, but the attic vents are a separate component. We follow the same approach for Owens Corning repair in La Crescenta-Montrose. We install ember-resistant vent covers and re-seal the underlayment around every penetration so the whole assembly passes inspection.
A tear-off on these older Sunland ranchers means stripping the shingle layer, removing the original tar-and-gravel, inspecting the decking for rot, then laying new WeatherLock underlayment and an Owens Corning shingle field. The tar-and-gravel removal adds labor and disposal cost. We inspect the deck before quoting, because soft spots change the spec. Call (833) 589-7850 for a free estimate.
Yes. If the shingle field around the valley or flashing is sound, we patch and re-flash. A leak at a valley or flashing point doesn’t automatically mean a full tear-off. We’ll tell you when the repair will last and when the surrounding field is too far gone to warranty. Estimates are free; call (833) 589-7850.
Service Areas Near Sunland
Our crews work the Sunland-Tujunga corridor and surrounding edges of the San Fernando Valley and foothills. We also cover Owens Corning service in Good Hope and Owens Corning service in March Air Force Base for clients with properties elsewhere in the region.
Book Your Owens Corning Service in Sunland Today
The roof tells you what went wrong. You just have to know how to read it. Call (833) 589-7850 to schedule a free Owens Corning roof inspection in Sunland, and we’ll tell you what your roof actually needs.
Written by Alan Cofield, Owner at Bedrock Roof Repair, serving Sunland and the Sunland-Tujunga corridor.