Owens Corning
Architectural shingles
Metal roofing
Tile roofing
GAF
Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Owens Corning Roofing in San Fernando, CA | Van Nuys Roofing Co
We provide independent Owens Corning in North Hills and across San Fernando, and the one thing that separates our work here from a generic roofer is this: we know what’s underneath the tile. Most of the original roofs in the 91340 flats were never built over plywood. They sit on skip sheathing, and the Owens Corning underlayment over that has been baking in Valley heat for decades. If your roof leaks but the tile looks fine, that’s usually the story. Call (866) 321-6172 and we’ll tell you straight.
Van Nuys Roofing Co is not authorized, sponsored, or endorsed by Owens Corning. We’re an independent contractor that installs and services their systems daily, and our Owens Corning sales & service experience runs deep across the northeast Valley, from San Fernando to Burbank and everywhere between.
Why San Fernando Residents Choose Us for Owens Corning Service
Rick Dominguez, our owner, grew up off Sepulveda Boulevard a few blocks from the old Van Nuys Municipal Airport and offers Owens Corning service in Van Nuys, and he’s been on Valley rooftops for the better part of two decades. He’s known for flat roof work and for being straight with people. That matters when you’re deciding whether your Owens Corning underlayment needs a full tear-off or just targeted repair. We inspect first, recommend second. If it doesn’t need replacing, we’re not going to tell you it does.
We carry genuine Owens Corning shingles, underlayment, and accessory components, so your system warranty stays intact. For flashing and vent boots where the OEM part is generic, we use quality aftermarket fittings that do the job without inflating the invoice. Homeowners across San Fernando’s 91340 and 91341 ZIP codes call us for San Fernando Roof Repair because we give them the material choice and the honest condition assessment before any money changes hands.
Styles & brands we work with
Common Owens Corning Roofing Problems We Solve in San Fernando
- Heat-aged asphalt on Oakridge and Duration shingles. South and west slopes in San Fernando take direct sun from late morning to sunset. Granule loss accelerates, sealant strips bake dry, and wind-driven rain finds lifted tabs. We see it on nearly every original shingle roof in the 91340 tract homes.
- Failed shingle-to-flashing seals at valleys and penetrations. When the original install leaned on sealant instead of proper step or counter-flashing, the first intense Valley rain event exposes it. Water finds the gap at the valley and follows the truss to the ceiling.
- Underlayment breakdown on tile roofs over skip sheathing. The tile looks intact from the curb. The Owens Corning membrane beneath it, laid four or five decades ago, is brittle and torn. This is the single most common hidden failure we find in San Fernando.
- Fastener pull-out and soft fascia at eaves. Heat and dry rot compromise the original board ends. When we re-roof over skip sheathing, we often find fasteners that never bit into solid wood in the first place.
- Lifted tabs on low-pitch roofs after wind events. San Fernando sits in a wind-prone stretch of the northeast Valley. When the sealant strip on an older Owens Corning shingle lets go, the tab lifts, catches the next gust, and tears.
Owens Corning Service in San Fernando: What Local Conditions Mean for Your Roof
In the 91340 flats, most tile roofs were originally laid over 1x skip sheathing rather than plywood. That gap between boards is where the heat does its worst work. Summer temperatures in the high 90s to 100s bake the underlayment from above and below, and by the time the first real winter rain arrives, the membrane has turned to something closer to parchment than waterproofing. An Owens Corning underlayment replacement here often means adding a solid deck layer before the new membrane goes down, a step that doesn’t even come up on newer Valley tract roofs with plywood decks. If you’re in San Fernando and your roof is original to the house, plan for that deck work. It’s the honest answer, and it’s what keeps the new underlayment from failing the same way the old one did.
On a stucco bungalow off Maclay Avenue in 91340, we pulled a homeowner’s clay barrel tile and found the Owens Corning underlayment beneath it cracked like old leather. The tile looked fine from the street. The ceiling told a different story after the first winter storm. We laid a solid deck over the original skip sheathing, installed a fresh Owens Corning underlayment system, and reset the original tile to keep the Spanish-revival look intact. That’s the Northridge Owens Corning service standard we bring to San Fernando.
Owens Corning Models & Products We Service in San Fernando
We install and service the full Owens Corning roofing line that makes sense for San Fernando homes. Oakridge architectural shingles are the workhorse for low-pitch tract roofs. Duration and Duration Designer give you the heavier, more wind-resistant option for exposed slopes. Supreme shingles remain a straightforward choice for budget-conscious repairs. For underlayment, we stock Owens Corning WeatherLock and ProArmor systems, both suited to the heat-cycled decks and tile roofs we see across San Fernando and the San Fernando service area.
On the parts side, we install genuine Owens Corning shingles, underlayment, and accessories so the manufacturer warranty stays valid. Where the OEM component is generic, flashing, vent boots, pipe collars, we use quality aftermarket parts that match the spec without the brand markup.
See the difference
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After
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AfterOwens Corning Service Pricing in San Fernando
Here’s what shapes the price of Owens Corning work in San Fernando:
- Tile underlayment replacement: $8 to $15 per square foot, depending on whether we need to add a solid deck over skip sheathing, which most 91340 original roofs do.
- Architectural shingle replacement: $6 to $10 per square foot for a full tear-off and Owens Corning Oakridge or Duration install.
- Flashing and valley repair: $450 to $1,200 per area, based on how much of the existing flashing we need to cut out and replace.
- Standalone roof inspection: $250 on average, waived when you move forward with the repair or replacement.
Every estimate includes a written line-item breakdown. You’ll see exactly what the deck, membrane, shingle, and labor cost, no vague lump sums. Call (866) 321-6172 to schedule your free estimate.
Serving San Fernando, CA — Our Local Coverage Area
We’re based in the San Fernando area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Owens Corning Roofing in San Fernando
Almost always the underlayment. Tile is cosmetic once it’s in place; the membrane beneath it does the actual waterproofing. In San Fernando’s heat, that underlayment fails decades before the visible tile does. We inspect the membrane directly by lifting tile sections, and we’ll show you photos of what we find. Call (866) 321-6172 for an inspection.
No, and we won’t pretend otherwise. Skip sheathing needs a solid deck layer before shingles go down. The gaps between boards leave the shingle unsupported, and fasteners miss solid wood. We add the deck, then install the Owens Corning system to spec, so the warranty actually applies.
Duration shingles have held up best on the south and west slopes we service across San Fernando. The heavier mat and stronger sealant strip resist the granule loss and tab lifting we see on older Oakridge and Supreme roofs after a few 100-degree summers. That said, any shingle lasts longer when the underlayment and ventilation are done right underneath it.
Yes. We pull the tile, remove the old Owens Corning or other underlayment, add a solid deck if needed, install fresh underlayment, and reset the original tile. Most San Fernando homeowners keep their tile; it’s usually still in good shape and matches the neighborhood’s Spanish-revival character. Call (866) 321-6172 and we’ll walk your roof with you.
Because sealant, not metal, was doing the waterproofing. Valley rain events in San Fernando are rare but intense, and sealant that’s been baked by summer sun separates the first time real water hits it. We replace sealant-dependent flashing with proper step and counter-flashing, and the problem doesn’t come back. For an exact quote on your flashing repair, call (866) 321-6172.
Service Areas Near San Fernando
We work throughout the northeast Valley. Beyond San Fernando, we cover Van Nuys, Valley Glen, North Hills, and the surrounding neighborhoods. For homes on the northeastern edge of the Valley, we provide Owens Corning service in Shadow Hills, and for homeowners just over the 5, Owens Corning service in Burbank.
Book Your Owens Corning Service in San Fernando Today
If your roof is leaking, losing granules, or just looking tired, don’t wait for the next winter rain to tell you what’s already wrong. Call (866) 321-6172 and we’ll get on your San Fernando roof, give you a straight answer, and put a free estimate in your hand.
Written by Rick Dominguez, Owner at Van Nuys Roofing Co, serving San Fernando and the San Fernando Valley.