Owens Corning
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Flat & low-slopeFree roof inspection with deck photos before we talk money - GAF and Owens Corning certified installation
Owens Corning Roofing in Van Nuys, CA | Koreatown Roofing
We provide independent Owens Corning roofing service across Van Nuys, installing and repairing Oakridge, Duration, and Supreme shingle systems. What makes our work here different comes down to one hard fact: Van Nuys summers bake these roofs in ways coastal LA never sees, so we’re constantly dealing with brittle tabs and dead seal strips that other crews misdiagnose as hail damage. We’re Koreatown Roofing, a roofing-only contractor working with seven manufacturers, and Owens Corning is one brand we know from tear-off to ridge cap. Call (866) 974-2271 for a free estimate from a crew that actually works in Van Nuys.
Why Van Nuys Residents Choose Us for Owens Corning Service
Most roofing calls we get in Van Nuys start the same way: a homeowner finds granules in a gutter or notices a drip near a flat-roof transition, and they don’t know whether to patch or tear off. We walk the roof, tell them what’s actually failing, and quote the fix without pushing a brand they don’t need. Our owner, Manny Cordero, learned roofing through the building trades program at Los Angeles Trade-Technical College, where instructors drilled material specs and installation sequencing before he ever set foot on a customer’s house. That training shows in how we talk about Owens Corning products: we know what’s stock, what’s worth upgrading, and what’s just an upsell. Manny puts it plainly: “Tell me what your roof actually needs, and that’s what you’ll get, no upsell, no guesswork.”
Styles & brands we work with






Common Owens Corning Roofing Problems We Solve in Van Nuys
- Brittle, granule-shedding field shingles. Van Nuys regularly hits 100°F in summer, and that UV exposure bakes Owens Corning Oakridge and Duration shingles until they crack and lose granules years faster than they would in Santa Monica. We see it on post-war tract homes across 91401 and 91405 every week.
- Lifted or creased tabs from failed seal strips. The factory-sealed adhesive strips on these shingles often never fully bond in Valley heat. Then the first decent Santa Ana wind gets under the tabs and folds them. We repair this, but on older roofs we tell owners when the seal failure is roof-wide and patching won’t hold.
- Leaks at flat-to-slope transitions. Much of Van Nuys is 1940s to 1960s low-pitch or flat construction. Where shingles meet built-up tar-and-gravel sections, thermal cycling cracks the seam, and winter rain finds it. Flashing repair here is a big part of what we do.
- Degraded underlayment and soft sheathing. By the time an Owens Corning roof in Van Nuys shows its first leak, the decking underneath is often already compromised. The dry heat ages the underlayment, and when we pull shingles we routinely find plywood that needs replacing.
- Hidden layers on old flat portions. In the older neighborhoods around 91401 and 91405, many original roofs carry multiple layers of aging tar paper and gravel that were never stripped. That adds weight and hides leaks, and it changes how we approach an Owens Corning re-roof.
Owens Corning Service in Van Nuys: What Local Conditions Mean for Your Equipment
Here’s a Van Nuys-specific fact that shapes how we approach every Owens Corning job in this city: in the older pockets of 91401 and 91405, many original low-pitch roofs still carry three or four layers of aging tar paper and gravel that no previous owner ever stripped. Back when these homes were built in the 1940s and 1950s, re-roofing meant slapping another layer over the old one. Today that means two things for an Owens Corning roof going on top. First, hidden weight: a roof structure rated for one or two layers is often carrying double that before we add anything. Second, pre-1980s materials may contain asbestos, which changes tear-off protocol and disposal costs. We check what’s under the shingles before we quote. On one tract house in the 91401 ZIP, we pulled up an aging Owens Corning Supreme roof with brittle, lifted tabs and found three layers of old tar paper and gravel underneath that had never been stripped. We stripped to the deck, replaced soft sheathing, set new Duration shingles with fresh underlayment and flashing at the flat-to-slope transition, and documented the pre-1980 material handling before disposal so the homeowner knew exactly what was under there. That’s not a job a coastal steep-slope crew deals with, and it’s routine in Van Nuys.
Owens Corning Models and Products We Service in Van Nuys
We install and repair the Owens Corning lines you’re actually likely to have on a Van Nuys roof. Duration and Duration Premium are the ones we set most often on residential replacements here, Oakridge and Oakridge SBS show up constantly on mid-century homes, and Supreme is what we pull off more of the older stock than we’d care to count. We also handle Owens Corning metal shingle and corrugated metal panel systems, which we recommend more often than not on Valley flat-roof sections because of how they hold up to UV. On the parts side, we use genuine Owens Corning starter strip, hip and ridge, and matching shingles wherever they affect warranty coverage and appearance, and proven aftermarket flashing and underlayment where they don’t. That keeps your Owens Corning warranty intact without paying a brand premium on every component.
Owens Corning Roofing Service Pricing in Van Nuys
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AfterServing Van Nuys, CA — Our Local Coverage Area
We’re based in the Van Nuys area and know this community well, so ask about our Roof Repair in Van Nuys. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Owens Corning Roofing in Van Nuys
Will my Owens Corning shingles fail faster in Van Nuys than in coastal LA?
Yes, often significantly faster because Van Nuys summer heat regularly exceeds 100°F, and that sustained UV bakes shingles brittle and breaks down the adhesive seal strips, while coastal neighborhoods run much cooler. We recommend harder-wearing lines like Duration for Van Nuys roofs and a cool-roof coating where Title 24 applies. Call (866) 974-2271 and we’ll walk the roof and tell you what yours can handle before you spend anything.
We keep finding leaks in our old Van Nuys flat roof – can Owens Corning shingles go over the existing layers?
In most Van Nuys flat-roof situations, no. If you have multiple layers of old tar-and-gravel built-up roofing, adding shingles over it masks the weight problem and hides the leaks you have. We strip to the deck, inspect for asbestos if the layers are pre-1980, and then set the shingle system with proper slope and flashing. Call (866) 974-2271 for a tear-off quote that accounts for what’s actually under the roof.
Our Owens Corning shingle tabs are lifting in the wind – does that mean the roof needs replacing?
Not necessarily. If only a few tabs are lifted and the shingles still hold granules when you rub them, we can often reseal them with new adhesive. If the lifting is roof-wide and the shingles are brittle and shedding granules, replacing is usually cheaper in the long run than chasing one wind-damaged tab after another. We’ll tell you straight which one yours is.
Do we need a cool roof to meet Title 24 on a Van Nuys re-roof, and does Owens Corning offer that?
Title 24 energy rules do apply to many Van Nuys re-roofs, and yes, Owens Corning makes cool-roof shingle options that reflect more sunlight and reduce attic heat. Whether your specific home requires one depends on your roof type and the scope of your re-roof, and we walk through that before you pick a product. Call (866) 974-2271 and we’ll check your address against the current code requirements so you get a quote that’s compliant on day one.
Can you repair flashing and vent boots on an Owens Corning roof without replacing the whole roof?
Yes, and that’s one of the most common repairs we do in Van Nuys. Flashing at chimneys, skylights, and flat-to-slope transitions fails long before the shingles around it. We replace the flashing or vent boot with the surrounding shingles intact, assuming the rest of the roof is sound. If it isn’t, we’ll tell you before you spend on a patch that won’t last.
Service Areas Near Van Nuys
We work throughout the San Fernando Valley and the broader LA basin. You’ll find our crews in Owens Corning service in Valley Glen, Sherman Oaks, North Hollywood, and Lake Balboa, and across the hills in Koreatown, Silver Lake, Echo Park, and Hollywood. Down south, we also cover Owens Corning service in East Rancho Dominguez. If you’re in Van Nuys, you’re in our Van Nuys service area, and we’re already familiar with the roof stock here.
About Koreatown Roofing
Koreatown Roofing is a roofing-only contractor: inspection, repair, and replacement are what we do all day, every job. We install products from seven manufacturers including Owens Corning, GAF, CertainTeed, IKO, Atlas, Tamko, and Boral, which means we recommend a roof because it fits your home and budget, not because it’s the only brand we stock. If you’re comparing options across brands, see our Owens Corning sales & service page for a deeper look at that product line. We’re not a general contractor who subcontracted your roof to the lowest bidder. Manny Cordero owns the company and still walks roofs himself, and he built this business the way he learned the trade: explain what the roof needs, quote it straight, and stand behind it.
Book Your Owens Corning Service in Van Nuys Today
If you’re seeing lifted tabs, granule buildup, or a drip near a flat-roof transition, call us at (866) 974-2271 for a free estimate. We’ll walk your Van Nuys roof, tell you what’s failing and why, and give you a written quote with no change orders.
Written by Manny Cordero, Owner at Koreatown Roofing, serving Van Nuys roofing needs with Owens Corning products since day one, including Sherman Oaks Owens Corning service.