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 | Moreno Valley Roof Repair
We provide independent Owens Corning roof repair, shingle replacement, and re-roofing across Van Nuys, zip codes 91408 through 91411, and also offer Sherman Oaks Owens Corning service. What makes our Owens Corning work different here is that we check attic ventilation before we price a re-roof, because Van Nuys heat attacks shingles from the underside as much as the top. Call (866) 217-3967 for a free estimate.
Our crew works on Owens Corning Duration®, Oakridge®, and Supreme® systems throughout the San Fernando Valley every week, from 1950s ranch houses to flat-roof apartment buildings. We use genuine Owens Corning shingles, underlayment, and accessories, and we’re an independent contractor. Not authorized, sponsored, or endorsed by Owens Corning.
Why Van Nuys Residents Choose Us for Owens Corning Service
We’ve spent years on Van Nuys roofs, and we know how Owens Corning products actually age under valley sun. Ruben Ibarra, our owner, grew up in Sunnymead Ranch and trained in construction technology at Riverside City College before going out on his own. He’ll tell you what the roof needs, not what sounds like a bigger job.
Because we stock genuine Owens Corning shingles and WeatherLock® underlayment locally, we can match profile and color to your existing field without forcing a whole-roof replacement when only one slope or valley is failing. The old 3-tab on a shaded north plane may have years left while the south plane is bald. We don’t tear off shingles that still protect the deck.
Working with seven major manufacturers, including GAF, CertainTeed, Owens Corning, IKO, Atlas, Tamko, and Boral, means nobody here is married to one brand. That matters when you need honest guidance on whether a patch makes sense or a re-roof is past due.
Styles & brands we work with
Common Owens Corning Roofing Problems We Solve in Van Nuys
- Adhesive strip failure on Duration® and Oakridge® tabs. Van Nuys summer attic temperatures cook the seal-down strip from below. Tabs stay unsealed, then lift in the first Santa Ana wind event of the fall. We see this on unvented 1950s and 1960s tract homes all over Van Nuys.
- Severe granule loss and mat brittleness on south- and west-facing planes. Supreme® 3-tab and Oakridge® roofs bake under 100°F-plus sun for 15 to 20 years while the shaded north plane often looks nearly new. Owners call us thinking the whole roof is shot when actually one slope failed.
- Heat-cracked, shrunken shingle mats around vent boots and valleys. Unvented mid-century roofs in Van Nuys trap attic heat, so the shingle mat ages from underneath before the surface shows serious wear. Leaks show up at penetrations and valleys first.
- Dried, checked WeatherLock® and felt underlayment on low-slope and flat sections. The first winter storm pushes water sideways across the deck, and old underlayment that dried through a long hot summer suddenly leaks. This is a block-by-block problem in Van Nuys apartment and fourplex stock.
- First-storm leak rush after a dry summer and fall. Aging, sun-brittle shingles and dried-out flat roof seams across Van Nuys fail together in the first strong storm or Santa Ana wind. Our phone rings hard those weeks, and we prioritize leaks that are actively letting water in.
Owens Corning Service in Van Nuys: What Local Conditions Mean for Your Roof
Van Nuys is one of the hottest spots in the San Fernando Valley. Summer highs routinely clear 100°F while coastal LA sits 10 to 15 degrees cooler. Much of Van Nuys, especially the 1940s to 1970s tract and apartment stock, was built with little or no attic ventilation. That means Owens Corning shingles here bake from the underside as well as the top. An Owens Corning roof that would last 30 years in a coastal climate with decent ventilation may show real granule loss and mat brittleness at 15 to 20 years in Van Nuys. Our inspections check attic intake and exhaust before we price a re-roof, not after, because adding ridge and eave venting can add years to whatever shingle you put on next. We also handle Owens Corning repair in Encino with the same thorough approach.
We were called to a 1950s ranch house off Sylmar Avenue in Van Nuys after the first winter storm. The 3-tab shingle field had gone brittle through a dry summer and was leaking at a dried-out valley over the rear addition. The south plane was bald and heat-cracked, tabs standing up. The north plane still looked serviceable. The attic had no intake venting at all. We replaced the failing section in Duration® architectural shingles with new WeatherLock® in the valley, added ridge and eave venting, and the owner stopped getting both the leak and the upstairs heat complaint.
Owens Corning Models & Products We Service in Van Nuys
We work on the full Owens Corning residential lineup and their underlayment systems: Duration® architectural shingles, Oakridge® architectural shingles, Supreme® 3-tab shingles, WeatherLock® self-adhering underlayment, and Deck Defense® synthetic underlayment. For flat and low-slope sections common on Van Nuys apartment buildings and patio roofs, we match the existing membrane and address seam failures before they become interior leaks.
We use genuine Owens Corning shingles, underlayment, and accessory components so the assembly and its warranty paperwork stay intact. Profile and color get matched to your existing field. Where a roof is 20-plus years old with granule loss across multiple planes, we say so plainly: patching buys a season or two, not a decade.
For broader Owens Corning product and service details, see our Owens Corning sales & service page.
See the difference
Before
After
Before
After
Before
AfterOwens Corning Service Pricing in Van Nuys
- Minor shingle repair or tab resealing: $250 – $450
- Valley or flashing repair with new WeatherLock® underlayment: $400 – $700
- Flat roof patch, small section: $500 – $900
- One-slope shingle replacement (Duration® or Oakridge®): $1,200 – $2,500
- Full roof replacement on a typical 1,200 – 1,600 sq ft Van Nuys ranch: $9,500 – $16,000 depending on shingle line, deck condition, and ventilation work
What drives cost in Van Nuys is attic ventilation work, dry-rot repairs on 60-year-old decking, and the shingle line you choose. Duration® costs more than Supreme® upfront but handles valley heat better over time. A free estimate means we come out, get on the roof, check the attic, and give you a written line-item quote. Call (866) 217-3967 to schedule.
Serving Van Nuys, CA — Our Local Coverage Area
We’re based in the Van Nuys 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 Van Nuys
The seal-down strip on the shingle tabs has likely failed from underside heat, not surface wear. Van Nuys summer attic temperatures cook the adhesive, so tabs never seal or lose their bond. Then the first Santa Ana wind lifts them. Fixing this properly means resealing where the shingle is still sound or replacing the affected slope if the mat has gone brittle. Call (866) 217-3967 for an inspection before the next wind event.
Most flat roof sections over Van Nuys patios can be patched if the failure is localized: a dried seam, a split at the wall flashing, or ponding-area wear. If the membrane has cracked across the whole section and the deck is spongy, replacement is the honest call. We’ll tell you which one yours is after we see it. Estimates are free.
Yes. Van Nuys runs 10 to 15 degrees hotter than coastal LA through summer, and many mid-century attics here have little or no ventilation. That heat load accelerates granule loss and mat aging from below, so a Duration® roof in Van Nuys may wear closer to 20 to 25 years than the coastal 30-plus, especially on south and west exposures. Proper attic ventilation helps more than most people expect.
You don’t until someone gets on the roof and lifts the shingles at the valley. In Van Nuys we often find both: the valley metal has rusted or separated at the seam, and the surrounding shingle mat has heat-cracked. Treating it as only one or the other means the leak returns. We inspect both and fix both in one visit.
We work on residential and light commercial roofing across Van Nuys, including apartment buildings, fourplexes, and small commercial strips with flat modified-bitumen or built-up roofs. The same principle applies: repair when repair makes sense, replace when it doesn’t. Call (866) 217-3967 and we’ll come look.
Service Areas Near Van Nuys
We serve Van Nuys and the surrounding San Fernando Valley. Our crews regularly work in Valley Glen, Sherman Oaks, North Hollywood, Panorama City, and Lake Balboa. For Owens Corning work in neighboring communities, see Van Nuys service area, Owens Corning service in Valley Glen, and Owens Corning service in Santa Monica.
Book Your Owens Corning Service in Van Nuys Today
If your Owens Corning roof is leaking, lifting, or losing granules on the south side, call (866) 217-3967, or learn more about our Roof Repair in Van Nuys. We’ll get on the roof, check the attic ventilation, and give you a straight answer with a free written estimate.
Written by Ruben Ibarra, Owner at Moreno Valley Roof Repair, serving Van Nuys and the San Fernando Valley.