When a San Jose homeowner in the 95002 zip code needed a full roof replacement, they turned to a trusted local San Jose roofing contractor to handle every detail — from tearing off the old roof to reinstalling solar panels and pulling a city building permit. The result was a stunning, long-lasting new roof installed with Owens Corning Duration Cool Series asphalt shingles, backed by a top-tier Owens Corning Platinum Preferred Contractor.
What Type of Roof Replacement Was Performed?
This was a complete tear-off and full roof replacement on a residential home in San Jose, CA. The project involved removing the existing roofing system down to the deck, performing a full deck inspection, installing new components throughout, and finishing with a building final inspection from the city. A secondary scope was also completed — a half-inch OSB plywood overlay — which was added after the initial deck inspection revealed the need for additional structural support beneath the new roofing system.
Total project value: $29,754.18
Step-by-Step Scope of Work
Demolition & Removal
Before any new materials could be installed, the existing roofing system had to be completely removed. This included:
- Demolition and disposal of one layer of existing roof membrane and underlayment
- Removal and disposal of top and bottom base assembly flashings, perimeter flashings, attic exhaust vents, metal valleys, and all flashings around plumbing pipes
- Site protection for the homeowner’s personal belongings such as BBQ grills, air conditioning units, and patio furniture
- Daily cleanup at the end of each working day
Roof Deck Inspection
Once the old roofing system was stripped, the crew performed a thorough inspection of the entire roof deck and advised the homeowner on its condition before proceeding. During this inspection, areas of the deck requiring reinforcement were identified, leading to the added scope of a half-inch OSB overlay installed in a brick formation across the entire roofing deck, properly fastened for long-term stability.
New Roofing System Installation
With the deck prepared and reinforced, the installation of the new roofing system began:
- 2″x2″ perimeter drip edge flashing installed on all rakes and eaves
- 24″ galvanized steel valley flashings for proper water channeling
- New aluminum top and bottom vent assemblies for attic ventilation
- New base flashings around all plumbing pipe jacks
- Rubber collars for all plumbing pipejacks
- Low profile asphalt shingle O’Hagon vents for ridge ventilation
- Self-adhering ice and water shield in all vulnerable areas including vents, pipes, valleys, and chimneys
- High-performance synthetic underlayment installed across the entire roof surface per manufacturer specifications for proper fasteners and overlap
- Starter course shingles on all eaves and rakes for increased wind protection
- Owens Corning Duration Cool Series asphalt shingles
- Owens Corning DecoRidge Hip and Ridge shingles
Solar Panel Relocation
This home had an existing solar panel system on the roof. As part of our solar-ready roofing service, the crew carefully:
- Removed all solar panels and set them aside safely
- Replaced old solar mounting pucks with new SOLAR mounts
- Reinstalled all solar panels and tested them to ensure they were working properly after reinstallation
This is a critical step that many roofers overlook — improperly removed or reinstalled solar panels can result in leaks, roof damage, or system failures. Getting this right is non-negotiable.
Project Completion & City Inspection
Before the project was considered complete, the team:
- Painted all flashings and accessories to match the roofing shingles
- Completed a full debris cleanup using magnets, brooms, and blowers
- Conducted a final walk-through for any touch-ups
- Requested and obtained a Building Final Inspection from the City of San Jose
Pulling permits and passing city inspection is a hallmark of a reputable roofing contractor — and an important protection for the homeowner when it comes time to sell the property.
Why Owens Corning Duration Cool Series?
The Owens Corning Duration Cool Series is one of the most popular premium asphalt shingles on the market, and for good reason. Here’s what makes it a smart choice for San Jose homeowners:
What is Owens Corning Duration Cool Series?
The Duration Cool Series is an asphalt shingle designed with SureNail® Technology for enhanced wind resistance, TruDefinition® color contrast for curb appeal, and solar-reflective granules that help reduce attic heat gain — making it especially beneficial in warm California climates. The shingles are rated to withstand winds up to 130 mph and carry a Limited Lifetime Warranty. Learn more about the benefits of cool roofing in the Bay Area.
What is the Difference Between Owens Corning Duration and Duration Cool?
The “Cool” designation means the shingle features specially engineered granules that reflect more solar energy than standard shingles. This can help lower attic temperatures and reduce energy costs — a meaningful benefit in the South Bay, where summer temperatures regularly climb.
What is an Owens Corning Platinum Preferred Contractor?
Platinum Preferred Contractor is the highest contractor certification level in the Owens Corning Roofing Contractor Network. Only a small percentage of roofing contractors earn this designation. To qualify, a contractor must meet strict requirements for installation experience, licensing, insurance, and customer satisfaction. Homeowners who hire a Platinum Preferred Contractor are eligible for Owens Corning’s strongest warranty options. Read our customer reviews to see what homeowners say about working with us.
OSB Plywood Overlay: What Is It and When Is It Needed?
What is a Plywood Overlay on a Roof?
A roof deck overlay — in this case, half-inch OSB (Oriented Strand Board) — involves installing a new layer of structural sheathing directly over the existing roof deck, rather than removing it. This adds rigidity and a smooth, uniform surface for the new roofing system to be installed over.
Why Would a Roofer Recommend a Plywood Overlay?
When a roof deck inspection reveals soft spots, minor deterioration, uneven boards, or thickness insufficient for modern fastening patterns, a plywood overlay can restore the structural integrity of the deck without requiring a full deck replacement. On this project, the OSB was installed in a brick formation (staggered joints) and properly fastened for maximum stability and shear strength.
Serving San Jose and the South Bay
This project was completed in the Archangel Drive neighborhood of San Jose, CA 95002 — a residential area in the southeastern part of the city. Lifetime Roofing & Renovation serves homeowners across San Jose and the broader Santa Clara County region, including Sunnyvale, Campbell, Cupertino, Milpitas, and surrounding communities. View more of our completed work in our roofing projects portfolio.
Looking for a roof replacement in San Jose? Whether your roof is at the end of its life, you’ve sustained storm damage, or you want to upgrade ahead of a home sale, our team is here to help. We are an Owens Corning Platinum Preferred Contractor with a proven track record of full-service residential roofing — including permit management, solar panel relocation, and city inspections.
📞 Call us: (408) 685-2177
🌐 lifetimeroofingrenovation.com
LIC# 1090028
Frequently Asked Questions: Roof Replacement in San Jose, CA
How long does a full roof replacement take in San Jose?
Most residential full roof replacements in San Jose can be completed in 1–3 days depending on the size of the home, complexity of the roofline, and any additional scope such as deck overlays or solar panel work. This project was completed across multiple days given the additional OSB overlay and solar coordination.
Do I need a permit for a roof replacement in San Jose?
Yes. The City of San Jose requires a building permit for a full roof replacement. After the work is complete, a building final inspection is required. A reputable roofing contractor will handle the permit application and schedule the final inspection on your behalf.
Does roof replacement affect solar panels?
Yes — any roofing work requires the solar panels to be carefully removed and reinstalled. New solar mounts (flashing pucks) should be installed as part of the re-roofing process. When done properly, solar panels should be fully functional after reinstallation. Always confirm your roofing contractor has experience with solar panel relocation before signing a contract.
What is the best roofing shingle for San Jose, CA?
For San Jose homeowners, a solar-reflective asphalt shingle like the Owens Corning Duration Cool Series is an excellent choice. The cool-roof granules reduce heat gain, which can lower cooling costs. The shingles also carry a strong wind rating — important during seasonal wind events — and come with a Limited Lifetime Warranty when installed by a certified contractor.
How much does a roof replacement cost in San Jose, CA?
The cost of a full roof replacement in San Jose varies based on the size and pitch of the roof, the materials selected, and any additional scope such as deck repairs, solar panel work, or permits. This project totaled approximately $29,754. Most residential roof replacements in the South Bay range from $15,000 to $35,000+. Contact us for a free estimate.
Project completed by Lifetime Roofing & Renovation — San Jose, CA | LIC# 1090028 | Owens Corning Platinum Preferred Contractor
