What Did This Reroof Project Involve?
This was a complete tear-off and shingle reroof on a single-family home at 14819 Sutton St in Los Angeles, CA 91403 — not a lay-over. Every layer of old material came off first, the deck was inspected and partially replaced, and the entire roof was rebuilt from the sheathing up with new underlayment and architectural asphalt shingles.
The homeowner’s goal was straightforward: a structurally sound, weatherproof roof that would perform reliably through Southern California’s heat cycles and the occasional heavy rain event. Los Angeles averages roughly 15 inches of annual rainfall, but when those storms arrive, a compromised roof deck or failed underlayment causes damage fast. Starting fresh was the right call.
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What Did We Find When We Stripped the Old Roof?
Tearing off the old shingles revealed several sheathing boards that had darkened and softened from years of moisture intrusion — a pattern we flag for replacement before any underlayment goes down. In at least 3 distinct sections visible during the tear-off phase, existing 1×6 skip-sheathing boards showed discoloration and surface rot that would have undermined the new shingle attachment if left in place.
Our crews replaced those compromised boards with new plywood panels, fastened flush with the surrounding deck. Across the Los Angeles homes we reroof each year, we replace sheathing on roughly 60% of full tear-off jobs — older homes in the 91403 ZIP code frequently have original 1950s–1960s board sheathing that has never been touched. Catching it before the underlayment goes on is the only practical window to fix it without tearing the new roof apart later.
With a clean, solid deck in place, the team rolled out Rhino Roof U20 synthetic underlayment — a non-woven polypropylene sheet that outperforms traditional 15 lb. or 30 lb. felt in both tear resistance and moisture holdout during the installation window. The underlayment was lapped at all valleys and run tight to the drip edge at every eave.
How Were the Penetrations and Flashings Handled?
Every pipe penetration, vent stack, and roof-mounted HVAC curb was re-flashed during the reroof — not simply shingled around. The finished roof shows 6 or more individual roof penetrations across the two main planes, including plumbing vents, exhaust stacks, and low-profile box vents for attic ventilation. Each one received a new pipe boot or metal flashing collar before shingles were laid over the surrounding field.
The white brick chimney on the lower rear section of the home was also re-flashed at its base. Chimney step flashing is one of the most common sources of leak callbacks on reroof jobs that cut corners — proper counter-flashing and step flashing integrated into each shingle course is the only durable method, and that’s what was installed here.
As of 2025, California’s Title 24 building energy standards also require that roof assemblies on residential structures meet minimum thermal performance thresholds. The new shingle system, combined with the continuous underlayment layer, keeps the assembly compliant for residential re-roofing in Los Angeles County.
The Finished Roof: Gray Architectural Shingles Across a Multi-Plane Layout
The completed roof is covered in gray laminated architectural asphalt shingles — a dimensional product that provides both a clean visual profile and a heavier weight than standard 3-tab shingles, which translates to better wind resistance and a longer service life. Architectural (laminate) shingles installed in Southern California typically carry a rated wind resistance of 110–130 mph depending on manufacturer specifications.
The multi-plane layout of this Sutton St home — with intersecting hip sections, valley runs, and a step down to the lower rear addition — required careful layout and pattern matching to keep the coursing lines consistent across planes. Ridge cap shingles were hand-cut and layered at every hip ridge and the main peak, producing the crisp shadow lines visible in the finished aerial views.
Roof Replacement CA is cslb.ca.gov/” rel=”noopener”>Licensed by the California Contractors State License Board (CSLB), and all work on this project was performed to current Los Angeles County building standards.
Get a Quote on Your Los Angeles Reroof
If your home needs a full tear-off and replacement — not a patch, not a layer-over — this Sutton St project is a straightforward example of what that process looks like from bare deck to finished shingle. Call Roof Replacement CA or submit a project inquiry online to schedule a roof inspection and written estimate. We serve the greater Los Angeles area including Sherman Oaks, Studio City, Van Nuys, and surrounding 91403 ZIP codes.
