The Roof Inspection Checklist
This is the ten-point roof inspection checklist we walk before storm season across Orange County, Los Angeles County, San Diego County, the Inland Empire, and Ventura County. It takes about thirty minutes. There are two editions — one for houses, one for commercial and industrial buildings — and a tear-off page in each you can print, clip to a board, and mark up as you walk. No email required.
STORM SEASON 2026–27
NOAA’s Climate Prediction Center puts the odds of a very strong El Niño at 81% for October through December 2026, with a 97% chance conditions hold into early spring 2027. At that strength it would rank among the largest events on record going back to 1950.
Peak is October through December — not deep winter. The window to inspect, plan, and act closes earlier than most owners expect.
Storm Season 2026-27 Prep Checklists
The ten-point walkthrough we run before the rain starts. Print it, walk it, keep it. No email required.
Residential
Ten things to look at on a house before the rain, plus the three that get expensive if you wait. Ground level, about thirty minutes. Includes a printable tear-off page.
Commercial & Industrial
Ten low-slope checkpoints your maintenance team can run in thirty minutes, plus the three that turn a line item into a capital project. Includes a printable tear-off page.
Both editions are free and require no email address.
What’s in the checklist
Each edition runs three sections. The Window explains why October through December decides your winter and what each month of delay costs you. The Ten Points covers what to look at, what a finding actually means, and the point where something stops being a repair. The Tear-Off is a single printable page with a pass, watch, and fix column beside every checkpoint, plus space for notes and photographs.
When should you inspect your roof in Southern California?
August through October. Heat damage from June and July has fully expressed itself by August and reads clearly on the surface, and coatings, membranes, and adhesives still get the dry substrate and daytime temperatures they need to cure properly. Once consistent rain arrives, most planned work becomes emergency work performed on somebody else’s schedule.
When should you inspect your roof in Southern California?
August through October. Heat damage from June and July has fully expressed itself by August and reads clearly on the surface, and coatings, membranes, and adhesives still get the dry substrate and daytime temperatures they need to cure properly. Once consistent rain arrives, most planned work becomes emergency work performed on somebody else’s schedule.
The reason the calendar matters this much is that the three available paths take different amounts of time. Repair is measured in days. Restoration in weeks. Replacement in months. The date you start decides which of those is still available to you.
The ten points — residential
Every item below can be checked from the ground, from a ladder at the eave, or from inside the attic. Nothing here requires walking a pitched roof, and you should not walk one without fall protection.
- Gutters and downspouts clear
- Valleys free of debris, metal sound
- Flashings intact, no mastic patches
- Pipe boots and collars not split
- Field: granules, curling, slipped tile
- Ridge and hip caps secure, line straight
- Wall and chimney transitions, kick-outs
- Attic dry — no stains, rust, or damp insulation
- Limbs trimmed back, debris cleared
- Ground drains water away from the house
The ten points — commercial and industrial
This edition is written for low-slope and flat assemblies and is scoped so an in-house maintenance team can run it without specialized equipment. Fall protection is required.
This edition is written for low-slope and flat assemblies and is scoped so an in-house maintenance team can run it without specialized equipment. Fall protection is required.
- Drains and scuppers clear, strainers in place
- No water standing 48 hours after rain
- Field seams and laps sound, no fishmouths
- Parapet coping and counter-flashing intact
- Curbs and supports flashed, not cut
- Units secure, condensate off the membrane
- Edge metal and terminations fastened
- Skylights and hatches sound and protected
- Membrane surface intact, no exposed scrim
- Warranty and inspection file current
Three findings that mean stop and call
Most items on either checklist can wait for the next dry day. These cannot, and they are the reason the checklist has a separate section for them.
On a house
An active drip or wet ceiling anywhere inside the home. A sagging or wavy ridge line, which is a structural finding rather than a roofing one. Daylight visible through the roof deck when viewed from inside the attic.
On a commercial or industrial building
An active leak into a tenant space or over stored product. Ponding water that has not drained within 48 hours. Membrane lifted or peeled anywhere along the perimeter.
Repair, restoration, or replacement — how the decision actually gets made
A wet roof and a tired roof look identical from a ladder. The difference is only visible through core samples and a moisture scan, and those two conclusions are separated by a very large number. Any recommendation made without measuring one of them is a guess.
When a repair is the right call
Damage is localized, the deck and insulation are dry, and the membrane or covering has service life remaining. Early is the entire strategy here — the same split sealant is a maintenance line item in August and a wet-insulation claim in January.
When restoration is the right call
The deck is sound and the insulation is dry, but the surface is weathered. A silicone restoration can add years of service for a fraction of a tear-off and carries a renewable warranty at the end of its term. Restore before you replace whenever the evidence supports it.
When replacement is the right call
Saturated insulation, patches over previous patches, or recurring ponding that no longer resolves. At that point the assembly itself has failed and coating over it only defers the same conversation at a higher cost.
Common questions
How often should a roof be inspected?
Twice a year for most Southern California properties — once before storm season and once after — plus after any significant wind event. Commercial roofs under an active manufacturer warranty often require documented annual inspections to keep that warranty valid, and a lapsed inspection file is one of the most common reasons a warranty claim gets denied.
What should a roof inspection report include?
Dated overview photographs of every roof section, every penetration photographed individually, every seam flagged as a finding, a core sample with the sample visible in frame, a moisture meter reading with the number legible, drains photographed before and after clearing, any prior repair documented as-found, and a marked-up roof plan tying each photograph to a location on the building. If a finding has no photograph, it is not a finding.
Can I inspect my own roof?
You can run the residential checklist yourself from the ground, from a ladder at the eave, and from inside the attic — that is what it was written for. What you cannot do without equipment is determine whether the insulation beneath the surface is wet, and that single question drives the difference between a repair and a replacement.
What does a roof inspection cost in Orange County?
Method Roofing Group performs documented evaluations at no cost across Orange County, Los Angeles County, San Diego County, the Inland Empire, and Ventura County. You receive the findings in writing along with the photographs, and they remain yours whether or not you hire us for the work.
Does homeowners insurance cover an older roof in California?
It depends on the roof’s age and your carrier’s filed guidelines. Several California carriers now treat roof age as an underwriting trigger independent of the roof’s actual condition, and some limit older roofs to actual cash value rather than full replacement cost. A documented install date and dated photographs of current condition are the two things underwriters most consistently accept. Confirm your specific terms with your carrier or broker — this is not insurance advice.
How long does a roof inspection take?
The checklist itself takes about thirty minutes on a typical house or a single commercial sector. A documented evaluation with core samples and a moisture survey takes longer and depends on the size and complexity of the roof.
Where we work
Method Roofing Group serves Orange County, Los Angeles County, San Diego County, the Inland Empire, and Ventura County — including Newport Beach, Irvine, Huntington Beach, Anaheim, Long Beach, Los Angeles, Riverside, San Bernardino, San Diego, and Ventura. We work on residential, commercial, and industrial roofs. CSLB #1157257.
Get a documented evaluation
Marked something in the Fix column? Send us the page you marked up, or let us walk it for you. Either way you get the findings in writing, the photographs you keep, and a straight answer about repair, restoration, or replacement — before the first storm sets the schedule for you.
Schedule a roof inspection below — or call (949) 866-3011 to book by phone.
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