Arizona Roof Inspection Checklist

A proper Arizona roof inspection covers seven areas: underlayment condition, tile or shingle integrity, flashing and penetrations, rooftop equipment, drainage, the attic, and documentation. The desert-specific items are underlayment age and rooftop evaporative coolers, and national checklists omit both. Most of this list you can work through yourself from the ground and the attic in about thirty minutes. The parts that require walking the roof are the parts worth paying a licensed contractor for.

The generic roof inspection checklist assumes ice dams, gutter systems, and moss. None of those are your problem here. What kills Arizona roofs is heat, ultraviolet exposure, and monsoon wind, and the inspection that matters looks for the damage those cause.

What can you check yourself from the ground?

Start here, because it costs nothing and catches most obvious problems.

• Roof plane, viewed from each side with binoculars. Lifted, shifted, or misaligned tile. Missing shingle tabs. Displaced ridge caps.
• Roof edges. Bent or separated drip edge, lifted starter course, sagging fascia.
• Ground debris. Tile fragments in the yard, shingle granules pooling at downspout outlets, pieces of flashing on the patio.
• Roof line silhouette. Any sag, dip, or wave along the ridge or between rafters indicates a structural or decking issue rather than a surface one.
• Rooftop equipment, from below. Evaporative cooler, satellite mounts, solar attachments, vent stacks. Look for anything visibly loose or tilted.

Do not climb up. Arizona tile breaks underfoot, and tile you break yourself is not storm damage an insurer will pay for.

What should you check in the attic?

The attic tells the truth earlier than the roof surface does, and this is the single highest-value thing a homeowner can do.

Go up in daylight with a flashlight and look for:

• Daylight through the deck. Any pinhole of light is a hole.
• Water staining on the underside of decking or on rafters. Dark streaks and tide lines mark past leaks even when everything is dry today.
• Damp or compressed insulation. Wet insulation compacts and loses R-value permanently.
• Rusted nail shanks. Condensation indicator, and it points at a ventilation problem.
• Daylight or blocked airflow at soffit vents. Ventilation failure shortens roof life and voids most manufacturer coverage.

That last point matters more than homeowners expect. Nearly every manufacturer conditions coverage on adequate attic ventilation, and in a climate where the NWS Phoenix office documents sustained extreme heat, an underventilated attic cooks shingles from below. See attic ventilation and your Arizona roof.

Why is underlayment age the most important item on the list?

Because on a tile roof it is the actual water barrier, and you cannot see it.

Tile lasts 30 to 50 years. Underlayment beneath it typically fails at 15 to 25 in Arizona heat, and felt used on homes built before the mid 2000s often fails sooner. The NRCA's technical resources treat underlayment as a defined service-life component, not a permanent one.

Practical rule: if your home is 18 years or older and still on original underlayment, you are due for a real inspection regardless of how the tile looks from the street. Our piece on why underlayment matters covers the failure mode.

This is the item national checklists miss entirely, and it is the one that determines whether you need a repair or a re-roof.

What are the Arizona-specific items?

Four things a national checklist will not mention.

Evaporative cooler mounts. Roof-mounted swamp coolers are near-universal here and a leading leak source. Check the curb seal, the pan, and the water line penetration. A cooler that has been on a roof for fifteen years has almost certainly moved.

Shifted tile without breakage. Wind lifts and reseats tile without cracking it. The roof looks fine and the underlayment sits exposed. This is the most commonly missed monsoon damage in the state.

UV degradation on any coating or foam. On a foam or coated roof, chalking, blistering, or exposed foam means the topcoat has failed and the clock is running fast. See cool roof coating in Arizona.

Parapet walls and scuppers. Common on flat and low-slope Arizona homes and a frequent failure point, since water has nowhere else to go.

What does a professional inspection add?

Three things you cannot do from the ground: walking the roof safely, lifting tile to assess underlayment directly, and producing documentation that carries weight with an insurer.

That last one matters after a storm. If you took wind during monsoon season, an independent inspection dated close to the event, referencing a documented NWS storm date, is far stronger evidence than a description offered weeks later. See 2026 monsoon roof damage.

Verify licensing before you book. Roofing requires a specific classification at the Arizona Registrar of Contractors, and a general residential license does not cover it.

Be alert to the free inspection that becomes a sales pitch. A legitimate inspection produces a written report with photographs whether or not you buy anything.

When should you schedule an inspection?

Twice a year on an older roof, and once after any significant storm.

The monsoon season runs June 15 through September 30. The two useful windows are May, before the season, and October, after it. Our pre-monsoon inspection guide covers the spring pass.

Also inspect before listing a home, before buying one, and before any solar installation, since panel mounting on a roof near end of life is an expensive sequencing error.

What should the written report contain?

If you are paying for it, expect all of this:

1. Photographs of every issue, taken on the roof rather than from the ground.
2. Underlayment condition and estimated remaining life, not just tile condition.
3. Ventilation assessment.
4. Flashing and penetration condition, itemized by location.
5. A clear repair-versus-replace recommendation with reasoning.
6. The inspection date and the inspector's license number.

A report that says "roof needs replacement" with no photographs and no underlayment assessment is a quote, not an inspection. If the recommendation is replacement, our guide to roof repair versus replacement helps you evaluate whether that is justified.

Frequently Asked Questions

How much does a roof inspection cost in Arizona? Many contractors offer free inspections, which are sales visits with a report attached. Independent paid inspections generally run in the low hundreds and carry more weight in an insurance dispute because the inspector is not bidding the repair.

How often should an Arizona roof be inspected? Twice a year on a roof over 15 years old, ideally before and after monsoon season, plus after any significant storm. Newer roofs can go to an annual check.

Can I inspect my own roof in Arizona? You can do the ground and attic portions, which catch most obvious problems. Do not walk a tile roof. Tile breaks underfoot, the damage is not covered, and falls are the real risk.

What is the most commonly missed item on Arizona roofs? Tile that wind has lifted and reseated without breaking. The roof looks intact from the street while the underlayment underneath is exposed, and it usually surfaces as a leak months later.

Does a roof inspection help with an insurance claim? Yes, particularly one dated close to a documented storm event. It establishes condition and timing, which is exactly what insurers dispute on older roofs.