The fastest way to find your roof’s age is to look up the home’s construction year at the county assessor, search city or county permit records for a roofing permit, and then confirm what you find with your paperwork, aerial photos, and a roof inspection. The assessor’s year dates the house, not the roof, so the permit and photo trail does most of the work. Lyons Roofing has inspected and repaired Arizona roofs since 1993, licensed under AZ ROC# 348074, with general liability and workers compensation coverage on every project. The BBB has awarded us its Ethics Award and an A+ rating, reflected in our active A+ BBB accreditation for our Phoenix office and A+ BBB accreditation for our Tucson office. Angi recognizes us as a top-rated, repeated Super Service Award winner through our top-rated Phoenix Angi profile and top-rated Tucson Angi profile. Thousands of verified five-star reviews appear on our Phoenix Google reviews and Tucson Google reviews. As an ARCA member in good standing, we meet the industry standards governing professional roofing in Arizona. Every Lyons roof inspection report includes the roofing material type and an estimated age. Call 602-638-3135 (Phoenix) or 520-900-1442 (Tucson) to schedule a free inspection.
What Does Roof Age Mean for an Arizona Home?
Roof age is the time since the current roof covering went on, and that is not always the age of the house. A home can carry its original roof, a roof replaced once or twice, or a mix, such as original tile over newer underlayment. Each layer ages on its own schedule, so the first step is deciding which age you want to find.
| What You Are Dating | Why It Matters | Where the Date Usually Comes From |
|---|---|---|
| The home | Sets the oldest the roof could possibly be | County assessor record |
| The roof covering (tile, shingles, foam) | Shows how much weather protection remains | Permit, invoice, warranty, or an inspection estimate |
| The underlayment beneath tile | Often wears out long before the tile does | Permit, invoice, or a roofer who inspects it |
| The coating on a foam roof | Sets the recoat schedule instead of a replacement date | Recoat invoice or measured coating thickness |
Lyons Roofing’s guide to how long roofs last in Arizona lists tile at 40 to 50 years and puts underlayment on a much shorter schedule, which is why the age of the underlayment matters as much as the age of the tile.
Why a Roof’s Age Is Hard to Find
Roof dates scatter across several records, and none of them is complete. These are the usual gaps:
- The assessor dates the house: The Maricopa County Assessor’s residential data layout lists a construction year, a roof material, and a roof style for each home, and it has no field for when the roof went on.
- Same-material re-roofs may skip permits: Phoenix and Tucson both exempt certain like-for-like roof replacements, so no permit on file does not prove the roof is original.
- Records vary by age and city: Each city keeps its own permit system, and older files may sit in a separate records department.
- Owners change and paperwork gets lost: Invoices, warranties, and disclosures rarely travel with a home through every sale.
- Aerial photos show only a window: Historical images exist for certain dates only, so they bracket a replacement instead of pinning down the day.
Because each source has a blind spot, the six methods below work best in combination.
Six Ways to Find Your Roof’s Age
These methods work in Phoenix, Tucson, and the surrounding communities. Start at the top and stop when you have a date you can back with a record.
| Method | What It Can Tell You | Main Limit |
|---|---|---|
| 1. County assessor lookup | The home’s construction year, which caps the roof’s age | Dates the house, not the roof |
| 2. Permit records | An issue date and the contractor on a re-roof permit | Same-material re-roofs may not need a permit |
| 3. Paperwork and neighbors | Invoices, warranties, disclosures, and inspection reports | Records get lost when owners change |
| 4. Aerial photo history | A window between two photo dates when the roof changed | Image dates and coverage vary |
| 5. Roof clues | Material wear and manufacturer stamps | Gives a range, not an exact date |
| 6. Professional inspection | A written material type, estimated age, and condition | Needs a roofer on site |
Step 1: Look Up the Home’s Construction Year at the County Assessor
Both major county assessors let you search by address. The Maricopa County Assessor’s search help explains that you can search by address or by parcel number, and Pima County’s Assessor parcel search guide says the parcel search works by parcel code, property owner, or property address.
The construction year works as a ceiling. If the home went up in 1996, the roof cannot be older than 1996, and it may be much newer. Treat the year as an estimate, because the City of Tucson’s parcel construction-year map layer explains that it draws on Pima County Assessor records and only approximates a property’s date of construction.
Step 2: Search City and County Permit Records for a Roofing Permit
A roofing permit gives you the strongest paper date. Phoenix lets you search by address in its PDD Online permit search, where results list the permit type and number, issue date, status, and the professional on the permit, and building permits show their inspection history. The search accepts a wildcard character in the number and street fields, which helps when an address was recorded differently. If a result shows the status SHAP, that permit has moved to the city’s new SHAPE PHX application.
Tucson’s Property Research Online tool searches by address or Assessor Parcel Number, and the city says permits and documents approved and issued after 2009 are available there. The Records department covers older files, and the city reports plans and construction documents for many buildings inside city limits dating back to the 1950s. For homes in unincorporated Pima County, the county’s records search links a portal for permits, project records, and inspections, plus a request form for residential building records. Other Valley cities keep their own permit records, so start with your city’s building department.
- Search the street address first: Try the parcel number if the address returns nothing.
- Scan the work description: Look for words such as re-roof, roof replacement, tear-off, or tile.
- Record the details: Write down the issue date, the contractor’s name, and the permit number, and keep a copy with your home records.
A missing roofing permit does not prove the roof is original. Phoenix’s residential permit guide lists re-shingling or re-tiling a roof with the same material among work that does not need a permit, and it requires one for work such as roofline extensions or replacing wood or asphalt shingles with a tile roof. Tucson’s permit exemptions page says replacing roofing with the same type of material, such as shingles for shingles or tile for tile, does not require a permit when the job involves no structural work and the property sits outside a Historic Preservation Zone. Structural roof work, including sheathing, decking, joists, or trusses, does require one. Rules change, so confirm current requirements with the city before you rely on an exemption.
Step 3: Gather the Paper Trail
AAA’s roof age guide points to seller disclosures, inspection reports, warranty paperwork, and closing documents as places where an installation date may survive. It also suggests asking previous owners and neighbors, since nearby homes may have been roofed at similar times.
- Roofing invoice or contract: It shows the date, the material, and the scope of work.
- Warranty paperwork: A manufacturer or contractor warranty can list an installation date.
- Your home inspection report: The report from your purchase may describe the roof’s material and condition.
- Seller disclosure and closing documents: These can hold a replacement date.
- HOA records: If your community reviews roof replacements, ask whether it keeps approval records.
If you bought the home recently, start with your inspection report. Our post on what to do when a home inspection finds roof problems covers the next moves.
Step 4: Compare Aerial Photos in Google Earth Pro
Google Earth Pro keeps older satellite and aerial images, so you can watch your roof change over the years. The Google News Initiative training on historical imagery describes the tool: a clock icon opens a time slider that shows a notch for every image available for that view, and the date of each image appears in the slider.
- Open Google Earth Pro and search for your address.
- Click the clock icon to open the time slider.
- Drag the slider back one image at a time and watch the roof.
- Note the date of the last image that shows the old roof and the first that shows the new one.
Look for a clear change in roof color, texture, or pattern, such as a gray foam roof turning white after a recoat or a shingle roof giving way to tile. The change dates the work to a window, not a day. Google notes that coverage and availability of images vary by location, so some addresses show only a few dates.
Step 5: Read the Roof Itself
The roof keeps clues. The AAA guide notes that vent boots and flashing sometimes carry manufacturer stamps. A stamp will not give an exact install date, but it can help estimate when the roof was last worked on, and wear patterns, granule loss, and cracking show how far along the material is.
- Shingles: Missing or cracked pieces, granule loss, and cracking point to an older surface.
- Tile: Lyons points out that the tiles are not the waterproofing layer, the underlayment beneath them is. Leaks or attic staining while the tile looks sound often trace to aging underlayment or separated flashing, as our post on tile roofs that leak while the tiles look intact explains.
- Foam: A white roof that has turned gray, orange, or chalky has an aging coating, and Lyons sets recoat timing by measured coating thickness instead of a fixed calendar interval. Our residential foam roof repair covers the options.
- Attic: Discolored, warped, or broken timber and a musty smell after rain suggest past leaks, and our guide to spotting roof damage from inside your attic shows what to look for.
Do your looking from the ground, a window, or the attic. NRCA does not recommend that homeowners walk on roofs, and our own guidance on tile is to avoid it when you can.
Step 6: Ask a Roofer for a Written Age Estimate
A roofer reads material type, wear, flashing, and repair history together, which no single record does. A Lyons Roofing residential roof inspection evaluates all visible surface material across the full roof field, tests flashing adhesion at chimney bases and skylight perimeters, and checks the attic for moisture staining on decking and rafters where the attic allows access. The written report describes the roofing material type and estimated age and includes photographs.
Buyers can request a pre-purchase inspection. Lyons describes it as an independent assessment of roof condition and remaining service life before you complete a real estate transaction, and you can ask for a real estate formatted report when you schedule. A residential drone roof inspection captures surface conditions without crew foot traffic that could crack tile, and our post on what to expect from a roofing inspection walks through the visit.
Need Your Roof Age in Writing?
Free Inspection | Estimated Roof Age | AZ ROC# 348074 | Call 602-638-3135 (Phoenix) or 520-900-1442 (Tucson)
What Your Roof’s Age Means in Arizona
Once you have an age, compare it with the expected life of that roofing system. The table uses ranges from Lyons Roofing’s Arizona guides.
| Roofing System | Typical Life per Lyons Guides | What to Check at That Age |
|---|---|---|
| Clay tile | 40 to 50+ years | Cracked or slipped tile, flashing, and the underlayment beneath |
| Concrete tile | 40 to 50 years | Cracked or slipped tile, flashing, and the underlayment beneath |
| Felt underlayment under tile | 12 to 20 years in the lifespan guide, 20 to 30 years in the tile roof guides | Leaks or attic staining while the tile looks sound |
| Shingles | 20 to 50 years, depending on shingle quality | Missing, cracked, or worn shingles and flashing |
| Foam flat roof | 25 to 35 years | Coating condition, blisters, and soft spots |
| Foam coating | Recoat typically every 5 to 10 years in Arizona | Chalking, color change, and measured thickness |
The published ranges for underlayment run from 12 to 30 years, which is why the actual material and its condition matter more than the calendar. Age sets expectations, and condition decides what happens next. A written inspection turns the date into a plan.
What to Do Once You Know the Age
| What You Found | What It Suggests | Sensible Next Step |
|---|---|---|
| An original roof on a home from the 1980s or 1990s | Tile may be sound while the underlayment has reached or passed its expected life, and shingles or foam coatings may be near the end of theirs | Book an inspection that checks underlayment, flashing, and coating condition |
| A permit or invoice shows a re-roof years ago | You have a documented starting point | Store the permit, invoice, and warranty together and keep up routine maintenance |
| No permit found | The roof may be original, or a same-material re-roof may not have needed a permit | Compare aerial photos and ask a roofer to estimate the age |
| You are buying a home | The seller’s paperwork may not cover the roof | Request a pre-purchase roof inspection with a real estate formatted report |
| Leaks or stains on an older roof | Age and condition may both be working against the roof | Request an inspection soon, and call for emergency service if water is entering |
Routine upkeep through residential roof maintenance catches small problems early. If an inspection shows the system has reached the end of its service life, our team can walk you through residential roof replacement, and for tile roofs with failing underlayment our residential tile roof repairs team can explain the options.
DIY vs. Professional: Who Can Find What
| Task | Homeowner | Professional Roofer |
|---|---|---|
| Assessor and permit lookups | Yes, from home using the portals above | Yes, and reads the permit scope against what is on the roof |
| Aerial photo comparison | Yes, in Google Earth Pro | Yes, plus close-up documentation |
| Reading vent boot stamps and wear | From the ground or a window only | Up close, with safe roof access or drone imagery |
| Judging underlayment under tile | Not from the surface, since the underlayment sits beneath the tile | Yes, through close inspection and evidence such as leaks or attic staining |
| Estimating remaining service life | A rough guess from age alone | Yes, from material, condition, flashing, and attic evidence in a written report |
Keep your feet off the surface when you can. Our guide to walking on a concrete tile roof without damaging it says we do not recommend walking on concrete tile if you can avoid it, and it explains where to step when access is unavoidable.
What Phoenix and Tucson Conditions Mean for Roof Age
Older housing stock makes this question common across the Valley. A recent NAHB analysis of 2024 American Community Survey data, reported in April 2026, found these median construction years, and the reporting says homes from the 1980s through the early 2000s are reaching the point where major systems, including roofs, need repair or replacement.
| City | Median Year Built |
|---|---|
| Phoenix | 1984 |
| Tempe | 1984 |
| Mesa | 1989 |
| Scottsdale | 1991 |
| Chandler | 1997 |
| Gilbert | 2003 |
Climate works on every layer of the roof. Phoenix averaged 111 days a year at or above 100 degrees from 1991 to 2020, and summer 2026 ranked as the second hottest on record in Phoenix, averaging 97 degrees. The 2026 monsoon gave Sky Harbor 2.48 inches against a 2.43-inch normal, and NWS normals show Tucson receiving about 5.5 of its roughly 10.6 inches of annual rain in July through September, per the Tucson monthly normals.
Heat and storms leave two roofs of the same age at different points in their service lives. A roof that sheds monsoon water cleanly and has had regular maintenance reads differently from one with open flashing and worn underlayment. That is why Lyons pairs every age estimate with a written condition report.
Why Arizona Homeowners Choose Lyons Roofing
| What We Offer | What It Means for Your Roof Age Question |
|---|---|
| A+ BBB Ethics Award, Phoenix roofing office | BBB Ethics Award winner, A+ rated, independently verifying honest, professional service |
| A+ BBB Ethics Award, Tucson roofing office | Both Arizona locations hold active A+ BBB accreditation and Ethics Award recognition |
| Top-rated Phoenix Angi profile, Repeated Super Service Award | Super Service Award recognition across the Phoenix metro for consistently high-quality roofing |
| Top-rated Tucson Angi profile, Repeated Super Service Award | Award-winning service recognition across both our Phoenix and Tucson roofing markets |
| Phoenix Google reviews, thousands of verified 5-star ratings | Among the most-reviewed roofing contractors in Arizona based on verified customer feedback |
| Tucson Google reviews, verified 5-star ratings | Consistent 5-star feedback from homeowners in both Arizona markets |
| ARCA member in good standing | Compliant with ARCA standards for installation, safety, and professional roofing conduct in Arizona |
| GreenSky financing available | Flexible financing options for property owners managing roofing project budgets |
| Licensed Under AZ ROC# 348074 | State-verified license, active and in good standing, verifiable at roc.az.gov |
| Fully Bonded and Insured (GL + Workers Comp) | Zero liability exposure for property owners, every project fully covered |
| In Business Since 1993, 30+ Years | Three decades of experience with Arizona roofing systems in extreme desert conditions |
| Manufacturer Certified Installers | Work performed to manufacturer specifications, helping protect material warranties |
| Free Inspections and Written Assessments | A free inspection with a written report that states the material type and an estimated roof age |
| 24/7 Emergency Response | Available any time for roofing emergencies throughout our Arizona service area |
Frequently Asked Questions: Finding Your Roof Age in Arizona
How can I find out how old my roof is?
Six methods work in Arizona: look up the home’s construction year at the county assessor, search city or county permit records, gather invoices and warranties, compare historical aerial photos, read clues on the roof itself, and ask a roofer for a written age estimate. Two methods that agree give you a date you can trust.
Does the county assessor show how old my roof is?
Not directly. The Maricopa County Assessor’s residential data layout lists a construction year, a roof material, and a roof style, and it has no field for the roof installation date. The construction year dates the house, so it sets the oldest the roof could be.
How do I look up roofing permits for a Phoenix home?
The City of Phoenix PDD Online permit search accepts a street address, and a wildcard character helps when the number or street was recorded differently. Results show the permit type and number, the issue date, the status, and the professional on the permit. If a status reads SHAP, the permit has moved to the city’s SHAPE PHX application.
How do I find permit history for a Tucson home?
Use the City of Tucson’s Property Research Online tool and search by address or Assessor Parcel Number. The city says permits and documents approved and issued after 2009 are available there, and its Records department covers older files, with plans for many buildings dating back to the 1950s. Homes in unincorporated Pima County use the county’s records search.
What if I cannot find a permit for my roof?
Do not assume the roof is original. Phoenix and Tucson both exempt certain like-for-like roof replacements from permits, and records can be missing or filed under a different address. Compare aerial photos, check your paperwork, and ask a roofer to estimate the age.
Does every re-roof need a permit in Phoenix or Tucson?
No. Phoenix lists re-shingling or re-tiling a roof with the same material among work that does not need a permit, but it requires one for work such as roofline extensions or replacing wood or asphalt shingles with a tile roof. Tucson exempts replacing roofing with the same type of material when the job involves no structural work and the property sits outside a Historic Preservation Zone, and it requires a permit for structural roof work.
How do I tell how old a tile roof is?
Separate the tile from the underlayment. Lyons Roofing lists tile at 40 to 50 years, while its guides put felt underlayment between 12 and 30 years, so the tile can be original while the layer beneath it has been replaced or needs attention. Permits, invoices, and a roofer’s inspection of the underlayment tell you more than the look of the tile.
Can Google Earth show when my roof was replaced?
It can narrow the date. The time slider in Google Earth Pro shows older images with the date of each one, so a visible change in roof color or texture between two images brackets the work. Coverage varies by location, so some addresses show only a few dates.
What are vent boot stamps and how do they help?
Vent boots and flashing sometimes carry manufacturer stamps. AAA notes that these will not give an exact install date but can help estimate when the roof was last worked on. A roofer can read them safely during an inspection.
How old are homes in the Phoenix area, and what does that mean for roofs?
An NAHB analysis of 2024 census survey data put the median home in Phoenix at 1984, Tempe at 1984, Mesa at 1989, Scottsdale at 1991, Chandler at 1997, and Gilbert at 2003. The reporting says homes from the 1980s through the early 2000s are reaching the point where major systems, including roofs, need repair or replacement. Use the median as context only and check your own address.
Should I ask the seller how old the roof is when buying a home?
Yes. Seller disclosures, inspection reports, and closing documents may show the install or replacement date. Because paperwork can be incomplete, Lyons Roofing also offers a pre-purchase roof inspection that gives an independent assessment of roof condition and remaining service life.
How does a roofer estimate roof age?
A roofer evaluates the roofing material type and the visible surface condition across the full roof, tests flashing, and checks the attic for moisture staining where the attic allows access. The Lyons Roofing inspection report includes a description of the roofing material type and an estimated age.
Does roof age decide whether I need a repair or a replacement?
Age sets expectations, and condition decides the answer. Lyons Roofing lists tile at 40 to 50 years, shingles at 20 to 50 years depending on shingle quality, and foam flat roofs at 25 to 35 years, so a written inspection that compares age with condition gives the better answer.
Is it safe to climb on my roof to look for clues?
It is better not to. NRCA does not recommend that homeowners walk on roofs, and Lyons Roofing advises against walking on concrete tile when you can avoid it. Look from the ground or a window, check the attic, or ask for a drone-assisted inspection.
How do I schedule a roof inspection with Lyons Roofing?
Request a free inspection through the Lyons Roofing website. Our team inspects roofs throughout Phoenix, Tucson, and the surrounding communities, and every inspection includes a written condition report with photographs and no obligation.
When to Call Lyons Roofing
Call when your records leave gaps, when you are buying or selling a home, or when an older roof shows missing pieces, color change, or stains. Lyons inspects tile, shingle, foam, and flat roofs across Phoenix, Tucson, and the surrounding communities, documents each roof with photographs, and states the material type and estimated age in writing. You can verify our license with the Arizona Registrar of Contractors, and if water is coming in now, our emergency roof service responds any time, day or night, at 602-638-3135 (Phoenix) or 520-900-1442 (Tucson).
Request a Free Roof Age Inspection
AZ ROC# 348074 | Bonded and Insured | 24/7 Service | Call 602-638-3135 (Phoenix) or 520-900-1442 (Tucson)