Tempe, Arizona
Roof rejuvenation in Tempe
No big city in the Valley has a higher share of shingle roofs than Tempe: 63% of its single-family homes, about 18,900 in all, most of them built in the 1960s and 1970s. ShingleGuard’s bio-based treatment is designed to replace the oils those shingles lose to the sun, so a qualifying roof can keep doing its job instead of being torn off early.
Tempe is a shingle-roof city
Most of these roofs sit on homes that have been through decades of Arizona summers. County records show how many homes could benefit from keeping their shingles flexible longer.
30,000+
single-family homes with a Tempe address
63%
have asphalt shingle roofs, about 18,900 homes
99%
of those homes were built more than 30 years ago
1 in 3
is owned by someone with a different mailing address, such as a landlord
Source: Maricopa County Assessor residential property records, October 2026. Counts are homes with that city in their mailing address. Roof material reflects county records and may not show recent re-roofs.
Built as Tempe grew south
Three in four of Tempe’s shingle-roof homes went up in the 1960s and 1970s, as the city spread south from downtown and the university. ZIP code 85282 alone has about 8,200 of them. In 85284, Tempe’s newest corner, only 7% of homes have shingles.
Homes that age are on their second or third roof, so the shingles may be far younger than the house. A free assessment looks at the shingles you have now: how flexible they are, how well the granules are holding, and whether the roof is still sound.
- 1950s or earlier13%
- 1960s31%
- 1970s45%
- 1980s10%
- 1990 or later1%
Single-family homes with asphalt shingle roofs, by year built. Maricopa County Assessor, Oct 2026.
What Tempe does to asphalt shingles
Every asphalt roof ages. Here, it happens faster.
More than 100 days a year at 100°F or hotter
A typical Valley summer brings more than 100 days at 100°F or above. Heat drives the oils out of asphalt shingles, so they dry out, stiffen and start to shed granules.
Strong sun, winter included
Sunlight breaks down asphalt at the surface, and in the desert it shines nearly every day of the year. The granules on a shingle are its sunscreen. As they wear away, the asphalt underneath ages faster.
Monsoon season, June 15 to September 30
Summer storms bring sudden wind, dust and heavy rain. Shingles that have gone brittle are the ones most likely to crack, lift or shed granules when a storm comes through.
Rejuvenation fits some roofs, not all
We’ll tell you honestly after a free assessment. Here’s a quick way to gauge your Tempe home before we visit.
Usually a good fit
- An asphalt shingle roof on a single-family home, the most common kind in Tempe
- Shingles that look faded, dry or chalky, or granules collecting in gutters and at downspouts
- A roof that is aging but still sound, with no active leaks
- You want to put off the cost and hassle of a full replacement
Usually not a fit
- Tile roofs (more common in south Tempe), metal, foam or flat roofs
- Active leaks, soft decking or water stains on the ceiling
- Many missing, torn or badly curled shingles
What a new roof costs in Tempe
A typical Tempe shingle-roof home has about 2,200 sq ft of roof, so replacing it runs roughly $9,000 to $15,500 in 2026.
The typical Tempe shingle-roof home has about 1,650 sq ft of living space, and nearly one in three parks under a carport. About one in three of these homes is owned by someone who lives elsewhere, often a landlord, and for a rental, putting off a five-figure roof bill can matter as much as the price itself.
If your roof is aging but still sound, rejuvenating it runs about $2,200 to $2,750, tune-up included, and can put that bill off.
- Typical shingle-roof home
- 1,650 sq ft
- plus a 400 sq ft garage or carport
- Estimated roof size
- 2,200 sq ft
- half of homes: 1,800–2,550 sq ft
- New asphalt shingle roof
- $9,000–$15,500
- at $4–$7 per sq ft installed
- Rejuvenating the same roof
- $2,200–$2,750
- at $1.00–$1.25 per sq ft, tune-up included
A simple, three-step process
- 1
Free roof assessment
We inspect your shingles up close, checking flexibility, granule coverage and any damage, then tell you honestly whether rejuvenation makes sense.
- 2
Protect & tune up
On treatment day we protect landscaping, pools and surfaces, then tune up the roof: Perma-Boot covers on the vent pipes, a few replacement shingles, resealed vents and flashing, and clean gutters.
- 3
Rejuvenate
We apply our bio-based treatment evenly across the shingles, where it is absorbed into the asphalt to replace oils lost to age, sun and heat. It's typically dry within about an hour.
A treatment with real credentials
We chose our rejuvenation treatment because it's backed by certification, independent testing and published research, not just marketing.
USDA Certified Biobased
Certified through the USDA BioPreferred program, with 96% biobased content from renewable sources rather than petroleum.
Patented formula
Protected by a U.S. patent issued in 2025 for treatments that improve aged, brittle asphalt binders.
Independently lab-tested
Tested by an independent asphalt testing laboratory in 2020, 2021 and 2024, showing improved shingle flexibility and better granule adhesion.
Untreated shingles shed nearly 2x the granules
In independent lab testing on 13-year-old shingles, untreated shingles lost 13.2% of their granules, nearly twice the 7–8% lost by treated shingles.
Class A fire rating maintained
In independent ASTM E108 fire testing, treated roofs kept their Class A fire rating, and flame spread was slightly reduced.
University research, peer-reviewed
Developed from Iowa State University research, with results published in a peer-reviewed asphalt technology journal in 2025.
Bonds with aged asphalt
University lab analysis showed the treatment chemically reacts with aged asphalt, rather than just softening it the way a plain oil does.
Flexibility restored to nearly new
In Iowa State University testing, treatment brought shingles from roofs more than 15 years old back to nearly new flexibility.
Clean runoff, near-zero VOCs
Water-based with no odor. Independent testing measured just 0.02% VOCs and found no detectable PAHs or PCBs in rain runoff from treated shingles.
Results on any individual roof vary with its age and condition.
See the full lab resultsServing all of Tempe
Free roof assessments anywhere in Tempe and across the Greater Phoenix Valley.
- Downtown Tempe
- North Tempe
- Maple-Ash
- Mitchell Park
- The Lakes
- South Tempe
- Warner Ranch
Where Tempe’s shingle roofs are
The Tempe ZIP codes with the most single-family homes under an asphalt shingle roof. We serve every one of them, and the rest of the city too.
| ZIP code | Homes with shingle roofs | Share of homes |
|---|---|---|
| 85282 | 8,200 | 80% |
| 85283 | 5,700 | 68% |
| 85281 | 3,000 | 85% |
| 85284 | 440 | 7% |
Share of homes = single-family homes in the ZIP code with an asphalt shingle roof. Maricopa County Assessor, Oct 2026.
Yes. About one in three Tempe shingle-roof homes has an owner with a different mailing address, often a landlord, and a treatment can help a landlord put off the cost of a new roof. We’ll coordinate timing with you or your property manager, and we ask that tenants and pets stay clear until the roof is dry.
Probably not, because the roof is much younger than the house. Shingles don’t last 60 years, so homes that age have been re-roofed at least once. What matters is the shingles on it today, and our free assessment checks their flexibility, granule coverage and overall soundness before we recommend anything.
The treatment is water-based with no odor, and it’s designed for safe use around homes. In independent testing, rain runoff from treated shingles showed no detectable PAHs or PCBs. We just ask that people and pets stay clear until it dries. In warm, dry weather it is typically dry to the touch in about 30 minutes, ready for foot traffic in about an hour, and fully cured within 1 to 2 hours in warm, dry weather.
Yes. We serve all of Tempe, from downtown and Maple-Ash to The Lakes and south Tempe, plus the rest of the Phoenix Valley. Call or text 480-283-4560 to schedule a free assessment.