Roof rejuvenation · ShingleLock
Roof rejuvenation in Kalamazoo & Grand Rapids
01 · Why West Michigan shingles age early
It's the combination that does the damage
A homeowner in Portage already knows what the winters are like. What's less obvious is what they do to asphalt. A cold-dry or hot-dry climate is easier on shingles than this one. Here, summer bakes the oils out and winter cracks what's left, and Grand Rapids has recorded seasons as heavy as 110 inches of snow in the last decade.
80–90
Freeze-thaw cycles every winter
NOAA daily records, 2014–2025: Grand Rapids averages 84 a season, Kalamazoo 83. Bad winters exceed 100.
80–95"
Lake-effect snow through the snowbelt
Bloomingdale averages 95.4 inches, Muskegon 93.7, Grand Rapids 74.9. Detroit gets 45. (NOAA 1991–2020 Normals)
~28
Damaging wind events a year
Across the six counties, plus 1-inch-plus hail 56 times in 11 years. (NOAA Storm Events, 2015–2025)
38–48
Days a year above 85°F
Summer UV and heat bake the oils out. Winter freeze-thaw cracks what's left.
02 · What ShingleLock is
Soybean oil,engineered for asphalt.
ShingleLock is a water-based emulsion of chemically modified soybean oil, made specifically for asphalt shingles. It's mixed two parts water to one part concentrate. Once sprayed, the water evaporates and leaves the concentrate to absorb into the shingle, replacing the petrochemicals that sun and heat have pulled out.
It isn't a coating. Nothing sits on the surface. Biodegradable, pH-neutral and odourless.
| Test | ShingleLock-treated result |
|---|---|
| Granule adhesion | 56% better on end-of-life shingles |
| Tear strength | 25% higher |
| Cold pliability | PASS. Untreated shingles failed |
| VOC emissions | 0.02% |
| PCB leachate | None detected |
Independent third-party laboratory testing, treated vs. untreated aged shingles. Full report available on request.
03 · Does your roof qualify?
The best candidates
- Asphalt shingle roof
- Roughly 5–20 years old, showing early aging
- Sound: no active leaks or structural damage
- Applied in dry conditions above 41°F (5°C)
04 · The process
Four steps, one day
01
Free assessment
We inspect your roof and confirm it's a good candidate. If it isn't, we say so.
02
Application
ShingleLock is sprayed evenly over every slope. Most homes are done in a day.
03
Absorption
It soaks in within about an hour. After that, rain won't wash it away.
04
Guarantee
Every treatment carries a 6-year guarantee. Reapply to keep going.
Every ShingleLock treatment carries a 6-year guarantee in writing. After the treatment you get a written completion report and before-and-after photos.
05 · Rejuvenation FAQ
What West Michigan homeowners ask us
Still unsure? The free assessment answers the rest, on your roof.
Book Your Free Roof AssessmentOne roof. Three options.One honest answer.
Rejuvenation, replacement and repair across Kalamazoo, Portage, Grand Rapids, Kentwood, Mattawan, Holland, South Haven and the Lakeshore.