ROOF REJUVENATION
SAVE YOUR MONEY. SAVE YOUR ROOF.
What is Roof Rejuvenation?
As shingles age, their natural oils diminish, leading to the loss of granules, shrinking, cracking, and eventual shingle failure. Roof Rejuvenation increases shingle flexibility and improves granular adhesion to extend the overall lifespan, while saving homeowners up to 85% of the cost to replace their shingles. This cost-effective solution helps homeowners save money, extend the lifespan of your roof, and enhance curb appeal. Don’t replace, Rejuvenate!
The Solution
Roof Rejuvenation
- Restores essential oils and extends the lifespan of your roof
- Increases flexibility, colour, and granule adhesion
- Improves resistance to wind and hail
The Problem
Age, UV Rays, Weather
- Over time, shingles lose their natural oils
- Causing them to dry out, lose granules, shrink, and crack
- Leads to leaks, shingle failure, and premature roof replacement
Benefits of Roof Rejuvenation
Extended Lifespan
A single treatment can add 5-10 years to your roof’s life, delaying costly replacements. A 5-year prorated, transferable warranty is standard.
Cost Savings
Roof Rejuvenation can save homeowners up to 85% the cost of a new roof.
Improved Appearance
Rejuvenated shingles regain much of their original look and reduce algae staining, boosting your home’s curb appeal.
Environmental Impact
Roof Rejuvenation is a bio-based, eco-friendly product. It also delays replacement, which means fewer roofs in landfills and a more sustainable solution for homeowners and the planet.
How We Do It: 3 Simple Steps

Assessment
We perform a detailed inspection and provide a report on your roof's current condition detailing if your roof would benefit from a treatment.

Maintenance
Before treating, we perform a tune-up to prepare your roof with focus on nail pops and flashings, the most leak-prone areas of your roof.

Application
The application is quick, clean, and safe. The spray replaces lost oils and locks in granules. The treatment dries in hours and can add five years of life per treatment.
Your Questions, Answered
How does roof rejuvenation work?
Asphalt shingles dry out and become brittle as they age. Roof rejuvenation treatment penetrates the shingles, restoring their flexibility and helping them repel water more effectively. This can slow down aging and extend the life of your roof.
How much life can it add to my roof?
A single treatment can add 5 to 10 years of life to your existing roof, depending on roof age, climate, and maintenance habits.
Each roof rejuvenation treatment is warrantied for 5 years.
How do I know if my roof is a good candidate?
Most asphalt roofs begin to show signs of drying out between 5 to 10 years of age, depending on sun exposure and weather conditions.
As shingles age, they lose the essential oils that help hold the protective granules in place. When this happens, you may start to notice granules collecting in your gutters, along with other signs like fading, brittleness, or slightly worn edges.
If your roof is between 5 to 20 years old and still structurally sound, this is typically the ideal window to treat it before more significant wear or damage occurs.
We always perform a thorough inspection to confirm if rejuvenation is the right solution for your roof.
Is roof rejuvenation better than a roof replacement?
Roof rejuvenation costs a fraction of a full roof replacement (often 70–85% less) making it a great option for extending roof life on a budget.
Roof rejuvenation cannot be applied to all roofs. If your roof has major damage, leaks, or missing shingles, a full replacement may be necessary.
Is the application safe?
Yes. The product is made from a 96% USDA-certified bio-based oil. It is non-toxic, eco-friendly, and safe for people, pets, and plants.
We also take additional precautions during application to ensure everything around your home is protected.
How long does the application process take?
Most roofs can be treated in approximately 2-3 hours, depending on the size and complexity of the roof.
You may begin to notice early results (such as a richer colour and improved shingle condition) within a few hours as the oils start to penetrate. Full results, including optimal absorption and performance, are typically achieved within 24–72 hours.
Will it change the look of my roof?
Yes! Your roof will typically have a darker, refreshed “like-new” appearance immediately after treatment. This is because the natural oils re-saturate the shingles, restoring depth of colour that fades as roofs age.
Over time (approximately 1–2 years), the colour will soften slightly as part of the natural weathering process, while the protective benefits of the treatment remain.
Most asphalt shingles lighten as they dry out. Rejuvenation reverses that process by restoring lost oils, bringing your roof closer to its original colour, improving curb appeal while also extending its lifespan.
What is the warranty period?
The manufacturer offers a standard 5-year prorated warranty on roof rejuvenation service, which is fully transferable to a new homeowner.
What are the weather requirements?
Application requires temperatures above 5°C for proper absorption and performance.
Once applied, the treatment penetrates the shingles quickly, typically within about an hour, beginning the rejuvenation process. After this initial absorption period, there is no concern about the product being washed away by rain.
We always monitor weather conditions closely to ensure your roof is treated under the right conditions for the best possible results.
What is the science behind it?
Agricultural oils have been used for nearly two decades to extend the life of asphalt-based surfaces, including roadways. These oils help maintain flexibility, preventing the brittleness that leads to cracking, deterioration, and premature failure.
Roof rejuvenation applies this same proven concept to asphalt shingles. As shingles age, they lose the essential oils that keep them flexible and help hold protective granules in place. Reintroducing these oils helps restore flexibility, improve granule adhesion, and slow the aging process.
Independent testing by PRI Asphalt Technologies comparing treated vs. untreated shingles has shown the following measurable improvements in performance and longevity:
- Granular adhesion improved by 53%
- Flexibility improved from “fail” to “pass”
- Hail impact was improved
- Fire resistance improved by 40%
What is it a sustainable option?
In Canada alone, up to 1.25 million tonnes of asphalt roofing waste are generated every year. Due to the cost and complexity of recycling, the majority of these shingles end up in landfills.
Roof rejuvenation helps reduce this waste by extending the life of your existing shingles, delaying the need for replacement, and keeping usable materials out of landfills, while also saving you the cost of replacing your roof prematurely.
Who is this service meant for?
Roof rejuvenation is a smart, preventative solution for a wide range of homeowners and professionals looking to protect and extend the life of asphalt shingle roofs.
It’s an excellent option for homeowners who want to maintain their roof, avoid premature replacement, and save on long-term costs. With a transferable warranty, it’s also a great choice if you’re planning to sell, helping boost curb appeal and add value without the expense of a full replacement.
This service is ideal for environmentally conscious homeowners, as it uses a bio-based product and helps reduce landfill waste by extending the life of existing shingles.
It’s also a valuable solution for property managers looking to protect their assets, and for realtors seeking cost-effective ways to enhance a home’s marketability.
In today’s economy, where cost savings matter more than ever, roof rejuvenation offers a practical, forward-thinking alternative to early roof replacement.
Why Choose Guaranteed Roofing?
With over 30 years as a leader in the roofing industry, we have the expertise to assess and improve your entire roofing system – protecting your home from the top down.
Family-Owned Since 1994
Roofing System Expertise
Honest Advice, No Gimmicks
Fully Insured & Award-Winning
The Future of Roof Maintenance
As the roofing industry evolves, Roof Rejuvenation is becoming a go-to solution for proactive homeowners, property managers, and contractors. With the potential for significant cost savings, reduced insurance claims, and environmental benefits, this innovative process is set to reshape the way we think about roof maintenance.