Skip to content
VitalRoofs

Roofing resources

Roofing guides for homeowners with an aging asphalt roof

Short answerThese guides explain how asphalt shingles age, what roof replacement actually costs and why, when rejuvenation is a legitimate option, and when it is not. Written to help you evaluate any roofer's recommendation — including ours.

Recently published

Roof rejuvenation

Roof Rejuvenation Pros and Cons

Roof rejuvenation has genuine advantages and genuine limitations. Here's both sides, laid out plainly, without inflating the benefits or hiding the drawbacks.

Roof rejuvenation··4 min read

Can You Extend the Life of a 15- or 20-Year-Old Asphalt Roof?

A 15- or 20-year-old asphalt roof isn't automatically a lost cause, but it isn't automatically a rejuvenation candidate either. Here's what actually determines the answer.

Roof rejuvenation··4 min read

When Is a Roof Too Old for Roof Rejuvenation?

There's no age cutoff where a roof automatically becomes too old for rejuvenation. What actually determines eligibility is the roof's condition, not the number of years since it was installed.

Roof rejuvenation··4 min read

7 Signs Your Roof May Be a Candidate for Roof Rejuvenation

Not every aging roof needs full replacement. Here are seven signs that a roof may be a reasonable candidate for rejuvenation, and why an inspection is still the only way to confirm it.

Roof rejuvenation··5 min read

Does Roof Rejuvenation Really Work?

Roof rejuvenation does real, specific things for the right roof. It also has real limits. Here's an honest look at both sides.

Roof rejuvenation··5 min read

How Much Does Roof Rejuvenation Cost?

Roof rejuvenation is priced by square footage, complexity, and condition, not a flat rate. Here's what goes into the number and why an inspection comes first.

Roof rejuvenation··4 min read

Roof maintenance

Black Streaks on Your Roof: What Causes Them?

Dark streaks running down asphalt shingles are almost always algae, not soot or mold. Here's how it forms, what it does and doesn't damage, and how cleaning options compare.

Roof maintenance··6 min read

Roof Soft Washing vs. Roof Rejuvenation: What Is the Difference?

Soft washing and roof rejuvenation are often mentioned in the same breath, but they solve completely different problems. One cleans the surface. The other treats the asphalt itself.

Roof maintenance··4 min read

Should You Remove Moss Before Roof Rejuvenation?

Moss and heavy biological growth sit between a rejuvenation treatment and the shingle surface it needs to reach. Here's why cleaning generally comes first, and why the order matters.

Roof maintenance··4 min read

Can Moss Damage an Asphalt Shingle Roof?

Moss on a roof isn't just cosmetic. Given enough time and moisture, it can lift shingles, trap water against the surface, and accelerate wear. Here's how it actually causes damage.

Roof maintenance··4 min read

What Happens to Asphalt Shingles as They Age?

Asphalt shingles don't fail all at once. They go through a slow, predictable aging process driven by sun, heat, and moisture. Here's what's actually happening underneath the surface.

Roof maintenance··5 min read

What to Do If Your Roof Is Leaking: A Step-by-Step Guide

Contain the water, protect your belongings, document everything, and get the source diagnosed. Here's the order to do it in, and what not to do.

Roof maintenance··3 min read

Why Are Granules Coming Off My Roof Shingles?

Finding granules in your gutters isn't automatically a bad sign. It depends on how much, where it's coming from, and what the shingles look like up close.

Roof maintenance··5 min read

Frequently asked roofing questions

What is roof rejuvenation?

Roof rejuvenation is a maintenance treatment applied to an existing asphalt shingle roof. It is intended to address the drying and stiffening that happens as shingles age, helping the shingles retain flexibility. It is not a repair method, a coating, or a replacement for structural roofing work.

How is rejuvenation different from a roof coating?

A coating adds a new surface layer on top of the roof and changes its appearance and weight. Rejuvenation is absorbed into the existing shingle rather than forming a separate film over it, and it does not change the roof to a coated system.

How long does the application take?

Most single-family asphalt roofs in our service area are treated in a single visit, typically a few hours, after the roof and property are prepared. Larger or more complex roofs may take longer.

Does every roof qualify?

No. Rejuvenation is only appropriate for asphalt shingle roofs that are aging but still structurally sound. Roofs with rotting decking, structural damage, major active leaks, widespread missing shingles, or severe deterioration are not candidates.

How old can a roof be and still qualify?

Age alone does not decide it — condition does. Roofs in roughly the 8–20 year range are the most common candidates, but a well-ventilated 22-year-old roof can be in better shape than a poorly ventilated 14-year-old one. We assess the shingles rather than the install date.

Can a 20-year-old roof be rejuvenated?

Sometimes. If the shingles are intact, the mat is not exposed across the field, the decking is sound and there are no major leaks, a 20-year-old asphalt roof can be a candidate. If the shingles are already cracking through or shedding heavily, it usually is not.

Can rejuvenation fix leaks?

No. Rejuvenation is not a leak repair. Active leaks indicate a failure at the shingle, flashing, or decking level and need repair or replacement first. If a leak is found during assessment, we will tell you that before discussing treatment.

Does it repair missing shingles?

No. Missing shingles need to be replaced by a roofer. A small number of replacements can sometimes be handled before treatment; widespread missing shingles usually mean the roof is past the point where rejuvenation makes sense.

See the full FAQ →

Not sure where your roof stands?

A free assessment tells you which of the three paths fits your roof — including when rejuvenation is not appropriate.

Call nowGet estimate