An asphalt roof can last up to 30 years with regular maintenance, including cleaning. However, if you suspect that weather and wear have begun to take a toll, look for the following signs you need a roof rejuvenation.

Why Schedule a Roof Rejuvenation?

1. Cracking & Discoloration 

Exposure to sunlight can cause cracking and discoloration. Asphalt shingles contain oils that allow for flexibility, but prolonged exposure to UV rays makes them brittle and susceptible to cracking. Water can get through the cracks, so you'll want to schedule a roof rejuvenation treatment in which professionals apply protective oils.

UV rays also damage particles that give shingles their color. A patchy roof appearance is an early sign of shingle dryness.

2. Curled Shingles


Turned-up edges on shingles are unsightly, and because they expose the underlayment, the roof becomes susceptible to moisture and weather damage. Curling is often caused by a poorly ventilated attic. Hot, moist air rises through the home and gets trapped, leading to mold growth. It may come between the decking and shingles, causing curling. 

Layered roofing, in which a new roof is installed over an old one, can also cause curling. The shingles might not be properly secured to the bottom layer.

3. Granules in the Gutters

Shingles contain granules that provide an extra layer of protection from the elements. When the roof is nearing the end of its life span or is damaged, the bond between granules and asphalt loosens, causing shedding. You may notice granules, which look like coarse, black sand, in the gutters. Not only can this substance clog the gutters, but the shedding means the roof isn’t well protected against the elements. Replace deteriorated shingles for proper protection.


If you’re looking for quality roof rejuvenation and restoration services, turn to Roof Maxx Hawaii in Mililani. For more than 25 years, this team has used sustainable roofing technology. With their 100% bio-based roof oil, you can restore flexibility to shingles and increase roof longevity. Learn more about their services online, or call (808) 522-7663 for your estimate.