All roofs go through a process called weathering, which refers to the effects of long-term exposure on shingles. Weathering is a natural part of a roof’s life. While it doesn’t always mean your roof is damaged and requires roof replacement, weathering does lead to damage over the passage of time.
A roof’s rate of weathering depends on a number of factors:
High-quality materials last longer than low or poor-quality ones. That’s why shingles and other materials from the most respected manufacturers cost more than others. Even variants from the same manufacturer differ in quality; hence, the different price points.
Where there is more sun, there is more weathering. South-facing slopes weather more quickly due to the higher UV exposure and a wider range of thermal cycles.
A sloped roof lasts longer than a flat roof because the slope helps the roof shed water more quickly. Flat roofs are also more exposed to UV rays. At least when you have a sloped roof, the non-south facing sides have shorter exposures to direct heat.
The climate in your area also affects how quickly your roof deteriorates. Weathering can damage a roof faster under harsh climate conditions. Thermal cycling, wind and moisture all contribute to weathering.
Expansion and Contraction
In areas where thermal cycling has a large difference, roofs contract and expand more, leading to faster weathering.
Dark-colored roofs are less reflective than light-colored ones, which means a dark roof absorbs more heat, shortening its life span.
Roofs need cleaning to reduce their chances of being damaged by debris and growths. Gutter installation keeps them protected from moisture infiltration and ice damming, but gutters and downspouts should be cleaned and unclogged too. Small or impending damage should be fixed right away to prevent it from growing and becoming more difficult or expensive to fix. Regular inspections and maintenance by a professional are important to reduce the effects of weathering.
If your home is located in higher elevations, it will be exposed to more UV rays. A two-story home also has a roof that’s more exposed to heat than a roof on a single-story home. More exposure to heat means a shorter life span.
Weathering is greater if the roof does not have sufficient ventilation. Attic superheating due to poor ventilation is responsible for baked shingles and ice dam formation.
Cantrell Roofing, LLC, offers roof repair and replacement. We install and maintain some of the toughest roofs in Texas. Call us today at (903) 848-9494 (Canton), (903) 848-9494 (Burleson), (903) 848-9494 (Sherman) or (903) 848-9494 (Tyler). You can also fill out this form for a free consultation.