Talking About Roofing Services

Talking About Roofing Services

Three Environmental Factors That Can Affect Your Asphalt Roof's Lifespan

Brittany Howard

If you're a homeowner with an asphalt shingle roof, you may be wondering when you can expect to need a replacement. And while it's true that asphalt shingling does only last about two decades, it's also true that there are many factors that can affect the lifespan of a particular roof. For example, regular maintenance can lengthen your roof's lifespan, while neglect can shorten it. And if it's in the shade of a tree with debris constantly raining down on it and lots of moss growing on it, it's going to need more frequent repairs and replacements. Removing any nearby trees can fix that problem, but there are some factors that you may be less able to control. For example, where you live can have a big impact on how hardy your roof is. Here are three things about your roof's environment that can add to or detract from your roof's working lifespan.

1. Sheltered versus exposed

If your roof is constantly exposed to the worst weather that the seasons can throw at it, you'll notice that it develops wear and tear more quickly. So while being in the shade of a tree that drops debris may not be right for your house, being in the shelter of something (such as a larger building ) may actually help it last longer. Wind damage is less likely to occur if the house is in the lee of another building, a nearby hill, or even a forest. 

2. Climate

Both cold climates and warm climates can damage your house's roof, but warm climates may be the biggest problem. Cold can damage your roof through the freeze-thaw cycle, which is also what causes landslides and other natural events. The freeze-thaw cycle allows water to seep into cracks and then freeze there, expanding and making the crack bigger. Then when the water thaws, more will fit into the enlarged crack, which is then enlarged slightly more the next time the water freezes. However, even more damaging than the freeze-thaw cycle can be the fierce sun of summer. In fact, the sun can be so damaging that a more shaded side of your roof may last longer than the sunny side.

3. Temperature changes

The temperature change between day and night may be greater in hot climates, but this is not necessarily the case. However, if you do have a significant change in temperature between daytime and nighttime, this can also damage your roof. This is because your roof will experience "thermal shock," meaning that its temperature changes so fast that it can't keep up by shrinking or expanding. When this occurs, shingles can experience so much internal tension that they crack. One way to protect your roof from thermal shock is by installing a light-colored roof. The lower heat absorption will lessen the amount of temperature change your roof has to go through.

As you can see, these three factors can greatly influence the amount of wear and tear your roof experiences, which can directly influence how soon it will need to be repaired or replaced. These aspects are good things to consider when you're buying a house or thinking of installing a new roof. If you live in an area where asphalt shingles don't hold up well, maybe installing a different type of roof is a better choice. Contact a roofing contractor to learn more. 


Share

2017© Talking About Roofing Services
About Me
Talking About Roofing Services

Hello, I'm Erica. Welcome to my site about roofing services. We moved into a home in the middle of a stormy country. Although the roof was nice when we moved in, the constant barrage of storms quickly changed its construction. The shingles flew off and flashing unwound until the roof looked awful and started to leak. At that point, we knew we needed to act fast. Luckily, with one call to a roofer, we scheduled the repairs needed to keep it in great shape, even through future storms. I will use this site to talk more about how our roof was repaired and storm proofed.