Do asphalt shingles darken with age?

“Experiments have noted that the greatest cause of asphalt shingle aging is thermal loading.” Over time the asphalt becomes oxidized and becomes brittle. Roof orientation and ventilation can extend the service life of a roof by reducing temperatures.

Algae /Dark Stains on asphalt roof shingles The primary species of algae that tends to collect and grow on roofs is called cyanobacteria Gloeocapsa magma algae, which is contained in and transported through the air.

The oils in any asphalt shingle rise to the top with time and are washed away or dried out by the elements. This makes shingles weak and brittle. The more asphalt there is in the shingle, the longer this process takes. So, roof longevity can be improved for thicker/heavier shingles.

And lighter-colored roof shingles help keep attic temperatures —and your air conditioning bill —down. Some shingle colors have been shown to lower attic temperatures, but whether this means light shingles will last longer than dark shingles is more problematic.

The weight and toughness of the asphalt is useful for wind and hail impact resistance. Mineral granules : The part of the asphalt shingle that will be exposed to the elements is coated with mineral granules that are available in a wide range of colors.

Here’s a summary of how asphalt shingles stack up against other popular roofing options. Metal roofing: From the upfront cost perspective, asphalt shingles cost less to install initially, but they generally have a higher lifetime cost.

How do I dispose of asphalt shingles?

Spread plastic sheeting on the ground around the house where the asbestos siding or roofing will be removed. Wear protective clothing, gloves, goggles, shoe covers, and the proper respirator (N100 or HE) when working with asbestos. Keep those not wearing proper safety equipment away from the area where the asbestos material is being removed., and more items.

These green alternatives to slate and asphalt shingles-made from recycled materials-are 100% recyclable. Since they are relatively new to the market, manufacturers have not proved claims of longevity. However, the plastics and rubber that make up the shingles are strong, flexible and resistant to.

You will need to make several trips to the landfill. Truck beds only hold a small amount of debris. Trips to the dump will add time to your project. Not always an option when you are hiring a contractor to complete your roofing project.

What are the signs of an aging roof?

The color of your roofing shingles may fade over the years due to UV degradation, another sign of an aging roof., and dark streaks. While dark streaks on your roof may be more of an aesthetic problem, they’re an indication of algae growth on your roof.

When a shingle loses its protective layer of granules, UV rays from the sun begin to destroy it. More granules fall off around the damaged spot and the bruise grows. The damage may not be obvious at first, so if you suspect hail damage, get an inspection from a roofing contractor.