Asphalt Shingles

Two types of asphalt shingles are made: organic and fiberglass or glass fiber. Organic shingles are generally paper (waste paper) saturated with asphalt to make it waterproof, then a top coating of adhesive asphalt is applied and ceramic granules are then embedded. In the case of algae-resistant shingles, a portion of the granules contain leachable paint ceramically coated, designed to protect against discoloration from algae on the roof. This does not protect from moss growth but does slow the growth. Moss feeds on algae and any other debris on the roof. Most manufactures offer a 5- to 10-year warranty against algae growth.
The protective nature of asphalt shingles primarily comes from the long-chain hydrocarbons impregnating the paper. Over time in the hot sun, the hydrocarbons soften and when rain falls the hydrocarbons are gradually washed out of the shingles and down onto the ground[citation needed]. Along eaves and complex rooflines more water is channeled so in these areas the loss occurs more quickly. Eventually the loss of the heavy oils causes the fibers to shrink, exposing the nail heads under the shingle flaps. The shrinkage also breaks up the surface coating of sand adhered to the surface of the paper, and eventually causes the paper to begin to tear itself apart. Once the nail heads are exposed, water running down the roof can seep into the building around the nail shank, resulting in rotting of roof building materials and causing moisture damage to ceilings and paint inside.

Asphalt Shingles Projects

Free Estimate

Get a FREE estimate on your Energy Star roof, today! Being conscious of the environment, doesn’t have to break the bank. Take advantage of our FREE estimates for upfront pricing that is well within your budget.

Call 808-234-1000 for a FREE Estimate on your new roof, today!

 alt tag

Free Report

Get our popular report: "Hawai'ian Roofing Tips". Don't make basic mistakes on your roof that will damage your home and reduce the value of your home.

 alt tag

We respect your email privacy

 alt tag

We accept:

alt tag alt tag alt tag alt tagalt tag

A fully licensed and insured roofing
contractor in Hawaii.