Originally bonded to the shingle itself small granules eventually break off creating the gritty mass typically found on top of a roof.
Why are there granuals on roof shingles.
Roof shingle granule loss due to defective roofing product usually exposes the shingle substrate in premature bald patches and is identified by bald spots or exposed shingle substrate on roofs early in their chronological life often distributed uniformly over the roof or in areas of the roof where shingles from a particular pallet of roof shingles were installed.
Well shingle granules are essential to the life of the building roof.
Why do roof shingles have granules.
Tree branches rubbing on the roof this creates clearly defined swept areas of excessive granule loss.
A severe storm a strong thunderstorm is going loosen shingle granules and a hail storm is even worse usually also with pock marked shingles.
You will notice that newer roofs will have most of the granules still attached to the shingles compared to older ones.
Granules in your asphalt shingle are actually small bits of the shingle s top surface.
Without the granules the.
They shield the asphalt and the fiberglass mat from the ultraviolet uv rays of the sun.
Benefits of mineral shield roofing granules include.
Shingle granules shield the shingles from uv rays and increase their fire resistance.
These uv rays will rapidly disintegrate asphalt and the thin fiberglass mat.
The ceramic granules on asphalt shingles provide a very important function.
Mineral granules were added to the design of shingles because they help protect your roof from excessive sun exposure which can eventually lead to damage and hasten the need for a roof replacement.
Granules are a critical ingredient to asphalt shingles and their ability to withstand the harsh weather conditions that they endure year after year not only from the sun but from rain hail and snow throughout the winter.
It protects the roof from ultraviolet uv rays especially the asphalt coating so that the asphalt membrane remains safe it provides some level of fire resistance and add aesthetic appeal and beauty because some granules come in colors.
Granules were added to the design of shingles because they help keep uv rays off the shingle s asphalt coating they make the shingles more fire resistant and they make it easier for manufacturers to package the shingles.
Granules also add increased fire resistance to your roof offering another layer of protection to your home.