Causes effects of loss of protective mineral granules from roof shingles asphalt roof shingle defects.
Sand that washes off roof shingles.
Granules were added to the design of shingles because of mainly these reasons.
Most roofing shingles nowadays are composite asphalt fiberglass with the topical sand as a uv barrier and coloring.
It seems to be most prevalent early and later in the shingles life.
Gravel washing off shingles normal.
The shingles have been on for about 10 years.
Shingle sediment is made up primarily of sand like granules or grit that separate from asphalt shingles and other small matter that sticks to the roof surface and washes into gutters.
So although there is a short list of raw materials in asphalt roofing shingles each serves a key purpose.
Photos and text guide diagnosis of asphalt roof failures causes effects of loss of protective mineral granules from roof shingles description of different causes of roof shingle granule loss.
Asphalt shingles are desireable as a recylcing material so not so much a landfill concern anymore.
Steel has it s own problems and isn t architectually desirable in many cases.
Normal defective product storm damage foot traffic etc.
They help keep ultraviolet rays off the shingle s asphalt coating.
The little gravel pieces are red.
And so for many years some rookie installers thought peeling off the release film exposed sealant that was needed for shingle adhesion on the roof but that s simply not true.
Aging shingles lose granules hence becoming more prone to damage to the home.
Uv rays can cause a lot of damage.