Sand That Washes Off Roof Shingles

Uv rays can cause a lot of damage.

Sand that washes off roof shingles.

They help keep ultraviolet rays off the shingle s asphalt coating. It seems to be most prevalent early and later in the shingles life. The shingles have been on for about 10 years. Granules naturally separate from shingles over its life.

Gravel washing off shingles normal. 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. Causes effects of loss of protective mineral granules from roof shingles asphalt roof shingle defects. 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.

Most roofing shingles nowadays are composite asphalt fiberglass with the topical sand as a uv barrier and coloring. They protect from algae fungus and moss from growing in between shingles and crevices. Steel has it s own problems and isn t architectually desirable in many cases. Granules were added to the design of shingles because of mainly these reasons.

Asphalt shingles are desireable as a recylcing material so not so much a landfill concern anymore. The little gravel pieces are red. So although there is a short list of raw materials in asphalt roofing shingles each serves a key purpose. Normal defective product storm damage foot traffic etc.