Roof Shingle Granules

While granules were first developed in the early 1900s it wasn t until the 1970s that manufacturers developed an algae resistant coating.

Roof shingle granules.

Available in a wide array of colors classic granules are essential to the beauty and durability of any roof. 3m roofing granules overview applying 3m science to our innovative roofing granules we offer sustainable solutions to homeowners manufactures and contractors. Over the years granules begin to erode and fall off. Ca prop 65 pdf.

Contains a uv blocker that protects against damaging sunlight improving the durability of the membranes and the system color lock ceramic firing helps maintain the true shingle color weather resistant and designed to meet industry and code requirements. Once this erosion of the granule has taken place the life of the shingle is basically over. Granules serve several critical purposes and if shingles are deteriorating it may be time for repairs to keep your roof functional. 3m classic roofing granules are tough beautiful and long lasting.

Because granule loss is one of the signs that a roof is getting older it is used by inspectors as a gauge of roof condition and a way to estimate additional roof life. Granule loss indicates aging of a roof. Get pricing and availability. Go to us navigation go to page content.

Check other stores closed. Actual net contents lbs 0. Item 240789 model 4302208. Some other aging clues are curling at shingle corners lack of tab adhesion and broken off pieces as the shingles get more brittle with age.

Benefits of mineral shield roofing granules include. Why you need granules on roof shingles 1.