They work! 

Alberson’s Tile Roof Glaze  has had a long standing commitment to “GREEN” products. Since our inception in 1986, we have been producing Environmentally Safe products such as  Hydro-Sheen Tile Roof Glaze, Hydro-Bond, and Oxide Alternative., that meet or are below the V.O.C. levels that are established by the United States Environmental Protection Agency and most other Government Agencies. Alberson’s also manufactures other green products to include RTC 5000 Roof Tile Cleaner, Algae Armor, and Re-Flect RC (an IRCCS) Interior Radiation Control System

William  Alberson Sr.,the President and CEO of ATRG, not only designed and developed the formulas for our products, he established the application methods that we use.