METHOD FOR APPLYING GRANULES IN THE MANUFACTURE OF ASPHALT SHINGLES

摘要

The method for applying granules to a moving coated asphalt sheet includes establishing predetermined blend drop areas on the coated asphalt sheets, depositing background granule drops on the coated asphalt sheet immediately upstream from the predetermined blend drop areas so that the leading edge of the background drop defines the trailing edge of the blend drop, depositing blend drops on the determined blend drop areas, and depositing background granules on the remaining portions of the background areas.