Definitions for "Built-Up Roofing"
Keywords:  bur, plies, asphalt, mopped, felt
A flat or low sloped roof made up of layers of asphalt and ply sheets. (AKA BUR)
(BUR) A continuous, semi-flexible membrane consisting of plies of saturated felts, coated felts, fabrics or mats assembled in place with alternate layers of asphalt, and surfaced with mineral aggregate, bituminous materials, a granule surfaced sheet or some type of liquid coating.
A continuous, semi-flexible membrane consisting of plies of saturated felts, coated felts, fabrics or mats assembled in place with alternate layers of bitumen and surfaced with mineral aggregate, bituminous material or a granule surfaced sheet, commonly abbreviated BUR.