es to be made watertight previous to the application of ridgeroll. (Hip and ridge can be covered according to regular Boston hip scheme ifdesired; see detail on manufacturers print, known as American Method Blue-print, Boston Hip.) FLASHING At all hips, valleys, chimneys, and against all abutting… … American or Straight Laid Method of ApplicationShowing Starting Courses at the EavesThe No. 16 Shingle lays to horizontal and perpendicular lines, exposed 7 x 8to the weather. Two hundred and sixty (20U) Shiugles are required to cover one square (100sq. ft.) of roof area. Average weight per square,…
Roofing · Mineral fiber-cement roof tiles · Asbestos
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.