PART III.

ROOFS.—Saddle Roof.—Lean-to or Shed Roof.—Simple Hip-Roof.—Pyramidal Roof.—Theoretical Roof.—Roof with Straining Beam.—Gothic Roof.—Hammer-Beam Roofs.—Curved Principal Roofs.—Roofs with Suspending Rods.—Deck Roofs.—King-post and Principal Roof.—Queen-post and Principal Roof.—Roofs with Laminated Arches.—Strapped Roof Frames.—Tie-beam Roofs.—Roofs for Long Spans.—Theatre Roof.—Church Roof.—Mansard Roof.—Slopes of Roofs.—Rules for Determining the Sizes of Timbers for Roofs.—Acute and Obtuse Angled Hip-Roofs.—Development of Hip-Roofs.—Obtaining Lengths and Bevels of Rafters.—Backing Hip Rafters.—Lengths, Bevels and Cuts of Purlins.—Circular, Conical and Segmental Roofs.—Rafters with Variable Curves.—Veranda Rafters.—Development of all kinds of Rafters.—Curved Mansard Rafters.—Framed Mansard Roofs.—Lines and Rules for obtaining various kinds of Information.—Thirty-four Illustrations.

COVERING OF ROOFS.—Shingling Common Roofs.—Shingling Hip-Roofs.—Method of Shingling on Hip Corner.—Covering Circular Roofs.—Covering Ellipsoidal Roofs.—Valley Roofs.—Four Illustrations.