Chapter 12 Roof Framing . . . . . . . . . . . . . . . . . . . 297 12.1 Roof Types . . . . . . . . . . . . . . . . . . . 297 12.2 Roof Supports . . . . . . . . . . . . . . . . . 299 12.3 Parts of a Roof Frame . . . . . . . . . . . 299 12.4 Layout Terms and Principles . . . . . . 299 12.5 Unit Measurements . . . . . . . . . . . . . 302 12.6 Framing Plans . . . . . . . . . . . . . . . . . 302 12.7 Rafter Sizes . . . . . . . . . . . . . . . . . . . 303 12.8 Laying Out Common Rafters . . . . . 304 12.9 Erecting a Gable Roof. . . . . . . . . . . 306 12.10 Gable End Frame . . . . . . . . . . . . . 309 12.11 Hip and Valley Rafters . . . . . . . . . . 312 12.12 Erecting Jack Rafters . . . . . . . . . . 319 12.13 Special Problems . . . . . . . . . . . . . 320 12.14 Roof Openings . . . . . . . . . . . . . . . 320 12.15 Roof Anchorage . . . . . . . . . . . . . . 321 12.16 Collar Ties . . . . . . . . . . . . . . . . . . . 321 12.17 Dormers . . . . . . . . . . . . . . . . . . . . . 322 12.18 Framing Flat Roofs . . . . . . . . . . . . 323 12.19 Gambrel Roof . . . . . . . . . . . . . . . . 324 12.20 Mansard Roof . . . . . . . . . . . . . . . . 325 12.21 Special Framing . . . . . . . . . . . . . . 325 12.22 Roof Truss Construction . . . . . . . . 325 12.23 Bracing of Truss Rafters . . . . . . . . 329 12.24 Roof Sheathing . . . . . . . . . . . . . . . 331 12.25 Estimating Materials . . . . . . . . . . . 336 12.26 Model and Small-Scale Construction . . . . . . . . . . . . . . . . . . 336 Chapter 13 Framing with Steel. . . . . . . . . . . . . . . 339 13.1 Steel Framing . . . . . . . . . . . . . . . . . 339 13.2 Framing Floors . . . . . . . . . . . . . . . . 342 13.3 Framing Walls and Ceilings . . . . . . 345 13.4 Framing Roofs. . . . . . . . . . . . . . . . . 348 Chapter 14 Roofing Materials and Methods . . . . 352 14.1 Types of Materials . . . . . . . . . . . . . . 353 14.2 Roofing Terminology . . . . . . . . . . . . 355 14.3 Preparing the Roof Deck . . . . . . . . . 356 14.4 Asphalt Roofing Products . . . . . . . . 356 14.5 Flashing . . . . . . . . . . . . . . . . . . . . . 360 14.6 Strip Shingles . . . . . . . . . . . . . . . . . 365 Section 3 Closing In Copyright Goodheart-Willcox Co., Inc. xvi