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Shows how to frame any type of roof in common use today, even if you've never framed a roof before. Roof Framing has over 400 illustrations cover every measurement and every cut on each type of roof: gable, hip, Dutch, Tudor, gambrel, shed, gazebo, and more. Information includes how to use a pocket calculator to figure any common, hip, valley, or jack rafter length in seconds. This is the complete guide to framing any gable, Dutch, Tudor, California, gambrel, shed or gazebo roof - including irregular roofs that can stump even experienced roof cutters. The author takes you through every measurement and every cut on each type of roof so you understand exactly what's required.He actually builds a model of each roof described, and recommends that you do the same. When your model matches the author's model, you're an experienced roof cutter for the type of roof just completed. With Roof Framing you aren't restricted to rafter lengths and pitches listed in those rafter tables that roof cutters have struggled with for years. Instead, the author explains how to use an inexpensive hand-held calculator to figure any common, hip, valley or jack rafter length in seconds - including rafters on irregular roofs and rafter pitches or lengths that aren't in any rafter table. Anyone who knows the methods described in this practical manual should have no trouble making a good living as a master roof cutter. About the Author: Marshall Gross learned roof cutting from a master German craftsman and worked as a production roof cutter for seven years before writing this book. He holds a teaching credential in several construction fields, and has taught roof cutting in apprentice training programs and in trade schools. Following the current trend, he has put the lessons in this book on two, full-length videotapes, available from this publisher. Mr. Gross is a member of Carpenter's Local 586. Table of Contents: 1. Introduction to a Simple Roof, 5 Span and total run, 8 Total rise, 9 Unit run and unit rise, 10 Two types of roof framing, 13 Allowable span, 14 Common rafter roof angle chart, 18 2. Cutting Common Rafters, 20 Finding unit length, 22 The model rafter plate, 26 Mathematical length: framing square method, 26 Layout lines for the common rafter, 32 Methods of computation, 46 First ancient and true method, 47 Second ancient and true method, 56 3. Getting the Ridge Length Right, 62 Mathematical ridge length, 63 Double and single cheek cuts, 65 Practice in framing points, 71 Drawing elevations, 92 Actual ridge height, 94 4. Cutting Hip Rafters, 97 Unit run of the hip, 97 Hip shortening and setback, 99 Finding the length of hip rafters, 103 Finding the hip rafter with secant, 113 Building a model hip roof, 115 Hip and valley rafter roof angle chart, 140 5. Valley Rafters are Easy, 141 An equal span addition, 141 The valley rafter, 145 A narrow span addition, 153 The supporting valley rafter, 154 The shortened valley rafter, 156 6. Jack Rafters are Easy Too, 164 Hip Jack rafters, 165 Valley Jack Rafter, 173 Hip-Valley Jack Cripple Jacks, 175 Valley cripple Jacks, 177 7. From Dutch to California, 180 The Dutch, 180 The Tudor peak, 189 The blind valley, 201 The shed roof, 214 Gable end framing, 216 The barge board and the overhang, 221 The gambrel roof, 226 The California, 233 8. Math for Non-Centered Ridges, 240 Defining the problem, 240 Solving by the layout method, 243 Solving by the math method, 245 Framing at the ridge, 247 9. Framing a Gazebo, 249 Math for a regular polygon, 249 The octagon and the square, 267 Drafting an octagon roof, 283 Cutting the octagon hips, 290 Octagon roof angle chart, 308 10. A Simple Irregular Roof, 309 Drafting the model and scaling measurements, 310 Layout with mathematical calculations, 331 Cutting and framing the irregular model, 351 11. A Complex Irregular Roof, 362 Design, 362 Drafting the plan view, 365 Establishing the section lines, 367 The sectional views, 372 12. Irregular Roof Problems, 384 The unequal pitch/equal ridge roof, 384 The irregular California, 397 The shed dormer model, 403 The hip or gable dormer, 408 Appendix, 409 Framing square scales, 409 Roof cutter's geometry and trigonometry, 416 Pitch wall framing, 421 Crickets and hog valleys,425 Calculatingroofareafordifferentpitches,427 Cutting roof sheathing, 429 Ellipses for roof framing, 431 Steps to calculate an irregular roof, 436 Answers, 447 Chapter 1, 447 Chapter 2, 448 Chapter 3, 451 Chapter 4, 462 Chapter 5, 464 Chapter 6, 465 Chapter 8, 468 Chapter 10, 470 Index, 472 By: Marshall Gross Published by: Craftsman Book Company ISBN: 0-910460-40-X 480 Pages, 5-1/2 x 8-1/2 |
