How To Frame Gable Roofs 10



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Laying Out The Collar Ties

Set the framing square on the collar tie, as shown in figure 41, so the unit of run 250 and rise 150 are on the same lower edge. Mark and cut the tie. Collar ties are made up of not less than 38 mm by 89 mm (1.5 inches by 3.5 inches) stock. They should be installed (preferably) horizontally along the midpoint of the rafter when the slope is 1 to 3 or greater. If the collar tie is 2400 mm (7.87 feet) or greater, it must be laterally supported near its centre by a continuous a 19 mm (3/4 inch) by 89 mm (3.5 inch) ribbon.

                                                     Figure 41  The Collar Tie Layout








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                                                                 Framing Gable Roofs Links

                                                     1.Framing Gable Roofs: Roof Framing Is Based On The Pythagorean Theorem.
                                                     2.Framing Gable Roofs: Layout The Ceiling Joists.
                                                     3.Framing Gable Roofs: Cut The Ceiling Joist To The Slope Of The Rafter.
                                                     4.Framing Gable Roofs: Gable Roof Components.
                                                     5.Framing Gable Roofs: Calculate The Length Of A Common Rafter.
                                                     6.Framing Gable Roofs: Mark Plumb Lines For Ridge, Birdsmouth And Overhang.
                                                     7.Framing Gable Roofs: Adjust The Rafter To The Size Of The Ridge Board.
                                                     8.Framing Gable Roofs: Layout & Cut The Rafter Birdsmouth.
                                                     9.Framing Gable Roofs: Calculate Length Of The Rafter Overhang & Cut Excess.
                                                     10.Framing Gable Roofs: Layout The Collar Ties.
                                                     11.Framing Gable Roofs: Calculate The Gable End Stud Lengths & Adjustments.
                                                     12.Framing Gable Roofs: Calculate Gable End Stud Length By Ratio & Proportion.







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