71 ft A valley rafter is similar to a hip rafter, but it runs from a...

Transcribed Image Text:

71 ft A valley rafter is similar to a hip rafter, but it runs from a lower inside corner of the roof to the ridge. It runs along the intersection, or valley, of two roof surfaces as shown to the right. In the drawings below, the pitch of all four surfaces which make up the main 42 ft x 71 ft roof is 10:12. The pitch of the two surfaces that make up the small 10 ft x 17 ft entry roof is 6:12. Determine the length of the valley rafter AB (in feet and inch format, correct to the nearest whole inch) and the actual roof area (in square feet, correct to three significant digits). Plan 42 ft 10 ft Side Elevation A B 17 ft Valley Rafter a) The length of the valley rafter AB is b) The actual area of the roof is feet Square feet inches Front Elevation 71 ft A valley rafter is similar to a hip rafter, but it runs from a lower inside corner of the roof to the ridge. It runs along the intersection, or valley, of two roof surfaces as shown to the right. In the drawings below, the pitch of all four surfaces which make up the main 42 ft x 71 ft roof is 10:12. The pitch of the two surfaces that make up the small 10 ft x 17 ft entry roof is 6:12. Determine the length of the valley rafter AB (in feet and inch format, correct to the nearest whole inch) and the actual roof area (in square feet, correct to three significant digits). Plan 42 ft 10 ft Side Elevation A B 17 ft Valley Rafter a) The length of the valley rafter AB is b) The actual area of the roof is feet Square feet inches Front Elevation