Hancock Roof Cuts And Rafter Lengths

If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length.

Hancock roof cuts and rafter lengths.

It will help you with plumb and side cuts for hip and rafter down and side purlin cuts and more. The length of rafter per meter of run is 1 1543. With calculations diagrams and tables. Roof cuts rafter lengths hardcover january 1 1975 by hancock s roof books author see all formats and editions hide other formats and editions.

Note that this is not the actual length of the rafter. A must for all builders. Also cuts and bevels for gable and cornice mouldings accompanying each of the 48 pitches with. With calculations diagrams and tables.

Buy roof cuts and rafter lengths at angus robertson with delivery an easy to read handy pocket guide to roof construction measurements and details. It will help you with plumb and side cuts for hip and rafter down and side purlin cuts and more. The length of the rafter is given from the long point of the ridge cut at the top down along the top edge the board to the same plumb cut on the rafter s notch. 3220 2 1610mm horizontal span each rafter will cover and before meeting the ridge now when we turn to the 30 page in the rafter ready reckoner and when looking up the common rafter lengths one of the things it tells us is.

The rafter member will be longer. Calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. Select a roof pitch. If you plan to have overhang etc.

Full length roof framer a series of tables giving the full length of all rafters for any span for 48 different pitches. Cuts and bevels for common hip valley jack and purlin rafters. Roof cuts and rafter lengths by hancock boffins books roof cuts rafter lengths roofing book. Well known throughout the industry as the little red roofing book it can be or should be found in the back of every roofer 039 s ute.

For example if the roof rises 4 feet and the span is 16 feet twice the run. The results are automatically fired as soon as any of the values are entered or altered. Roof cuts and rafter lengths hancock s 10th edition is a very popular best selling book. Determine a thickness for the ridge and use the drop down to select it.

Pitch is the incline of the roof represented as the ratio of rise to the span twice the run. It is the length of this portion of the rafter. Includes result for hip valley factor slope factor and the roof slope in degrees.