Gambrel Roof Snow Load Calculator

A gambrel or barn style roof is simply a gable roof with a change in slope partway up the roof.

Gambrel roof snow load calculator.

Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth. It also informs you whether you should immediately remove some of the snow or you can wait a little bit longer. Length of high roof lu. To calculate a gambrel roof select gambrel roof from the roof type dropdown list or click on the appropriate toolbar button to calculate a.

Horizontal distance from eave. Gambrel roof framing geometry calculator inch this gambrel roof fits in a semicircle and starts as the top half of an equal sided octagon. For the design of an actual structure a registered and licensed professional should be consulted as per irc 2012 sec. P p from eave to ridge w.

Our calculator automatically finds the permissible load on your roof according to the national building code of canada nbc. R802 10 2 and designed according to the minimum requirements of asce 7 10. Figure 7 1 pages 84 85 and table 7 1 page 92. All of the load cases required to fully design an actual structure are not provided by this calculator.

Check overhang to calculate rafter overhang equal to the lower level cut at the full rafter depth. Move slider or directly enter angle to alter sweep angle of lower rafters and change the shape. Basing on the roof parameters you specified in the first section our snow load calculator displays the maximum allowable snow cover thickness and snow weight. Besides its unique appearance a gambrel roof also serves to maximize the usable floor space in the attic area.