Roof Truss Span 40 Feet 6 12 Pitch

The vertical rise of the top chord per 12 horizontal inches is the roof pitch or slope.

Roof truss span 40 feet 6 12 pitch. While pitch and slope are used interchangeably they are not the same span also known as gable width this is based on the total footprint of the house and refers to the distance between two exterior walls. Calculate the height of a common truss using the building width and the slope of the roof. If you can t get the heel height most residential trusses will have a 3 top cord. Roof truss span tables alpine engineered products 15.

Top chord live load snow and other temporary loads top chord dead load roofing materials weight of the truss itself other permanent items attached to the roof bottom chord live load storage and bottom chord dead load insulation ceiling materials ceiling fans etc. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. Over 51 sizes styles in stock. Use of manufactured roof trusses can dramatically cut labor costs when framing a gable roof compared to building rafters.

Depending on your roof slope add 4 to 5 inches for heel height. For example 4 12 pitch means 4 inches of rise in 12 inches of run. 6 12 2 12 40 43 59 42 49 62 45 56 66 48 57 71 6 12 2 5 12 37 38 52 38 44 57 41 50 61 44 52 66. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.

Dec 15 2013 free truss plans. 24 28 30 32 34 36 38 40 42 44 48 50 60 truss. The steeper the roof the more expensive the trusses get because the longer the boards get and the more roof area increases. Pitch this is the incline of the roof expressed as a fraction.

Bottom chords is at least 3 12 or the bottom chord pitch is no more than half the top chord pitch. Shop roof trusses spacer floor truss. Truss capacity is listed by pounds per square foot based on the following load rating criteria. Custom trusses up to 100 span.