Slope Pitch Of Roof

Take a measurement of 12 inches using a level.

Slope pitch of roof.

The ridge height is 1 9 to 1 7th the span an angle of 12 5 to 16. The rafters equal the span. A 30 degree roof slope 7 12 pitch is the right pitch to aerodynamically handle high wind. Roof pitch is the degree of building s roof slope.

The ridge height is 2 9ths to 1 3 the span an angle of 24 to 34. These types of roofs anything under 3 12 have increasingly shown jacksonville homeowners issues. While the cost of the materials and labor to reroof a steep slope roof is more expensive the longevity is. Steeper slopes increase the sail effect that makes them susceptible to wind.

The slope ratio represents a certain amount of vertical rise for every 12 inches of horizontal run. Take the measurement of the vertical. It determines how many inches the roof should rise for every 12 inches expanding on the horizontal side. The rafter length is 3 4 the span about 48.

Position your level against the roof until the bubble of the vial sits between two lines. Some people prefer high pitches and some other choose low roof pitches each has their own advantages and disadvantages. Understanding your roof s pitch and slope low slope. A roof that rises 4 inches for every 1 foot or 12 inches of run is said to have a 4 in 12 slope.

Check the surface of the. Before taking any measurements you must first confirm that it s safe to walk on your roof. If the rise is 6 inches for every 12 inches of run then the roof slope is 6 in 12 the slope can be expressed numerically as a ratio.