1 2 Pitch Roof Framing Plan

A 12 to 24 pitch is expressed as 1 2.

1 2 pitch roof framing plan. 4 12 through 9 12 are the most common pitches. The minimum roof pitch is 1 8 inch rise per foot of span. The pitch can be expressed numerically as a fraction. The pitch fraction represents a certain amount of vertical rise over the entire span.

The greater the roof s pitch the better it will shed snow ice and rain. It is also easier to insulate a roof with a greater pitch. A framing square is traditionally used for laying out the roof and determining pitch. For example given a roof with a rise of 4 feet and a span of 24 feet the pitch is 1 to 6 pitch which can be expressed as the fraction of 1 6.

As you can see the initial plan for framing your roof needs to take into account several key variables such as the shape of the roof and any relevant community building codes. 3 inch rise per 12 run is a 3 12 pitch roof. 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. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

You will then have to choose between two very different types of roof framing stick framing vs. Vertical rise over horizontal run. Roof pitch the roof pitch is the numerical measure of how steep or shallow a roof is. In the u s it is defined by the rise in inches to a 12 run.

This is denoted two ways a 1 3 or 1 4 pitch in fractions and a 6 12 pitch in inches which means the roof rises 6 inches for each 12 inches of run.