Problems With Roof Slope At 1 12

Some sources consider low slope to include 3 12 pitch roofs.

Problems with roof slope at 1 12.

A 4 12 slope is enough to accommodate water runoff but is not suitable for regions that are. This forms an angle of 18 5 between the horizontal section and the roof and creates a gentle incline that is seen as a midpoint between a low pitch and medium pitch roof. See low slope roofing. If a roof rises 1 in a length of 12 this is 1 12 roof pitch.

1 12 roof pitch angle 4 76 degrees. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. Low slope roofs are from 0 to 3 12 in pitch. That means the roof doesn t shed water as easily as steeper roofs which is why choosing the right type of roofing material is so important.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. If this isn t practical then perform the same measurement on the underside of. 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. Slopes greater than 18 12 are found on a frame roofs and some mansard style.

A very low pitch roof can also be done in metal. At 1 12 pitch you are right at the threshold where standing seam becomes impermissible i mean true standing seam with a rolled lock seam and soldered flat seams must be used. A soldered flat seam metal roof won t be cheap and must be done by an artisan but it lasts a very long time.