Roof Pitch Angle Chart

Waheed Akhtar — Mon, 28 Jun 2021 08:28:19 +0000

Roof Pitch Angle Chart lets you find out how steep or flat your roof slope is. The roof pitch is displayed or shown using a two-digit combination. The most frequent approaches for designating the pitch of a roof are (4/12 or 4:12).

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Roof Pitch Angle Calculator

Roof Pitch Angle Calculator

The calculator will tell you the value of roof pitch angle if you choose the roof pitch ratio. With this our official free and offline application, the roof pitch angle can be calculated. Additional calculators can also be accessed.

Roof Pitch vs Angle Chart

You may also see all of the roof pitch ratios and angles at a glance.

Roof Pitch Ratio	Roof Pitch Angle
1:12	4.76°
2:12	9.46°
3:12	14.04°
4:12	18.43°
5:12	22.62°
6:12	26.57°
7:12	30.26°
8:12	33.69°
9:12	36.87°
10:12	39.81°
11:12	42.51°
12:12	45.00°
13:12	47.29°
14:12	49.40°
15:12	51.34°
16:12	53.13°

What is the minimum slope for a pitched roof?

A roof’s smallest pitch equals 1/4″ rise to a 12″ run. Built-up or specialized synthetic roofs are the only way to use such a small pitch. Low-slope roofs are not appropriate for porches that are located near trees or that are prone to heavy rains.

What is the most common roof pitch angle?

In the vast majority of flat roofing systems, 1:80 (0.720) is the recommended minimum angle, irrespective of the materials used.

How do you find the angle of a roof pitch?

When calculating the pitch, or angle of a roof, take into account the number of inches the roof rises vertically for every 12 inches it extends horizontally. Typically, a pitch of 6-in-12 refers to a roof that rises 6 inches for every 12 inches of horizontal run.