Roofing

The slope of the roofs is determined by the angle between the slope and the horizontal plane or the value of the tangent in percent.

The roof slope is calculated with the help of the following formula:

Once the slope is calculated, the angle can be found in the table below.

Table: Calculating the slope of the roof

Example:

Let’s find the slope of a roof 2 m high (A) and 5 m wide (B) in degrees.

Roof slope: (A / B) * 100 = (2/5) * 100 = 40.

Therefore, we note in the table that the slope of 40% corresponds to 22°.