# Roof Bevels Using Steel Square

## Presentation on theme: "Roof Bevels Using Steel Square"— Presentation transcript:

Roof Bevels Using Steel Square

Creeper Edge Bevel using Steel Square

Creeper Edge Bevel using Steel Square
Using our Knowledge of Similar Triangles If we reduce all sides of the Triangle by the same ratio the angles formed will be the same

Creeper Edge Bevel using Steel Square
Therefore we need to reduce the full scale triangle to fit the steel square above

Creep Edge Bevel using Steel Square
Using our Knowledge of Similar Triangle If we reduce it by a factor of 6 we have the triangle above left

Creep Edge Bevel using Steel Square
Using our Knowledge of Similar Triangle If we reduce it by a factor of 6 we have the triangle above left

Creep Edge Bevel using Steel Square
In this case we We are after this angle It doesn’t matter which blade of the square you transfer the measurement to so long as you remember the location of the angle you are after.

Creep Edge Bevel using Steel Square
We are after this angle If we place the measurements on the other blades NOTE – Do not confuse this with the purlin edge bevel as it is not the same

Purlin Edge Bevel using Steel Square

Purlin Edge Bevel using Steel Square
Using our Knowledge of Similar Triangle

Purlin Edge Bevel using Steel Square
Using our Knowledge of Similar Triangle If we reduce it by a factor of 6 we have the triangle above left

Purlin Edge Bevel using Steel Square
In this case we We are after this angle .Remember it is important to keep track of the angle you want. It is easy to confuse this with the creeper edge bevel

Creeper & Purlin Edge Bevel using Steel Square
I have always found it less confusing if the angles are put on the square as you see it

Hip Edge Bevel using Steel Square
From our previous work we developed the above dimensions We need to reduce the triangle to fit on the steel square Say Divide by 9

Hip Edge Bevel using Steel Square
From our previous work we developed the above dimensions We need to reduce the triangle to fit on the steel square Say Divide by 9

Hip Edge Bevel using Steel Square
Remember to Keep Track of the required angle

Purlin Face Bevel Review triangle that forms this bevel
Formed by Common Rafter & Rise

Purlin Face Bevel We can reduce by a factor of 4

Purlin Face Bevel We can reduce by a factor of 4

Purlin Face Bevel Remember to Keep Track of the required angle