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Roof Bevels Using Steel Square. Creeper Edge Bevel using Steel Square.

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Presentation on theme: "Roof Bevels Using Steel Square. Creeper Edge Bevel using Steel Square."— Presentation transcript:

1 Roof Bevels Using Steel Square

2 Creeper Edge Bevel using Steel Square

3 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

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

5 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

6 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

7 Creep Edge Bevel using Steel Square 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. In this case we We are after this angle

8 Creep Edge Bevel using Steel Square 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 We are after this angle

9 Purlin Edge Bevel using Steel Square

10 Using our Knowledge of Similar Triangle

11 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

12 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

13 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

14 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

15 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

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

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

18 Purlin Face Bevel We can reduce by a factor of 4

19 Purlin Face Bevel We can reduce by a factor of 4

20 Purlin Face Bevel Remember to Keep Track of the required angle


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