Framing A Bonnet Roof

It is a complex framing style that can be or usually is a variation of the hip roof but a gable home may also make use of bonnet frame.

Framing a bonnet roof.

This will give the framing square the angle you need to make the ridge cut. Bonnet roofs also known as kicked eaves are double sloped with the lower slope set at less of an angle than the upper slope. Nail 2 boards onto your walls as top plates. Roof framing is one of the most challenging task.

When you nail in the second boards offset the seams of the upper and lower layers by at least 24 in 61 cm. Includes a frame bonnet gable hip mansard butterfly valley combination shed and more. Discover the 36 different types of roofs for a house. Nail the first boards on top of your wall where you plan to build your roof.

The run or half the building span is the base of the triangle. So if the pitch of your roof is 7 12 place one stair gauge on the vertical part of the framing square the tongue at the 7 inches 18 cm mark and place one stair gauge on the horizontal part of the framing square the body at the 12 inches 30 cm mark. 1 8 pitch is given so 24 x 1 8 equals 3 or unit of rise in inches. Look through bonnet roof photos in different colors and styles and when you find some bonnet roof that inspires you save it.

It s like a reverse mansard. Line length is the hyptenuse of the triangle whose. The rise or height of the roof at its peak is the altitude of the triangle. As pictured above it is likely to extend much further than a mansard besides having the lower pitched slope on the bottom.

If the unit of rise in inches is 3 then the cut is the unit of rise and the unit of run 12 inches or 3 12. And the line length measurement from the roof peak to the building wall is the hypotenuse. The upper portion of the roof is heavily pitched and the lower slope is gently pitched. This gallery includes terrific roof design illustrations so you can easily see the differences between types of roofs.

The framing of a basic gable roof is based on a right angle triangle and the various roof framing components fit the triangle. Figure 2 2 roof framing terms. Use 8 penny nails to attach the first 2 in 4 in 5 1 cm 10 2 cm board to the wall studs. The lower slope hangs over the side of the house.