Shed Dormer Roof Pitch

Whereas a hip roof and other popular roof types have at least two sides the shed roof has a single slope that can vary in steepness depending on the design.

Shed dormer roof pitch.

This is denoted two ways a 1 3 or 1 4 pitch in fractions and a 6 12 pitch in inches which means the roof rises 6 inches for each 12 inches of run. This type of dormer needs a roof pitch shallower than that of the original. A framing square is traditionally used for laying out the roof and determining pitch. Dormer windows such as the traditional gabled dormer or the more modern transom dormer allow in light add interest to a roof line and can also give some additional space in a shed loft.

You can assess this in two ways either as the roof pitch angles which the rafters make with the horizontal or the proportion between the run and the rise of the roof. The shed roof pitch has two slopes and the window above eaves level allows additional light into the shed. Pitch is the amount of angle or slope the roof has. If you are only trying to keep a wood pile dry or storing a few outdoor tools and light machinery out of the weather then you might consider a simple single pitch roof since most everything inside will be stored at ground level and pulled out from the outside of the shed.

Constructing a new shed roof at the desired pitch is as easy as knowing how to use a speed square. The dormer s roof slope should be at least 4 in 12. Flush dormers tend to look boxy and flatter roof pitches make them appear even boxier. Since these roofs slope there is less siding required for the dormer than on a shed roof dormer but more work and cutting to accommodate the slope change.

This image shows a transom dormer. Therefore if your roof rises 4 inches over the course of 12 inches of horizontal run then your roof pitch is 4 12. Shed roof dormer cost. 23 300 for dormer 16 wide x 14 deep.

Roof pitch refers to the slope which the rafter creates. A shed dormer on the other hand is usually had on homes with a roof pitch of at least 8 in 12 or steeper. 75 120 per square foot or 16 800 to 26 880. Recessed dormer set into the roof a recessed dormer i like to call it a sugar scoop maximizes the height of the dormer face while minimizing the projection of the dormer roof above the main roof plane.

Roof pitch is another important variable. Of course a shed dormer s roof slope needs to be shallower than the primary roof slope but it s best to keep the dormer roof slope at least 4 in 12 or steeper. As stated in the. In general a 11 2 story house with a roof pitch of 8 in 12 or steeper is suitable for a shed dormer.

Remember that pitch is calculated as the height or rise of a roof pitch over 12 inches of horizontal run. Average cost and size.