Different Types Of Roof Slopes

Sawtooth roofs have two or more parallel pitched roofs in which the slope and vertical surfaces alternate.

Different types of roof slopes.

Click to enlarge any image. If asphalt shingles are to be installed on a low slope roof special steps are required to avoid short roof life and roof leaks. Compare with bell roof. Low slope roofs are from 0 to 3 12 in pitch.

Slopes greater than 18 12 are found on a frame roofs and some mansard style roofs. The gable roof is by far the most popular style for sloping roof types. See low slope roofing. Lapped nonsoldered seam metal roofs without applied lap sealant must have a minimum roof slope of 3 12 25 slope.

They are also referred to as kicked eaved roofs and like mansard roofs they feature a double slope but unlike mansard roofing the upper slope has less of a pitch on a bonnet roof. This allows more room on the inside and in most cases creates an extra space. This means for every 12 horizontal units the roof must rise a minimum of 3 vertical units. Most flat roofs are not really 100 flat they are low sloped roofs that appear flat but have a little bit of a slope to allow for the run off water.

A roof with the shallow slope below the steeper slope at the eaves. A japanese decorative pent roof. The defining feature of hip roofs is that the roof faces are almost always identical in pitch making them symmetrical from the center point. With a bonnet roof the lower slope hangs over the front and back of the house making it an excellent cover for a porch or outdoor patio.

A gambrel or a barn roof is much like mansard in a sense that it has two different slopes. The exterior resembles the side view of a saw blade. Different sloping roof types. A look at the different types of roofs roof shingles roof design and roofing materials.

The bottom part of the roof slope is steeper so that the pitch of the roof barely starts. The popular simple hip roof is a type of roof where all four sides feature symmetrical gentle slopes towards the walls with no gables or vertical sides to the roof. Flat low slope steep slope roofs. These are more popular styles.

Some sources consider low slope to include 3 12 pitch roofs. Our photo illustrates a roof whose slope has become irrelevant after the building collapsed. I suspect the roof in the photo was a bit steeper before the building fell in. Summary of definitions of roof slope types.

The difference between the two is that the gambrel only has two sides while the mansard has four. Homeowners love the feel and personality they bring to their homes. The minimum roof slope for metal roof panels depend on 3 different scenarios. A hip roof on a square building.

Pyramid roof pavilion roof. Similar to mansard the lower side of the gambrel roof has an almost vertical steep slope while the upper slope is much lower.