2 Slope Roof

Generally such roofs have a pitch ranging from 1 2 12 to 2 12.

2 slope roof. Finding the right products for your low slope roof. Holly smith architects designed this louisiana home. These roofs have a pitch less than 4 12. Residential low slope roofing can generally be divided up into two broad categories.

Larger flat roofed applications low slope such as residential condominium complexes row homes and town houses and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. The slope of the roof on this modern pond side house allows the solar panels to take in as much energy as possible and lets rain water fall back into the pond to help with drainage around the house. In degrees 10 2 in 12 or 1 in 6 is considered a minimum.

A roof pitch multiplier also known as a roof pitch factor is a number that when multiplied by the area covered by a sloped roof gives the actual area of the roof. A roof similar to a mansard but sloped in one direction rather than both. Built up roofs must have a design roof slope of 1 4 12 or greater 2 slope. That means the roof doesn t shed water as easily as steeper roofs which is why choosing the right type of roofing material is so important.

The exact roof slope in degrees is given by the arctangent. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7. An element of the second empire architectural style mansard style in the u s. Coal tar built up roofs however can have a design roof slope of 1 8 12 1 percent but no less.

A roof with the pitch divided into a shallow slope above a steeper slope. Photography by marc lamkin. This means for every 12 horizontal units the roof must rise a minimum of one fourth vertical unit. Simply put it s a shallow roof.

The steep slope may be curved. Arctan 3 12 14 0 the primary purpose of pitching a roof is to redirect water and snow. Thus pitch is typically greater in areas of high rain or snowfall. Conventional roofs are the easiest to construct and you can walk on them safely.

Definitions vary on when a roof is considered pitched.