Pitched Or Sloping Roof

The sloped roofs on this modern home were designed to take advantage of the path of the sun to maximize brightness and to make the interior of the home feel bigger and brighter.

Pitched or sloping roof.

Photography by hoachlander davis photograph. Roof pitch refers to the slope which the rafter creates. However most often a ratio of pitch also fraction is slang used for the more useful slope of rise over run of just one side half the span of a dual pitched roof. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot.

The pitch of a roof is its vertical rise over its horizontal span. High and low pitch examples two examples at each end of the spectrum. For most home styles roof pitches fall in a range 4 12 a moderate slope up to 8 12 fairly steep. Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12.

Shingles can be fabricated from a wide range of materials such as asphalt least expensive to natural wood metal tiles and heavy slate most expensive. 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. A roof comprising a mono pitched roof or for larger buildings series of mono pitched roofs with vertical surfaces glazed and pitched upward in general terms away from the equator though other directions suit if direct sunlight is desired and where rooftop access may otherwise be impracticable. Reader swartz architects designed the renovation of this 1970 s farmhouse.

The maths behind this number is that it is the square root of rise run 2 1. This is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. Often you express roof pitch as the ratio between the rise and the run in the form of x 12. Pitched roofs are most often associated with asphalt shingles although standing seam roofs are becoming ever more popular on pitched roofs as well.

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. A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. 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.