Make Roof Pitch Steep

A roof that slopes upward vertically 6 inches for every 12 inches measured horizontally is said to have a 6 pitch a vertical rise of 8 inches per foot is an 8 pitch and so on.

Make roof pitch steep.

A roof with a pitch of less than 5 has a shallow slope and a roof pitch of more than 8 appears to have a steep slope. Pitch is the slope or angle from the wall plate to the roof ridge line. A flat roof would have a 2 12 pitch while the average roof pitch would be between 4 12 and 9 12. Single ply or torch down roof structures are made specifically for flatter rooftops and cannot be used when building a steeper roof.

Meanwhile tile and shingles do better on steep pitches while low pitches may need metal or concrete roofing instead limiting your design options. The pitch of the roof is determined by the vertical rise in inches for every horizontal twelve inch length. Any pitch higher than 9 12 is considered a steep pitch. The way pitch also known as roof slope is measured is rise over run.

Most roof s have a pitch in the 4 12 to 9 12 range. Roof pitch is the measurement of roof steepness. Pitch for a gable roof the most common is generally 1 4 or 1 3. Which is equal to 1 4 or 1 3 the total span of the building not counting any overhang.

So if your roof rises 4 inches for every 12 inches of horizontal length then the pitch of your roof is expressed as 4 12. A ratio is the most common way of expressing roof pitch or roof slope but degrees are also possible. A pitch over 9 12 is considered a steep slope roof between 2 12 and 4 12 is considered a low slope roof and less than 2 12 is considered a flat roof.