Roof Drop Per Foot

If the rise is 6 inches for every 12 inches of run then the roof slope is 6 in 12 the slope can be expressed numerically as a ratio.

Roof drop per foot.

Some building codes start at one quarter of an inch per foot or two percent. A roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. Adding a covered porch adds exterior space to a house and providing a.

For budget conscious homeowners metal shingles will run about 7 to 10 per square foot installed while corrugated metal sheets can be installed for 3 50 to 5 50 per square foot for materials and labor. Minimum roof pitch for a covered porch. A roof that rises 4 inches for every 1 foot or 12 inches of run is said to have a 4 in 12 slope. A roof protects a house and porch from snow and rain as well as the heat of the sun.

No you cannot install metal shingles on a low slope roof. Most metal roofs will have minimum pitches of three in twelve but this might sometimes go down depending on whether there are special installation procedures issued by the manufacturer regarding that particular roofing material. The slope ratio represents a certain amount of vertical rise for every 12 inches of horizontal run. However an ideal roof drop per foot should be at least one eighth to one quarter of an inch per foot.

Anything with a slope of some kind will cause water to run off the roof.