To find your roof’s total square footage:
- Measure the length and width of each plane on the roof (including dormers) then multiply length times width.
- Add the square footage of each of the planes together.
Most common roof pitch
Conventional slope roofs are most common with residential roofs. This means the slope has a pitch between 4/12 and 9/12 on most homes. Roofs with a pitch exceeding 9/12 are called steep slope roofs.
Footage is Not the Same as Home Square Footage
Depending on where the information is coming from is going to determine the basis on which the estimated roof footage is calculated. The roof square footage is what we (roofing contractor) need to calculate a budget quote to do the job.
Depending on where the information is coming from is going to determine the basis on which the estimated roof footage is calculated. The roof square footage is what we (roofing contractor) need to calculate a budget quote to do the job.
What roof pitch is 30 degrees?
A 30° roof pitch is roughly the same as a 7/12 roof pitch. To convert from degrees to the American ratio: Find the tangent of the angle, tan(angle).
A 7:12 roof pitch means that for ever 12″ of horizontal distance the roof will increase in height by 7″. … The following diagram will let you easily convert roof pitch to degrees; a 7:12 pitch equals 30.26 degrees.
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| Conversions Table | |
|---|---|
| 10 Square Feet to Roofing Squares = 0.1 | 800 Square Feet to Roofing Squares = 8 |
| 20 Square Feet to Roofing Squares = 0.2 | 900 Square Feet to Roofing Squares = 9 |
| 30 Square Feet to Roofing Squares = 0.3 | 1,000 Square Feet to Roofing Squares = 10 |
How many bundles of shingles do I need for a 2000 square foot house?
The number of bundles or squares you need will depend on the surface area of your roof, and its pitch or slope. For example, a 2,000 square foot roof will require 20 squares or 60 bundles. A professional will likely purchase slightly more materials than necessary to ensure there is extra material if needed.
What’s a normal pitch roof?
The most commonly used roof pitches fall in a range between 4/12 and 9/12. Pitches lower than 4/12 have a slight angle, and they are defined as low-slope roofs. Pitches of less than 2/12 are considered flat roofs, even though they may be very slightly angled.
Is a 4/12 roof pitch good?
As well, a slope of 4:12 is most commonly considered the lowest slope for “standard shingle installations”. Most manufacturer and industry recommendations require, or at the very least recommend, special underlayment or other considerations on roofs between 2:12 and 4:12.
What is a 9/12 roof pitch?
9/12 roof pitch equivalents roof rises 9″ in a length of 12″. 9/12 roof pitch angle = 36.87 degrees.
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