Next multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area.
Roofing options for 1 12 pitch roof.
Roofs on victorian era houses were often sharply angled with a steep pitch.
Minimum required slope x in 12 minimum required slope degrees asphalt shingles.
Lapped nonsoldered seam metal roofs with applied lap sealant must have a minimum roof slope of 1 2 12.
Lapped nonsoldered seam metal roofs without applied lap sealant must have a minimum roof slope of 3 12.
Think of a classic addams family haunted house with its soaring peaks and you have a.
The pitch of the roof is the rise over a 12 inch run.
Visually this roof appears flat.
At 1 12 pitch you are right at the threshold where standing seam becomes impermissible i mean true standing seam with a rolled lock seam and soldered flat seams must be used.
Coal tar built up roofs can be installed on a roof pitch of 1 8 12 or greater.
For example a 4 12 pitch roof that is 100 square feet.
There are some standing seam metal roofing options available from atas and other manufacturers that can be installed on a roof with pitch of 1 12.
A soldered flat seam metal roof won t be cheap and must be done by an artisan but it lasts a very long time.
A very low pitch roof can also be done in metal.
Roof pitch area multipliers.
Modified bitumen roofing requires a minimum roof pitch of 1 4 12 or greater.
9 46 built up roof asphalt.
In 12 0 25 in 12 1 19 built up roof coal tar pitch.
Minimum required roof slope for roofing materials.
Standing seam roof systems must have a minimum roof slope of 1 4 12.
So a roof with four inches of rise every 12 inches horizontally run would have a slope of 4 12 sometimes displayed as 4 12.
It was fashionable for modern style homes built in the 1960s to have little pitch just a barely negligible slope to help drain water.
You could also opt for a pvc flat roofing membrane.
100 1 054 105 4ft 2.
Use our roof pitch calculator to find the pitch of your roof.
So you would need to pick the right option as most regular standing seam metal roofs will require a roof pitch of 2 12 or even 3 12 at a minimum.
18 43 asphalt shingles with special underlayment requirements 2 in 12.