16/12 roof pitch

53.13° angle

A 16/12 roof rises 16 in for every 12 in of run: a 133.3% slope with a 1.667 area multiplier.

Pitch16 in 12 (16:12)
Angle53.13°
Slope133.3%
Roof area multiplier1.6667
Rafter length per foot of run20 in
TypeA very steep roof

Roofing for a 16/12 pitch

Suitable for asphalt shingles, metal, tile and most other roofing with standard underlayment. Not walkable: roofers work from roof jacks and fall protection, which adds labor cost.

Rafter length at 16/12

Run (half the span)RiseRafter length (before overhang)
10 ft13.33 ft16.67 ft
12 ft16 ft20 ft
14 ft18.67 ft23.33 ft
16 ft21.33 ft26.67 ft

Change the numbers

Roof pitch

16/12

53.13° angle, 133.3% slope.

Pitch16 in 12
Angle53.13°
Slope133.3%
Roof area multiplier1.6667
Rafter length per foot of run20 in

Other roof pitches

Questions

What angle is a 16/12 roof pitch?
53.13 degrees.
What is a 16/12 roof pitch as a percentage?
133.3%: the roof rises 16 inches for every 12 inches of run.
What is the roof multiplier for a 16/12 pitch?
1.667. Multiply the roof’s flat footprint by 1.667 to get its actual surface area.
Is a 16/12 roof walkable?
Not walkable: roofers work from roof jacks and fall protection, which adds labor cost.

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