A 2/12 roof pitch — also called “2 over 12” — is a low-slope roof design where the roof rises 2 inches for every 12 inches of horizontal run. This creates an angle of about 9.46 degrees, giving the roof a subtle incline while still allowing for water runoff.
What Does a 2-12 Roof Pitch Represent?
With a 2/12 pitch, the roof gains 2 inches in height for every foot of horizontal span. This equals an angle of approximately 9.46 degrees and a slope of 16.67%. It’s still considered a low-slope roof, but it provides slightly better drainage than a 1/12 pitch.
- Pitch: 2/12 (or “2 over 12”)
- Angle in Degrees: 9.46°
- Slope Percentage: 16.67%
- Rafter Length (per 12 inches of run): Approximately 12.17 inches
Not sure of your roof pitch? Use our pitch calculator to get fast and accurate results.
Is a 2-12 Roof Pitch a Good Choice?
It can be — a 2/12 pitch is practical for certain applications, especially in regions with low to moderate rainfall. With proper roofing materials, this pitch can perform well while offering a sleek, modern look. Here’s why some builders choose it:
- Efficient for dry or moderate rainfall areas
- Compatible with metal roofing, membranes, and rolled roofing
- Modern, low-profile aesthetic
- Safer and easier access for maintenance
Installation & Cost Insights
A 2/12 pitch roof is relatively easy to install, with lower labor costs compared to steep slopes. However, it’s essential to use materials designed for low-slope roofs to prevent water pooling and leaks.
How Does a 2/12 Pitch Compare in Degrees to Other Roof Slopes?
At approximately 9.46 degrees, a 2/12 pitch offers more slope than the nearly flat 1/12 pitch. However, it remains much lower than mid-range options like 4/12 or 6/12 roof pitch. It provides some drainage capability while keeping the roofline low and modern.
What is the Angle in Degrees for a 2-12 Roof Pitch?
The angle of a 2/12 roof pitch is approximately 9.46 degrees. To see how it compares with other pitches, explore our roof pitch chart.
Knowing your roof pitch angle is crucial for choosing the right materials and planning proper installation techniques, especially for a low slope roof.
Where Do You See 2/12 Roof Pitches?
The 2/12 pitch is often used in specific residential and commercial designs aiming for a sleek, functional roof. You’ll commonly see this pitch in:
- Modern flat-style homes — Low-slope look with subtle drainage
- Commercial buildings — Metal panels or membrane systems for water control
- Detached garages and workshops — Simple, cost-effective roofing solution
- Porches and patio covers — Minimal pitch to guide water away
- Dry and temperate climates — Suitable where heavy rain is less frequent
Builders choose the 2/12 pitch for its affordability, ease of installation, and clean, contemporary design. When installed with proper materials, it offers reliable performance in the right conditions.
Overall, the 2/12 roof pitch is a smart option for certain projects, blending style with function while keeping construction costs manageable.