9:12 Roof Pitch
9/12 is a dramatic steep pitch suitable for premium roofing materials and traditional architectural styles that demand vertical drama.
⛰️ Steep Pitch
Pitch Ratio
9:12
Angle
36.9°
Slope
75.0%
Rise per 12" Run
9 inches
🏠 Common Uses for 9:12 Pitch
- •Tudor and gothic revival styles
- •Victorian homes
- •High-end traditional designs
- •Alpine and mountain homes
🌦️ Best Climate Fit
- •Heavy snow regions (Alps, Rockies, Upper Midwest)
- •Cold climates with ice concerns
- •High-rainfall mountainous areas
✅ Advantages
- ✓Dramatic, architectural statement
- ✓Excellent for shedding heavy snow
- ✓Maximizes usable attic space (can convert to living space)
- ✓Reduces heat buildup — shingles last longer
- ✓Supports all premium materials including slate
⚠️ Drawbacks
- ×Significantly higher material and labor cost
- ×Steep learning curve for installers — need specialists
- ×Harder to insure in some regions
- ×Special safety equipment required for all work
🧱 Recommended Materials for 9:12
Architectural ShinglesStanding Seam MetalClay TileSlate (premium)Cedar Shakes
About 9:12 Pitch
A 9:12 (also written as 9/12) roof pitch means the roof rises 9 inches for every 12 inches of horizontal distance. Expressed as an angle, this is approximately 36.9 degrees, with a slope of 75.0%.
Metal roofing, slate, clay/concrete tiles, or cedar shakes. Steep pitch provides excellent drainage and durability.
Compared to a flat roof of the same footprint, a 9:12 pitch roof has about 25.0% more surface area due to the slope. Factor this into your material calculations using a pitch multiplier of ×1.250.