Roof slope, or pitch, is the measure of a roof’s steepness, typically expressed as a ratio of the vertical rise to the horizontal run (e.g., 4:12).

Key Points:

• Steeper slopes facilitate better water runoff and are common in areas with heavy rainfall or snow.
• Shallower slopes may require additional waterproofing measures.
• Influences the choice of roofing materials and overall architectural style.