Roof Terminology – Highest line where opposite roof slopes meet In a pitched roof, what is the correct name for the highest horizontal line formed where two opposite slopes meet?

Introduction / Context:Knowing the correct names for roof components is essential for detailing, measurement, and communication on drawings. The line where two slopes of a pitched roof meet at the top has a specific term.

Given Data / Assumptions:

• Pitched roof with two opposite slopes.
• Focus on the highest meeting line at the top.
• Standard roofing terminology.

Concept / Approach:The topmost horizontal intersection of two roof planes is the ridge. The eaves are the lower edges; hips are external sloping edges; valleys are internal sloping intersections; rafters are the inclined framing members supporting the roof surface.

Step-by-Step Solution:Identify location: highest meeting line → ridge.Differentiate from eave (bottom edge) and hip (external angle).Confirm correct term among options.

Verification / Alternative check:Specifications refer to ridge tiles or ridge flashing installed along this line to weatherproof the joint.

Why Other Options Are Wrong:

• Rafter: a structural member, not the line.
• Crown: colloquial, not the standard roofing term.
• Eave: the lower edge.
• Hip: sloping external angle, not the topmost horizontal line.

Common Pitfalls:Confusing hips and ridges on complex roofs; hips run downward on external corners, ridges run horizontally at the apex.

Final Answer:Ridge