Detail guide · Guide 23 of 101

Slate roof hips, ridges and ventilation details

Hips and ridges are highly visible terminations exposed to wind and weather. The finish must secure the top courses, shed water and, when ventilation is required, preserve a continuous air path.

01

Select the termination as a system

Slate saddle ridges, metal ridges, comb details and other traditional or contemporary approaches have different fastening and weathering requirements. The chosen detail should match the roof geometry, slate thickness, architecture and expected maintenance.

02

Top courses need complete planning

The final field courses may require adjusted slate lengths or exposure so adequate lap is maintained beneath the ridge. Waiting until the last course to solve the termination can produce small pieces, poor fastening or uneven lines.

03

A vented ridge needs open area and weather protection

Ventilation design should establish intake, exhaust and a clear air channel before the ridge is built. The vent product or custom detail must suit slate thickness and resist wind-driven water, insects and snow while allowing future service.

Further technical reading

Recognized sources behind this guide

Slate Boss writing is original. These links provide additional standards, preservation guidance and industry reference material.

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