When sealing ridges for clay tile, which method is appropriate?

When sealing ridges for clay tile, which method is appropriate?

• A. Mortar only
• B. Cement mortar or mastic
• C. Caulk only
• D. Tape

Answer: (B)

Sealing ridges on a clay tile roof requires a sealant that remains durable under sun and weather while accommodating some movement from temperature changes. Cement mortar provides a solid, traditional bed for ridge caps, creating a reliable weatherproof seal. Mastic offers a flexible alternative that can accommodate expansion and contraction while still bonding well to clay tile and ridge components. Caulk alone degrades with UV exposure and aging, and tape isn’t designed to withstand roof weather and wind. So the appropriate method is to use cement mortar or mastic for a proper, long-lasting ridge seal.

Sealing ridges on a clay tile roof requires a sealant that remains durable under sun and weather while accommodating some movement from temperature changes. Cement mortar provides a solid, traditional bed for ridge caps, creating a reliable weatherproof seal. Mastic offers a flexible alternative that can accommodate expansion and contraction while still bonding well to clay tile and ridge components. Caulk alone degrades with UV exposure and aging, and tape isn’t designed to withstand roof weather and wind. So the appropriate method is to use cement mortar or mastic for a proper, long-lasting ridge seal.