Emseal Expansion Joint Cost: Affordable Solutions & Options

WEATHERCAP® is not a sealant but a protective lead cap installed over sealant. It is designed to work as an adjunct with most high-quality, commercial-grade masonry or stone sealants. The best sealant choice depends on the specific substrate, joint size, and environmental exposure. We can provide guidance on sealant compatibility for your project's requirements.

WEATHERCAP is manufactured from a soft lead composition. This material is specifically chosen for its unique properties, including a low elastic modulus and flexibility. This allows the cap to remain pliable and 'creep' into new configurations as the building moves or settles, ensuring a continuous, weatherproof seal over the joint sealant without cracking or failing.

The system's soft lead construction has a low elastic modulus, allowing it to flex and deform without stress failure. As a building naturally settles or moves, the lead cap adapts to the new joint configuration, maintaining a protective cover over the sealant. This prevents the sealant from tearing or pulling away from the joint edges, which is a common point of failure.

Yes, absolutely. While WEATHERCAP is renowned for its use in historic preservation, it is also highly effective for new construction. Incorporating the system into new masonry projects ensures maximum joint protection and sealant longevity from the start, preventing common moisture-related issues and extending the building's maintenance cycle. The A-2 cap is specifically for new construction.

The two types are designed for different joint geometries. Type A is a flat cap used for joints between masonry units on the same plane, such as the top joints of a stone coping or balustrade. Type B is a 90-degree cove cap used for right-angle joints, like where a projecting window lintel meets a vertical wall or a window sill meets the surrounding masonry.

All WEATHERCAP® products, including Type A and Type B caps in all available sizes, are supplied in standard 6-foot lengths. This allows for easy transportation, handling, and field cutting to fit specific joint dimensions on site. Products are typically shipped within 48 hours of order placement to ensure your project stays on schedule.