
WEATHERCAP A-8 Type A Flat Joint Cap
- Flat cap covers joints up to 1 1/2 in
- Robust 2.5 lb/ft soft lead build
- Blends with masonry after oxidizing
GSA Specified Product
U.S. Patented System
WEATHERCAP® lead preparatory arrowhead caps provide durable, long-lasting protection for masonry joints in Jonesboro. This patented system works with sealant to prevent moisture penetration by accommodating building movement. Ideal for daycare construction, historic restoration, and new builds, it extends sealant life and protects against corrosion.































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“Lead preparatory arrowhead” is a trade term for the WEATHERCAP® joint protective system. It's a soft lead strip, or cap, that is installed with sealant in masonry joints. It is designed to create a flexible, long-lasting, and weather-resistant seal that accommodates building movement and protects the underlying sealant from environmental degradation, ensuring the integrity of the structure.
Talk to our experts for custom solutions and tailored guidance.

Protecting vulnerable masonry joints on landmark structures from moisture and movement-related damage.

Ensuring weather-tight seals on copings, cornices, balustrades, and other projecting architectural elements.

Providing durable, low-maintenance joint protection for government buildings, universities, and public monuments.

Specifying long-lasting joint protection in new masonry projects to prevent future failures and maintenance costs.
Talk to our experts for custom solutions and tailored guidance.
Our WEATHERCAP® system is protected by U.S. Patent 6991400, providing a unique and exclusive solution for permanent, elastic sealing of any masonry joint.
Trusted by preservation specialists for projects like the Washington Monument and U.S. Supreme Court, our system offers proven performance and reliability.
By covering the sealant and absorbing movement, WEATHERCAP® reduces environmental stress and margin checking, significantly prolonging the life of the joint.
Get technical support for your daycare or masonry project in Jonesboro. Submit your details for CAD drawings, sizing guidance, and a detailed quote from our team.
For immediate assistance, feel free to give us a direct call at (985) 649-4000.
For immediate assistance, feel free to give us a direct call at (985) 649-4000.