
WEATHERCAP A-8 Type A Flat Joint Cap
- Largest flat cap for joints up to 1.5 in
- 2 in outer coverage for wide joint spans
- Durable 2.5 lb/ft soft lead construction
GSA Specified Product
U.S. Patented System
An essential guide to protecting masonry structures with the WEATHERCAP® joint protection system. Explore our patented soft lead caps, designed to weatherproof and extend the life of sealant in masonry joints for historic restoration, new construction, and architectural applications. This system prevents moisture penetration and accommodates building movement, ensuring long-term structural integrity.
































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WEATHERCAP® is a patented soft lead strip system designed to be used with sealant in masonry joints. It protects the sealant from environmental exposure and stress caused by building movement, preventing moisture penetration and extending the life of the joint. It is available in flat (Type A) and 90-degree (Type B) configurations to suit different applications.
Talk to our experts for custom solutions and tailored guidance.

Protecting landmark structures by providing a durable, flexible seal for vulnerable masonry joints.

Ensuring long-term weatherproofing for critical public buildings like capitols, museums, and universities.

Specified in new projects to proactively protect masonry joints and extend the life of sealants from day one.

Preserving the integrity of detailed architectural elements like cornices, lintels, balustrades, and copings.
Talk to our experts for custom solutions and tailored guidance.
Trusted for projects like the Washington Monument and U.S. Supreme Court, our system is the proven choice for preserving America's iconic structures.
Our unique, patented soft lead cap system (U.S. Patent 6991400) offers unparalleled, exclusive protection against moisture and building movement.
Officially specified in the U.S. General Services Administration's Historic Preservation Technical Procedures, ensuring compliance for government projects.
Contact our team for detailed product information, CAD drawings, sample specifications, and to discuss your project's unique requirements.
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.