
WEATHERCAP Joint Protective System (Lead Stone Flashing / Tee Caps)
- Soft lead flexes with building movement, no cracking
- Oxidizes to neutral grey, blends with masonry
- Extends sealant life by reducing exposure
GSA Historic Preservation Specified
U.S. Patent 6991400
WEATHERCAP masonry accessories provide a patented soft lead joint protective system for horizontal and vertical masonry joints. Designed to flex with building movement, resist corrosion, and extend sealant life, these accessories protect parapets, copings, cornices, and joints in both new construction and historic restoration projects.


Masonry accessories are supplementary products used alongside brick, stone, or block construction to improve durability, weatherproofing, and structural performance. Examples include joint protection systems like WEATHERCAP, flashing, ties, and reinforcement products that protect mortar joints from moisture penetration and accommodate building movement over time.
Talk to our experts for custom solutions and tailored guidance.

Protects mortar joints on landmark buildings during restoration while preserving original architectural appearance.

Installed during new masonry construction to protect joints from moisture and accommodate future building movement.

Used on federal buildings, courthouses, and monuments requiring durable, long-lasting joint weatherproofing.

Protects masonry joints on university buildings, museums, and cultural landmarks against weather-related degradation.
Talk to our experts for custom solutions and tailored guidance.
Trusted on 28+ national landmarks including the Washington Monument, U.S. Supreme Court, and Smithsonian Institution.
U.S. Patent 6991400 protects our soft lead system that flexes permanently with building movement without cracking.
Full manufacturing and supply chain operate daily, shipping 6-foot lengths within 48 hours of order placement.
Submit your project details and our team will respond with product specifications, sample details, and pricing information.
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.