
WEATHERCAP Joint Protective System (Lead Stone Flashing / Tee Caps)
- Soft lead flexes with building movement, no leaks
- Oxidizes to grey, blending naturally with masonry
- Extends sealant lifespan by reducing exposure
GSA Historic Preservation Listed
U.S. Patent 6991400
Registered U.S. Trademark
This category covers Masonry and Construction Supplies including the patented WEATHERCAP Joint Protective System, a soft lead flashing solution engineered to shield caulk and sealant joints in masonry structures from moisture penetration, building movement, and settlement across horizontal and vertical applications.


Masonry joint protection products like WEATHERCAP are available directly from the manufacturer via phone or online contact, as well as through masonry and building material distributors who stock the product for contractors performing restoration and new construction work across the United States.
Talk to our experts for custom solutions and tailored guidance.

Protects mortar joints on landmark facades during restoration, preventing moisture damage while preserving original stone appearance.

Installed during new builds to protect sealant joints at parapets, cornices, and belt courses from moisture and movement.

Protects joints on federal buildings, courthouses, and monuments requiring long-term weatherproofing durability and compliance.

Used on university buildings to prevent water infiltration at cornices, balustrades, and railings on stone structures.
Talk to our experts for custom solutions and tailored guidance.
Installed on the Washington Monument, U.S. Supreme Court, and Smithsonian Institution, demonstrating reliability on demanding historic masonry projects.
U.S. Patent 6991400 covers a soft lead system that flexes with building movement while keeping sealant protected and joints watertight.
Full in-house manufacturing and supply chain allow orders to ship in 6-foot lengths within 48 hours of placement.
Submit your project details and our team will follow up with product specifications, CAD drawings, 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.