
WEATHERCAP A-8 Type A Flat Joint Cap
- Largest A-8 cap for joints under 1 1/2 inch
- Robust 2.5 lb/ft heavy-duty flat-cap
- Wide 2-inch outer coverage protection
GSA Specified for Historic Preservation
U.S. Patented System
Discover WEATHERCAP's patented masonry joint protection systems. Our soft lead flashing is engineered to cover and protect sealant, preventing moisture penetration and failure caused by building movement. Ideal for historic preservation and new construction, our system extends the life of masonry joints, ensuring long-term structural integrity and weatherproofing.
































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A stone plinth is a base or platform upon which a column, pedestal, statue, or monument rests. It is typically made of stone and serves to elevate the object it supports, providing a solid foundation and enhancing its visual prominence in architecture or garden design.
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Protecting irreplaceable landmarks and historic buildings from moisture damage by reinforcing vulnerable masonry joints.

Specified for federal buildings, state capitols, and universities to ensure long-term structural integrity and reduce maintenance.

Integrating durable, flexible joint protection into new architectural designs for superior longevity and weatherproofing.

Weatherproofing complex joints in copings, cornices, balustrades, and projecting window and door lintels.
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Trusted for over 30 years on America's most iconic structures, including the Washington Monument and U.S. Supreme Court, ensuring reliability.
Our unique soft lead system (U.S. Patent 6991400) flexes with building movement, preventing joint failure where rigid solutions cannot.
WEATHERCAP covers sealant from UV, moisture, and stress, dramatically reducing maintenance cycles and protecting your investment.
Submit your project details and our team will provide technical documentation, CAD drawings, and a detailed quote to meet your needs.
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.