Specified in U.S. General Services Administration Historic Preservation Technical Procedures certified

U.S. GSA Specified

U.S. Patent 6991400 certified

U.S. Patented System

Universal Hinged Expansion Joint Manufacturer in the US

Explore our patented solutions for masonry joint protection, an alternative approach for managing building movement in the US. Our soft lead caps are designed to protect sealant in horizontal and vertical joints, extending its life and preventing moisture penetration. Ideal for historic preservation, restoration, and new construction projects.

WEATHERCAP Entrance Step Joint Protection
WEATHERCAP A-8 Type A Flat Joint Cap
WEATHERCAP B-8 Type B 90° Cove Cap
WEATHERCAP Portico, Bracket and Pilaster Joint Protection
WEATHERCAP Building Movement and Joint-Checking Protection
WEATHERCAP Historic Masonry Preservation Joint Protection
WEATHERCAP A-6 Type A Flat Joint Cap
WEATHERCAP Water Table Joint Protection
WEATHERCAP Window and Door Frame Joint Protection
WEATHERCAP Balustrade Joint Protection
WEATHERCAP Window Sill Joint Protection
WEATHERCAP B-4 Type B 90° Cove Cap
WEATHERCAP A-2 Type A Flat Joint Cap
WEATHERCAP B-3 Type B 90° Cove Cap
WEATHERCAP Joint Protective System (Lead Stone Flashing / Tee Caps)
WEATHERCAP Type A Flat Joint Cap
WEATHERCAP Lead Arrowhead Masonry Joint Caps
WEATHERCAP Corner and Fillet Joint Protection
WEATHERCAP Custom and Large-Size Masonry Joint Caps
WEATHERCAP Masonry Moisture Penetration Protection
WEATHERCAP B-2 Type B 90° Cove Cap
WEATHERCAP Glass Block Perimeter Joint Protection
WEATHERCAP Horizontal and Vertical Masonry Joint Protection
WEATHERCAP New Construction Masonry Joint Protection
WEATHERCAP B-6 Type B 90° Cove Cap
WEATHERCAP Cornice and Belt Course Joint Protection
WEATHERCAP Type B 90° Cove Cap
WEATHERCAP Window and Door Lintel Joint Protection
WEATHERCAP A-3 Type A Flat Joint Cap
WEATHERCAP Coping and Parapet Joint Protection
WEATHERCAP Masonry Sealant Protection System
WEATHERCAP A-4 Type A Flat Joint Cap

Our Range of Products

WEATHERCAP Entrance Step Joint Protection

WEATHERCAP Entrance Step Joint Protection

  • Type B cap for entrance step joints
  • Covers tread, riser and stringer joints
  • Flexible lead resists corrosion and mold
WEATHERCAP A-8 Type A Flat Joint Cap

WEATHERCAP A-8 Type A Flat Joint Cap

  • Largest flat cap for 1 1/2 inch joints
  • Robust 2.5 lb/ft heavy-duty size
  • Covers copings, cornices and window heads
WEATHERCAP B-8 Type B 90° Cove Cap

WEATHERCAP B-8 Type B 90° Cove Cap

  • Largest cove cap for 1 1/4 inch joints
  • Heavy-duty 2.5 lb/ft construction
  • Perpendicular anchorage for stability
WEATHERCAP Portico, Bracket and Pilaster Joint Protection

WEATHERCAP Portico, Bracket and Pilaster Joint Protection

  • Combined Type A & B for complex projections
  • Protects porticos, brackets & pilasters
  • Soft lead accommodates ongoing movement
WEATHERCAP Building Movement and Joint-Checking Protection

WEATHERCAP Building Movement and Joint-Checking Protection

  • Adjunct protection for settling buildings
  • Low elastic modulus absorbs movement
  • Reduces moisture penetration risk
WEATHERCAP Historic Masonry Preservation Joint Protection

WEATHERCAP Historic Masonry Preservation Joint Protection

  • Purpose-built for historic masonry restoration
  • Combined Type A & B configurations available
  • Weatherproofs vulnerable stone joints

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Frequently Asked Questions

What is the WEATHERCAP® system?

It is a patented protective system for masonry joints featuring a soft lead strip. Installed with sealant, it covers the joint to prevent moisture intrusion, extend sealant life, and accommodate building movement. It is a proven solution for both historic restoration and new construction, often used on parapets, cornices, and balustrades.

What material is WEATHERCAP® made from?

How does WEATHERCAP® protect masonry joints?

What are the main applications for this system?

Are there different types of WEATHERCAP® caps available?

Can WEATHERCAP® be used in new construction projects?

What is the lead time for orders?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Historic Preservation & Restoration

Historic Preservation & Restoration

Protecting vulnerable masonry joints in landmark structures to prevent moisture damage and preserve architectural integrity.

Government & Institutional Buildings

Government & Institutional Buildings

Specified for use on federal buildings, state capitols, and universities to ensure long-term weatherproofing and durability.

New Architectural Construction

New Architectural Construction

Incorporated into new designs to provide superior, lasting protection for masonry joints in high-value commercial buildings.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Why Architects in the US Choose Weathercap

Proven on National Landmarks

Our WEATHERCAP® system is trusted on America's most iconic buildings, including the Washington Monument and the U.S. Supreme Court.

Patented Protection Technology

We hold a U.S. Patent for our unique soft lead joint protection system, ensuring an exclusive, proven solution for masonry movement.

Specified for Historic Use

Recognized for its effectiveness, our product is specified in the U.S. General Services Administration's Historic Preservation Technical Procedures.

Get a Quote for Your Masonry Project in the US

Contact our specialists today for technical information, sizing guidance, and pricing for your new construction or restoration project.

Contact Us Today

For immediate assistance, feel free to give us a direct call at (985) 649-4000.