GSA Specified Product certified

GSA Specified Product

U.S. Patented System certified

U.S. Patented System

U.S. Registered Trademark certified

U.S. Registered Trademark

Concrete Masonry Block Suppliers

Explore our patented WEATHERCAP® joint protection systems, the premier solution for sealing and weatherproofing concrete masonry block and stone construction. These soft lead caps are designed to protect sealant, prevent moisture penetration, and accommodate building movement. Trusted for historic preservation and new construction, our system extends the life of masonry joints.

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

  • Protects entrance step tread and riser joints
  • Right-angle Type B configuration
  • Flexible cap moves with building settling
WEATHERCAP A-8 Type A Flat Joint Cap

WEATHERCAP A-8 Type A Flat Joint Cap

  • Flat cap covers joints up to 1.5 inch
  • Approx 2-inch outer coverage width
  • Ideal for copings and belt courses
WEATHERCAP B-8 Type B 90° Cove Cap

WEATHERCAP B-8 Type B 90° Cove Cap

  • Type B cove cap for larger joints
  • Covers joints up to 1 1/4 inch
  • Durable 2.5 lb/ft lead construction
WEATHERCAP Portico, Bracket and Pilaster Joint Protection

WEATHERCAP Portico, Bracket and Pilaster Joint Protection

  • Combined Type A & B for porticos and pilasters
  • Protects projecting architectural elements
  • Flexible lead accommodates joint movement
WEATHERCAP Building Movement and Joint-Checking Protection

WEATHERCAP Building Movement and Joint-Checking Protection

  • Reduces joint checking from building movement
  • Low elastic modulus adapts to settlement
  • Helps prevent moisture penetration failures
WEATHERCAP Historic Masonry Preservation Joint Protection

WEATHERCAP Historic Masonry Preservation Joint Protection

  • Trusted lead flashing for historic preservation
  • Weatherproofs vulnerable masonry joints
  • Suits parapets, copings, and cornices

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Frequently Asked Questions

What is a WEATHERCAP® masonry joint cap?

It is a patented soft lead strip installed with sealant in masonry joints. It protects the sealant from environmental stress and building movement, preventing cracks and moisture penetration. This extends the life of the joint and protects the entire structure from water damage.

What is the difference between Type A and Type B caps?

Can WEATHERCAP® be used in new construction?

How does WEATHERCAP® accommodate building movement?

Can the lead caps be painted?

In what lengths are the joint caps supplied?

Is this product suitable for historic preservation?

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 irreplaceable landmarks and historic buildings from moisture damage by sealing vulnerable masonry joints.

Architectural & Commercial Construction

Architectural & Commercial Construction

Ensuring long-term joint integrity and weatherproofing in new commercial and institutional masonry projects.

Government & Institutional Buildings

Government & Institutional Buildings

Specified for federal buildings, state capitols, and universities to provide maximum durability and longevity.

Residential & Custom Masonry

Residential & Custom Masonry

Providing durable, long-term weatherproofing for high-end residential masonry features like steps and window sills.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

You might also like

Why Restoration Specialists Choose Weathercap

Trusted for Historic Landmarks

Our patented system is specified for use on America's most iconic buildings, including the Washington Monument and U.S. Supreme Court, ensuring proven performance.

Patented Joint Protection

Our U.S. Patented soft lead technology flexes with building movement, extending sealant life and providing a permanent, weather-resistant seal against moisture.

Comprehensive Technical Support

We provide architects and contractors with detailed CAD drawings, sample specifications, and installation guidance to ensure successful project outcomes.

Get a Quote for Your Masonry Project

Contact our team for technical specifications, sizing guidance, and pricing. We typically ship materials within 48 hours of order placement.

Contact Us Today

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