GSA Specified Product certified

GSA Specified Product

U.S. Patented System certified

U.S. Patented System

Emseal Expansion Joint 480: Installation and Benefits Guide

A comprehensive guide to high-performance masonry joint protection systems. Discover the benefits of WEATHERCAP's patented soft lead technology for extending sealant life, preventing moisture penetration, and accommodating building movement in both historic 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 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 B-2 Type B 90° Cove Cap
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 A-4 Type A Flat Joint Cap
WEATHERCAP Custom and Large-Size Masonry Joint Caps
WEATHERCAP Masonry Moisture Penetration Protection
WEATHERCAP Glass Block Perimeter Joint Protection
WEATHERCAP Horizontal and Vertical Masonry Joint Protection
WEATHERCAP Building Movement and Joint-Checking Protection
WEATHERCAP Masonry Sealant Protection System

Our Range of Products

WEATHERCAP Entrance Step Joint Protection

WEATHERCAP Entrance Step Joint Protection

  • Protects entrance step tread and riser joints
  • 90° cove cap for right-angle step joints
  • Flexible lead withstands foot traffic movement
WEATHERCAP A-8 Type A Flat Joint Cap

WEATHERCAP A-8 Type A Flat Joint Cap

  • Largest flat cap, joints up to 1.5 inches
  • Wide 2in outer coverage for big joints
  • Heavy-duty 2.5 lb/ft lead construction
WEATHERCAP B-8 Type B 90° Cove Cap

WEATHERCAP B-8 Type B 90° Cove Cap

  • Largest cove cap, joints up to 1.25 inches
  • Perpendicular anchorage only design
  • Heavy-duty 2.5 lb/ft lead construction
WEATHERCAP Portico, Bracket and Pilaster Joint Protection

WEATHERCAP Portico, Bracket and Pilaster Joint Protection

  • Protects porticos, brackets, pilasters
  • Type A & B combined for projecting elements
  • Soft lead accommodates joint movement
WEATHERCAP Historic Masonry Preservation Joint Protection

WEATHERCAP Historic Masonry Preservation Joint Protection

  • Ideal for historic masonry preservation
  • Combined Type A & B flexible protection
  • Weatherproofs vulnerable restoration joints
WEATHERCAP A-6 Type A Flat Joint Cap

WEATHERCAP A-6 Type A Flat Joint Cap

  • Flat cap fits joints up to 1 1/4 inch
  • Wide 1.5in outer coverage for large joints
  • 0.83 lb/ft heavy-duty lead cap

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Frequently Asked Questions

Is Emseal water tight?

While Emseal products are designed for watertightness, persistent building movement can challenge any sealant. WEATHERCAP is a patented system used with sealants to provide a secondary line of defense, protecting against leaks caused by joint checking and extending the sealant's life.

What is the WEATHERCAP system made of?

Is WEATHERCAP suitable for new construction projects?

What types of masonry joints can WEATHERCAP protect?

How does WEATHERCAP extend the life of a sealant?

Can WEATHERCAP be painted to match the surrounding masonry?

How is WEATHERCAP supplied and what are the lead times?

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 landmark buildings by providing a durable, flexible seal for vulnerable masonry joints.

Government & Institutional

Government & Institutional

Specified for federal, state, and university buildings to ensure long-term structural integrity and weatherproofing.

Architectural & New Construction

Architectural & New Construction

Specified by architects for new projects to protect complex masonry details like copings, cornices, and lintels.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

You might also like

Why Restoration Experts Choose Weathercap

Proven on Iconic Landmarks

Trusted for preserving America's most treasured structures, including the Washington Monument, U.S. Supreme Court, and Smithsonian Institution.

Patented Joint Protection

Our unique soft lead system (U.S. Patent 6991400) is engineered to accommodate building movement, extending sealant life and preventing leaks.

GSA-Specified Solution

Specified in the U.S. General Services Administration's Historic Preservation Technical Procedures, ensuring compliance for federal projects.

Get a Quote for Your Masonry Project

Contact us for technical specifications, CAD drawings, sizing guidance, or to request pricing. Our team is ready to assist with your project needs.

Contact Us Today

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