Garlock Expansion Joint Overview and Applications

The soft lead cap is flexible, allowing it to move with the building's natural settlement. This prevents the sealant from tearing. It also acts as a physical barrier, shielding the underlying sealant from UV degradation, moisture, and corrosion, significantly extending its effective lifespan and protecting the masonry.

Type A is a flat cap designed for joints between masonry on the same plane, such as cross joints on copings and lintels. Type B is a 90-degree cove cap used for right-angle joints, like where a horizontal surface such as a window sill or water table meets a vertical wall.

Yes, absolutely. While renowned for historic preservation, WEATHERCAP® is also specified for new construction to provide long-term protection for masonry joints from day one. Using the system in new builds ensures the longevity and integrity of the building envelope, preventing future moisture-related issues.

WEATHERCAP® is made from a soft lead composition, chosen for its excellent flexibility, durability, and resistance to corrosion and mold. Due to its lead content, it is regulated under OSHA 29 CFR 1910.1025, and proper handling procedures should always be followed during installation.

All WEATHERCAP® products, including both stock sizes and custom orders, are supplied in standard 6-foot lengths. This allows for convenient handling and transportation on the job site, and the material can be easily cut to size to fit the specific requirements of the masonry joints being protected.

Yes, WEATHERCAP® is exceptionally well-suited for historic restoration and is a preferred choice for preservation specialists. It is specified in the U.S. General Services Administration's (GSA) Historic Preservation Technical Procedures, making it a trusted and compliant solution for protecting valuable historic masonry.