Vertical Masonry Foundation Elements Overview and Design

Using WEATHERCAP® over sealant alone extends the joint's life significantly. The lead cap shields the sealant from UV degradation, reduces the effective joint opening size, and absorbs stress from building movement. This prevents the sealant from checking or pulling away from the masonry, ensuring a long-term, moisture-proof barrier that resists corrosion and mold.

Type A is a flat cap configuration designed for joints where masonry units are set in approximately the same plane. It's ideal for cross joints on copings, cornices, and lintels. Type B is a 90-degree cove cap used for right-angle joints, such as where a horizontal surface like a water table or window sill meets a vertical wall.

Yes, WEATHERCAP® is highly effective for new construction as well as historic restoration. Installing the system during initial construction provides proactive, long-term protection for masonry joints, preventing future issues related to building settlement and movement. The A-2 Type A cap is specifically designated for new-construction installation, though other types are also used.

The soft lead used in WEATHERCAP® has a low elastic modulus and low creep strength. This means that as the building moves or settles, the lead cap flexes and 'creeps' into the new joint configuration without creating stress or breaking the seal. Unlike rigid materials, it permanently adapts to changes, ensuring the joint remains protected against moisture penetration over time.

All WEATHERCAP® products, including both stock sizes and application-specific systems, are supplied in standard 6-foot lengths. This allows for easy transportation and handling on the job site and enables contractors to cut the pieces to the precise size needed for each specific masonry joint, ensuring a perfect fit for various architectural details and conditions.

Yes, WEATHERCAP® can be painted to match the surrounding masonry or architectural trim for aesthetic purposes. If left unpainted, the soft lead surface will naturally oxidize to a dead neutral grey color, which blends seamlessly with most stone and masonry, making it visually unobtrusive while providing superior joint protection.