Top Stone and Masonry Restoration Services in Woodlyn, PA

WEATHERCAP® is a patented soft lead strip, also known as lead stone flashing, that is installed with sealant in masonry joints. It's designed to protect the sealant from environmental exposure, accommodate building movement, and prevent moisture penetration. It serves as a durable, flexible adjunct to caulk, significantly extending the life of the joint seal, especially in restoration projects.

It physically covers the sealant, shielding it from UV degradation and weather. Its soft lead construction has a low elastic modulus, allowing it to flex and 'creep' into new configurations as the building moves, which prevents the sealant from tearing or losing adhesion (margin checking). This maintains a waterproof seal and prolongs the sealant's effective lifespan significantly.

The system comes in two main configurations. Type A is a flat cap designed for joints where masonry units are in the same plane, such as copings and lintel tops. Type B is a 90-degree cove cap used for right-angle joints, like where a projecting lintel or water table meets a vertical wall. Both are available in various stock sizes and can be custom-made for specific project requirements.

Yes, absolutely. While it is widely specified for historic restoration, WEATHERCAP® is also highly effective for new construction. Integrating our system into new masonry joints from the outset provides superior, long-term protection against moisture intrusion and movement-related failures. The A-2 Type A cap is specifically designated for new construction installations.

Yes, it is ideal for historic buildings. The system is specified in the U.S. GSA's Historic Preservation Technical Procedures and has been used on countless national landmarks. Its ability to protect vulnerable, aging masonry from moisture while accommodating natural settlement makes it a preferred choice for preservation architects and contractors aiming to maintain historical integrity.

All WEATHERCAP® products are supplied in standard 6-foot lengths, allowing for easy handling and cutting to size on the job site. We maintain a full manufacturing and supply chain, and materials are typically shipped within 48 hours of an order being placed to ensure your project stays on schedule. Custom profiles and larger sizes can also be manufactured upon request for unique conditions.