Copper Flashing Options at Lowe's for Roofing Projects

Type A is a flat cap configuration designed for masonry units set in approximately the same plane, such as coping or balustrade joints. Type B is a 90-degree cove cap used for right-angle joints, like where a window sill meets a wall or at cornices. The choice depends entirely on the geometry of the joint being sealed.

The soft lead construction is key to its performance. It has a low elastic modulus, allowing it to remain flexible and 'creep' into new joint configurations as a building moves or settles. This prevents the cap from tearing or shearing while continuously protecting the underlying sealant from stress and weather exposure.

Yes, absolutely. While it's renowned for historic preservation, WEATHERCAP® is also highly effective for new construction projects. It provides long-term durability for joints in new parapets, copings, window details, and other exterior masonry elements. The A-2 Type A cap is specifically designated for new construction installation.

WEATHERCAP® is installed as an adjunct to a compatible masonry sealant. The joint is first filled with sealant, and then the lead cap is embedded into it. This method ensures the cap is securely anchored while covering the sealant to protect it. We provide detailed installation guidance and technical support for specific applications.

Yes. While we offer a wide range of stock sizes in our A-Series and B-Series to fit common joint dimensions, we can also manufacture custom and larger sizes upon request. This is particularly useful for non-standard restoration details or unique architectural specifications in historic preservation projects.

WEATHERCAP® is designed to be used with high-quality, compatible masonry or stone caulk/sealant. The specific type of sealant can vary based on the substrate and project requirements. We provide technical information and sample specifications to help architects and contractors select the appropriate sealant for optimal performance.