Emseal Expansion Joint Cover Systems for Seismic Applications

WEATHERCAP® is a soft lead cap installed over a sealant-filled masonry joint. Its low elastic modulus allows it to flex and creep with building movement without tearing. This covers the sealant, reduces the effective joint opening, and provides a durable, weather-resistant barrier that extends the life of the underlying seal.

It is ideal for protecting horizontal and vertical masonry joints in both new construction and historic restoration. Common applications include stone copings, parapets, cornices, belt courses, window and door lintels, and water tables. Its performance is proven on numerous national landmarks, making it a top choice for preservation projects.

Yes, the lead cap can be painted to match any aesthetic requirement. If left unpainted, its surface rapidly oxidizes to a neutral grey color that blends naturally and discreetly with most stone and masonry, making it visually unobtrusive for historic facades.

Absolutely. While renowned for historic preservation, WEATHERCAP® provides long-term joint protection for new masonry construction. Our A-2 Type A flat cap is specifically designated for new-construction installation, ensuring a durable, weatherproof seal from the start and reducing future maintenance needs.

We offer two primary configurations: Type A (flat cap) for same-plane joints and Type B (90° cove cap) for right-angle joints. Both are available in a range of stock sizes to accommodate various joint widths. Custom sizes and designs can also be manufactured upon request for unique project requirements.

Yes, WEATHERCAP® is a lead product. Installers should always use gloves and wash hands and body thoroughly after handling the material. It is regulated under OSHA 29 CFR 1910.1025, and all safety guidelines should be strictly followed to ensure safe installation.