Nystrom Expansion Joint Systems for Durable Construction

They are primarily used in horizontal and vertical masonry joints, especially in historic preservation and new construction. Common applications include copings, parapets, cornices, belt courses, window and door lintels, and sills, where long-term weatherproofing is critical.

The soft lead is highly flexible and has a low elastic modulus. This allows it to 'creep' and adapt to building movement and settlement without tearing or shearing. This unique flexibility protects the underlying sealant from stress, preventing cracks and failure over time.

Yes, absolutely. While renowned for historic restoration, Weathercap systems are frequently specified for new construction to ensure maximum durability from the start. The A-2 Type A cap is specifically designed for new installations, providing long-term protection for masonry joints.

Type A caps feature a flat configuration and are used for joints where masonry units are in the same plane, such as the top of a coping or a lintel. Type B caps have a 90-degree cove shape designed for right-angle joints, like where a cornice meets a wall.

All Weathercap products are supplied in standard 6-foot lengths, which can be easily cut and fitted on-site to meet project requirements. This standardized length facilitates shipping and handling. Most orders for stock sizes are shipped within 48 hours of placement.

Yes, as these are lead products, safety precautions are necessary. Always wear gloves and wash hands thoroughly after handling. The material is regulated under OSHA 29 CFR 1910.1025, and all relevant safety information and technical procedures are available for review.