Hot Pour Expansion Joint Systems for Durable Construction

A hot pour joint sealer is a flexible, asphalt or rubber-based material that is heated to a liquid state and poured into expansion joints, typically in pavement or concrete slabs. It cools to form a flexible, watertight seal. While effective for horizontal surfaces, it is not suitable for the vertical and complex masonry joints where the WEATHERCAP system excels by protecting modern sealants.

WEATHERCAP is installed over a sealant-filled joint. Its soft lead construction covers the sealant, shielding it from direct sunlight, rain, and temperature fluctuations. This protection dramatically extends the sealant's life. The lead also 'creeps' and flexes with building movement, preventing the sealant from tearing or losing adhesion, a common failure point in masonry joints.

Yes, absolutely. While renowned for historic preservation, WEATHERCAP is also specified for new construction projects requiring maximum durability. It provides long-term protection for masonry joints in new buildings, preventing future issues with moisture penetration and sealant failure. Our A-2 Type A cap is specifically designed for new-construction installation.

Type A is a flat cap designed for joints where masonry units are in the same plane, such as the top joints of copings, lintels, and balustrades. Type B is a 90-degree cove cap used for right-angle joints, such as where a horizontal stone sill meets a vertical wall or at the perimeter of a window frame. Both types ensure a continuous, protected seal.

Yes, WEATHERCAP can be painted to match the surrounding masonry or architectural elements. If left unpainted, its surface naturally oxidizes to a neutral grey color that blends seamlessly with most stone and masonry, making it visually unobtrusive while providing superior protection to the underlying joint sealant.

We maintain a full manufacturing and supply chain to ensure rapid fulfillment. Materials are typically shipped within 48 hours of order placement. Our products are supplied in standard 6-foot lengths, allowing for efficient transport and field cutting to fit specific project requirements. Custom orders may have different lead times.