Column Caps in Construction: A Complete Guide

A pillar cap, similar to a column cap, is the topmost component of a pillar. It distributes loads and provides a finished look. For long-term durability, protecting the surrounding masonry joints is crucial. Our flexible lead caps are designed to seal these joints against weather and structural shifts.

WEATHERCAP is made from a soft lead composition. This material is chosen for its unique properties: it remains flexible over time, 'creeps' into new joint configurations as buildings move, and resists corrosion and mold. This ensures a durable, long-lasting weather-tight seal for masonry joints.

Absolutely. While it's a trusted solution for historic preservation, WEATHERCAP is also specified for new construction to prevent future joint failure. Installing it from the start ensures maximum protection for masonry joints against movement, settlement, and environmental stress, extending the building's life.

WEATHERCAP works as an adjunct to sealant, shielding it from direct exposure to UV rays, rain, and ice, which prolongs its life. It also reduces the effective size of the joint opening, which minimizes stress on the sealant itself and helps prevent margin checking and failure.

The two types address different joint geometries. Type A is a flat cap designed for joints between masonry units on the same plane, such as on copings or lintel tops. Type B is a 90-degree cove cap used for right-angle joints, like where a projecting lintel meets a side wall.

All WEATHERCAP products are supplied in standard 6-foot lengths, allowing for easy handling and field cutting to fit specific joint dimensions. We maintain a full manufacturing and supply chain, and materials are typically shipped within 48 hours of an order being placed to keep projects on schedule.