Expansion Joint Flashings and Covers

Fixing a failed expansion joint typically involves removing the old, degraded sealant, cleaning the joint thoroughly, and applying new, high-quality sealant. For a long-term solution, installing a protective cover like WEATHERCAP over the new sealant shields it from UV rays and weather, preventing premature failure and extending the repair's lifespan.

To properly seal an expansion joint, first ensure it's clean and dry. Install a backer rod to control sealant depth, then apply a suitable sealant like urethane or silicone. For maximum durability, a protective flashing such as WEATHERCAP should be interposed within the joint to cover the sealant, reducing its exposure and accommodating movement.

A roof expansion joint is a gap that separates sections of a large roof to allow for independent movement. This prevents damage to the roofing membrane and structure from thermal expansion and contraction. They are often found at parapet walls and coping joints, where our flashing provides an effective, weatherproof seal against the elements.

Construction details include the structural gap between building sections, a backer rod to ensure proper sealant geometry, the flexible sealant itself, and often a protective cover or flashing. Our WEATHERCAP system acts as this protective flashing, designed to be integrated into the joint to shield the sealant and provide a durable, weather-resistant finish.

Specifications for an expansion joint depend on the building's materials, anticipated movement, geographic location, and exposure. Key specs include joint width, sealant type, and the required fire or weather resistance. Our system's specifications include soft lead construction, multiple sizes, and Type A (flat) or Type B (90-degree) designs to meet various project requirements.

Compression flashing is a type of seal that works by being compressed into a joint, relying on constant pressure to keep out water. While effective in some applications, our WEATHERCAP system is different. It acts as a protective cover that flexes and 'creeps' with building movement, shielding the primary sealant rather than relying on compression for its seal.