Oatey Metal Roof Flashing: Durable & Reliable Solutions

The primary benefit is prolonging sealant life by protecting it from UV exposure and physical stress. The soft lead is flexible, accommodating building movement without tearing. It resists corrosion and mold, oxidizes to a neutral grey that blends with masonry, and can be painted. This system provides a more durable, weather-resistant seal than sealant alone, reducing long-term maintenance costs.

They are used in horizontal and vertical masonry joints, particularly in historic preservation. Common applications include protecting joints on parapets, copings, cornices, belt courses, window and door lintels, sills, and entrance steps. The system is specified for use on government buildings, national landmarks, universities, and other significant structures where long-term joint integrity is critical.

Type A is a flat-cap configuration designed for joints where masonry units are in approximately the same plane, such as the top joints of copings or lintels. Type B is a 90-degree cove-cap configuration used for right-angle joints, like where a horizontal stone sill meets a vertical wall. The choice depends entirely on the geometry of the specific joint being protected.

Yes, while widely used in historic restoration, the WEATHERCAP system is highly effective for new construction. Specifically, the A-2 Type A cap is designated for new installation only. Integrating the system into new masonry provides superior, long-term protection for sealant joints from the outset, preventing premature failure and reducing future maintenance needs for the building's exterior envelope.

The soft lead has a low elastic modulus, allowing it to deform and 'creep' into new configurations under sustained stress from building movement or settlement. Instead of resisting the force and failing, it adapts to the new joint shape, maintaining a continuous seal and preventing moisture from penetrating the joint. This inherent flexibility is key to its long-term performance and durability.

Yes. While we offer a wide range of stock sizes in both Type A (flat) and Type B (cove) configurations, we can also manufacture custom and larger sizes upon request. This is particularly useful for historic preservation projects with non-standard joint dimensions or unique architectural details. Contact us with your project specifications to discuss a custom solution.