How Do Windows Keep Water Out in Wind and Rain?

A leak on a rainy day is often blamed on a bead of sealant, but weather resistance is a system issue. Wind-driven rain can find its way into any weak point in the frame, drainage path, or connection to the wall.

What to Consider

A well-designed system directs any water that reaches the outer chamber toward controlled drainage paths. Multiple seals, correctly located weep holes, pressure-equalized cavities, and properly detailed frame-to-wall connections all contribute to a dependable result.

IGNIS Guidance

During planning and acceptance, ask how water is drained and verify the opening, exterior waterproofing, frame alignment, sealant joints, and finished-product protection as one coordinated process.