How many weep holes are generally required per lite of glass or panel in a glazing installation?

In glazing installations, weep holes are crucial for ensuring that any water that enters the glazing system can effectively drain away, preventing potential damage and water accumulation. The typical requirement for the number of weep holes is generally at least two per lite of glass or panel. This allows for adequate drainage and helps avoid moisture-related problems, such as mold growth and material degradation.

Having two weep holes ensures that there is a path for water to exit from multiple points, which is especially important in preventing stagnation and encouraging proper drainage. A single weep hole, while functional, may not provide sufficient drainage capacity, leading to access issues for water escaping in certain conditions. More than two may introduce unnecessary complexity without adding significant benefits.

Thus, the answer of two weep holes per lite is reflective of best practices in glazing installations, ensuring both functionality and durability of the system while minimizing risks associated with water intrusion.