What is the primary function of the weathering strip in window estimates?

The primary function of the weathering strip in window estimates is to ensure proper sealing against weather. Weathering strips are essential components installed around windows to prevent the ingress of water, air, and dust, thereby protecting the integrity of the building's interior from external weather conditions. These strips create a barrier that enhances the window's ability to withstand various environmental factors, contributing to the overall durability and functionality of the window installation.

While aesthetic value and decorative elements may be considerations in window design, they are not the primary role of weathering strips. Similarly, although weathering strips can indirectly impact thermal insulation by ensuring a good seal, their main purpose is focused on preventing weather-related issues. Therefore, the effective sealing against the elements is crucial for maintaining a comfortable and energy-efficient indoor environment.