An astragal is a molding profile often incorporated into doors, particularly double doors. When used with doors, it serves to seal the gap between the two doors when closed. Typically, it is attached to one of the doors and overlaps the other, creating a weather-tight and secure seal. This component can often be sourced from major home improvement retailers.
The inclusion of this sealing element provides several key benefits. It significantly reduces drafts and air leakage, contributing to energy efficiency and lower utility bills. Furthermore, it enhances security by creating a tighter interlock between the doors, making forced entry more difficult. Historically, these have been used to improve the insulation and security of homes and buildings, evolving in design and materials over time.
