The U.S. Department of Energy provides guidance on exterior door threshold weatherstripping materials, including foam tape, felt, and vinyl, to improve energy efficiency.
This Old House discusses various weatherstripping materials for exterior doors, such as bronze, copper, and aluminum, and their effectiveness in sealing gaps.
Researchers from the University of California, Berkeley, published a study on exterior door threshold seals, comparing the performance of different materials, including silicone and polyurethane.
The Home Depot offers a range of exterior door weatherstripping options, including door sweeps, threshold seals, and adhesive-backed foam tape, from various manufacturers.
A video tutorial by The King of Random provides tips and tricks for choosing the right weatherstripping for exterior doors, including considerations for door type, climate, and durability.
The National Association of the Remodeling Industry (NARI) provides best practices for exterior door threshold weatherstripping, including material selection, installation, and maintenance.
The American Council for an Energy-Efficient Economy (ACEEE) discusses the role of weatherstripping materials in improving energy efficiency, including exterior door threshold seals.
Pemko Manufacturing, a leading provider of weatherstripping solutions, offers a range of exterior door threshold seal products, including automatic door bottoms and threshold seals.