All Therma-Tru components are engineered to work together. A complete door system includes doors, glass, and components which work together to resist leaks and drafts, and help maintain energy efficiency and weather resistance.
- The sill and bottom sweep form a tight seal against wind-driven moisture infiltration at the bottom of the door system and help channel moisture away from the home. A sill pan (recommended) adds an extra layer of protection to help keep moisture away from the subfloor.
- Corner seal pads complete the seal between the sill cap, bottom sweep and weatherstrip to help block potential pathways where wind-driven moisture can infiltrate the bottom corner of the door system. These are only used with inswing units.
- The hinges position the door to properly compress the weatherstrip and help form a tight, even seal against air and moisture infiltration when the door closes.
- The weatherstrip is specifically engineered in a variety of profiles to provide the best possible fit with Therma-Tru door systems, helping to deliver a precise seal between the door and frame.
- A multi-point locking system engages the door and frame at three points from top to bottom, helping to preserve the weatherstrip’s seal even under wind pressure. A multi-point locking system is highly recommended for security and protection.
- A lip-lite frame (shown right) features a compression seal against weather on the outside of the door and an adhesive seal against weather on the outside of the glass. Flush-glazed glass (shown left) is built directly into the door without a Lip-lite frame, featuring a high-performance adhesive weather seal inside and out.