Aluminum Sill with Thermal Break

Genuine Therma-Tru®sills and bottomsweeps help form a tight seal against wind-driven moisture infiltration at the bottom of the door system and help channel moisture away from the home. The sill pan (recommended) adds an extra layer of protection to help keep moisture away from the subfloor.

Aluminum Sill with Thermal Break

Product Options

Available Depths - 5-3/4, 7-3/4

Sill Finish Options

Additional Product Information
Related Products
Therma-Tru Outswing Sills

Aluminum Sill with Thermal Break

  • Continuous moisture-resistant treated Pine substrate provides a solid stepping surface and resists rot.
  • All-aluminum cap and nosing resists corrosion.

  • Integrated removable weatherstrip creates a bumper effect, strengthening its sealwith wind pressure.

  • Extra thick, 14-gauge aluminum approach provides excellent durability and a solid stepping surface.

NOTE: Also available without thermal break for warmer climates.

Adjustable for long-lasting performance.
Genuine Therma-Tru sills are engineered with features to help minimize the potential for leaks and drafts. Our adjustable sills allow flexibility to adjust the sill cap vertically to close gaps over time, helping to maintain a tight seal between the sill and bottom of the door.