Knee Wall Doors

Publication Type:
Fact Sheet

Published / Updated:

A knee wall is any wall inside a living space that backs up to an attic. Without proper sealing, hot air from the attic can leak into the living space in summer months, and cold air can seep into the living space in winter months. By sealing the access door with weather stripping and attaching rigid insulation to the attic side of the door, you can help seal air leaks in the knee wall door. Download this fact sheet for more information on properly sealing knee wall doors and improving your home's energy efficiency.

  • knee walls
  • rigid insulation
  • weather stripping
  • adding a threshold

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