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Air seal door and window rough openings with backer rod, caulk, or nonexpanding foam
Closed-cell backer rod is installed for air-sealing window and door rough openings.
Install an ENERGY STAR labeled insulated door with an automatic closer. Weather strip the door frame
Right – Backer-rod is a foam product available in various diameters that can be used to air-seal openings around doors and windows.
Right – The rough opening around the window has been filled with low-expansion foam to air seal.
Right – The rough opening around window has been filled with backer-rod to air seal.
Right – Weatherstripping has been installed and remains in contact when the door is closed.
Wrong – Fibrous insulation is not an air barrier and cannot be used to air-seal openings.
Wrong – There is visible light around the door because no weather stripping has been installed.