Window and Door Treatments

Insulation and Weatherization for Windows and Doors

It’s important to seal and insulate around the rough openings of windows and doors to prevent air leaks and moisture infiltration. Dow’s STYROFOAM™ insulation weatherization solutions enhance the long-term performance of your building’s window, doors and other decorative profiles.



GREAT STUFF spray insulation being applied during window installation.

Insulating Foam Sealants

A versatile solution for filling, sealing and insulat-ing gaps and penetrations around windows and doors.

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Flashing Tapes 

Flashing Tapes

Butyl rubber adhesives for a durable, water-re-sistant seal around door and window frames.

Browse our flashing and tapes
Potted plant behind a window with rain.

Sill Protection

A seamless, protective barrier against water infiltration at sill corners.

Browse our sill protection products