Dow Sill Seal 5-1/2-in x 50-ft - Styrofoam Unfaced Polystyrene Roll Insulation;

Dow Sill Seal - Commercial and residential applications such as between concrete foundation and sill plate, around windows and doors, and between floors - Provides exceptional resistance to water and water vapor - Closed-cell foam compresses to seal gaps in irregular surfaces - Reduces air infiltration