Improve air sealing and moisture protection between foundation walls and sill plates with this 1/4" x 5-1/2" x 50' foam sill sealer. Designed to create a protective barrier against air infiltration, moisture migration, and drafts, this lightweight foam roll helps improve energy efficiency and overall building performance. Ideal for residential framing applications, it installs quickly under sill plates to provide dependable sealing in both new construction and remodeling projects.