Identify and Prepare Large Gaps

What happens here

Begin by visually inspecting the exterior surface for any large gaps or cracks, particularly where different building materials meet or where structural movement may have caused separation. For instance, the video highlights gaps along the siding of the house. The presenter emphasizes the importance of having backer rod readily available. This flexible foam material is a critical component for effectively filling these large voids, providing a necessary base for the subsequent sealant application. Proper gap preparation ensures the sealant cures effectively without excessive shrinkage, laying the groundwork for a stable and uniform surface before primer and paint application.

Goal: The initial step involves identifying significant gaps or cracks in the exterior surface of the structure that require filling, and ensuring backer rod is available for these repairs.