Repairing Concrete: Window Sills Exterior

Apply a thin, even coat of your acrylic bonding agent with a brush. It should feel tacky, like rubber cement. Do not let it dry completely before applying the mortar. (If it dries, re-wet it with water.)

Guide to Repairing Exterior Concrete Window Sills Exterior concrete window sills are critical for shedding water away from your home's structure. Over time, exposure to the elements—especially —can lead to cracking, spalling, and crumbling. Repairing these sills early prevents water ingress that can cause internal dampness and structural rot. Common Signs of Damage repairing concrete window sills exterior

Before beginning, gather the following:

Profile the sill to shed water. The top should slope away from the window (minimum 15 degrees). Run your trowel over the surface to a smooth, but not polished, finish. Apply a thin, even coat of your acrylic