: If rebar is exposed, scrub it clean and apply a zinc-rich primer to prevent further corrosion. Phase II: Application
The longevity of the repair depends entirely on how well you prepare the surface. external concrete window sill repair
This guide covers damage from minor chips and cracks to spalling (surface flaking) caused by freeze-thaw cycles. : If rebar is exposed, scrub it clean
This guide covers everything you need to know about assessing the damage and restoring your sills to a "like-new" condition. : If rebar is exposed
External sills serve as a primary water-shedding mechanism. When they fail, moisture can enter the wall cavity, leading to mold, rot, or masonry damage. Common failure modes include: