How to Seal the Parapets on a Stucco Roof

Brush off any crumbling stucco around the cracks in the parapet with a utility brush. Insert the tip of the syringe of a tube of silicone acrylic caulk into the crack.

Push down the plunger of the tube of silicone acrylic caulk while dragging the tube downwards to distribute the caulk evenly throughout the length of the crack.

Push the caulk deep into the caulk by using a trowel. Wipe off the excess caulk with a damp sponge. Allow the caulk to dry for at least 24 hours.