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.
Things You Will Need
- Utility brush
- Silicone acrylic caulk syringe
- Damp sponge
- Once the caulk is dry, you can paint the sealed cracks to match the rest of the surrounding painted stucco.
- However, if your stucco is already unpainted, it's best to leave it that way because unpainted stucco generally needs substantially less maintenance than painted stucco.