Stucco
Things You’ll Need:
•PVA Bonding Agents
•Portland Cement
•Bitumen (tar)
•Builders Sand
•Portland Cement
•Damp Rags
•Garden Hoses And Attachments
•Latex Paints
•Paint Rollers
•Rollers
•Soft-bristled Brush
•Fiberglass Cloth
•Primers
•Shallow Buckets
•Fiberglass Cloth
•Caulks
•Cold Chisels
•Mallets
•Rollers
Step 1
Note the direction of the crack. Vertical cracks from base to window or roof to door sometimes indicate a problem with the foundation. Before fixing the crack, call a foundation specialist to determine the condition of the foundation.
Step 2
Fix very small cracks by filling them with a high-quality caulk – preferably one that can be painted over. Use your fingers to press it in well and a damp cloth to clean up.
Step 3
Use a cold chisel or an old screwdriver to clean out wider cracks.
Step 4
Soak the area thoroughly with a hose so that the stucco won’t leach the water from the new mortar and cause it to crumble.
Step 5
Mix your mortar in a shallow bucket: one part portland cement, four parts builders’ sand and a little bit of water to make the mortar workable but not runny.
Step 6
Cover the area to be patched with a polyvinyl acetate (PVA) bonding agent made for masonry.
Step 7
When the bond is slightly sticky, fill the crack with the mortar mix.
Step 8
Cover the patched area with a piece of bitumen-coated fiberglass. (Bitumen is a tarlike substance.)
Step 9
Use a paint roller to press it into place, and apply a coat of bitumen over the patch.
Step 10
Let the bitumen dry and then apply another coat, stippling it with a soft-bristled brush to match the rest of the wall.
Step 11
Paint over the area with a primer made for stucco or bitumen patching. Allow the primer to dry.
Step 12
Repaint the area – but be aware that you may have to repaint the entire wall so that the patch won’t stand out.
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