Jim Peterson's blog

Stucco siding is a sand-based siding and is very porous. Stucco is installed in several ways, such as: over concrete block, over wood frame with a metal or plastic lathe, over Styrofoam on wood frame called EIFS, and the list goes on. Stucco like any other masonry surface develops typical cracks from various reasons such as shrinkage after it dries, poor installation mixture, or normal settlement.

This week's maintenance tip covers caulking and keeping your exterior siding properly maintained, especially in high moisture areas. The pictures below show what happens when wood siding is not properly sealed: