Stucco

Stucco is a very common siding material in areas with a "Mediterranean" climate, i.e. a relatively dry climate. Stucco is most often installed on masonry or adobe structures. It is made out of sand, lime and cement. As with EIFS siding, stucco siding has a high failure rate in wet climates. I don't recommend the use of stucco siding in such climates.

Here are some notes about the use of stucco:

  • Stucco and similar products are not traditionally used in the wet Pacific Northwest, however, it is very common in dry climates like New Mexico - where it is the traditional siding product. Stucco can work in wet locations, but it must be installed with local conditions in mind.
  • Good installation, includes a good quality tar-impregnated felt, wire mesh, expansion joints, flashings, and good overhangs, gutters, and down spouts. All of this must be accompanied by good quality material and professional installation. In wet climates, a very good roof overhang is of special importance, it helps protect the stucco siding from the rain.
  • Older wood frame homes were often stuccoed over a wood lath. Such lath can deteriorate over time and allow for extensive cracking and separation from the wall structure.
  • Stucco related problems are often identified by extensive cracking, moss and mildew growth, paint blistering, and noticeable repair patches.