Look closely at the surface of the stucco. If there are cracks, it's likely that you have cement stucco, not synthetic. If there is any wire mesh visible under the cracks, it is most likely cement.
Spray a little water on the surface of the stucco. Synthetic stucco is waterproof, and will not absorb the liquid. Cement stucco will absorb it, then dry.
Tap on the surface of the stucco gently. If it has a hollow sound, it is likely synthetic stucco. If the sound is solid, it's cement.
- If you still can't tell whether your stucco is real or synthetic, have a home inspector check it.
- If your home was built before 1980 and the exterior hasn't had a major renovation, your stucco is real; however, many newer homes also have real stucco, so a newer home doesn't automatically indicate synthetic stucco.