Stucco Question To the Editor: The article "Stucco Patches," by Steve Thomas (6/93), was very good. I've done my share of it, but the idea of using masking tape for caulking was a new one to me. By the way, most stucco jobs in southern California more than about 20 years old were not done over sheathing of any kind. The frame was wrapped with wire and the building paper was laid over that. More recent work uses more sophisticated materials, and many new quality jobs are over plywood sheathing. Stucco in California is surprisingly resistant to seismic activity. In a strong earthquake, chimneys will fall but the stucco will frequently show no significant damage. What we do see commonly is