Viruses are classified by the type of nucleic acid they contain, and the shape of their protein capsule. Examples of several viruses are shown in Figures 1-3. Figure 1. Structure of a variety of viruses. Image from http://www.gene.com/AE/AB/GG/examples_of_viruses.html.
Stucco is a durable and beautiful building material, but homeowners should accept that it just isnât waterproof. If youâre concerned about damage to your home, look from these signs that your stucco is, indeed, due for a waterproofing job: Paint coating stucco is chipping, peeling, fainting, or cracking.
A 3-coat stucco system consists of a scratch coat, brown coat, and finish coat. The scratch coat is applied first to provide a strong base for the system. It's embedded in metal lath, which strengthens and secures the coat. The brown coat is applied next to create an even surface for the finish coat.