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.
Hard Coat Stucco. Hard coat stucco is the type most used for the exterior of homes. It is cheaper than the type known as EIFS (Exterior Insulation and Finish System), yet it is just as durable. There are two kinds of hard coat stucco to choose from: one coat stucco and three coat stucco. For the one coat type, you apply one coat of the base cement and the finish coat, whereas with three coat stucco, you apply two coats of base cement and a finish coat.