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.
Use a masonry paint on stucco. Stucco is a combination of powdered limestone or cement, blended with sand and water until it reaches a mortar-like consistency. Applied by hand over metal wire or lath, stucco cures to a hard and durable masonry surface, which can last for years on a homeâs exterior.. Apply a coat of exterior masonry primer to the stucco. Start by brushing the primer around the edges first and then roll on the primer with a thick-nap roller on the flat wall expanses.