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.
What is Stucco Siding Made From? Stucco is a mixture of Portland cement, sand, and water. These three materials combine to create a very durable substance that dries into a hard, rock-like consistency thatâs smooth or rough, depending on how it is finished. Stucco is applied over a rough wire framework that helps the material adhere effectively.