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.
The Basics. Traditional stucco siding is made from Portland cement, sand, lime, and water. This mixture is applied in three coats over a lath base, or a piece of mesh, and often coated with an expansive acrylic-polymer finish to deter cracking. Synthetic stucco siding, on the other hand, is multilayered.