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.
Stucco is basically cement. When painted, it is very weather-resistant and does not have the rot-issues of wood; thatâs why it is used on so many buildings. Repairing a crack in stucco is often done with various caulks or cement, and usually the crack opens up again.There are two reasons: The cement patch canât stretch, and the caulk did not stick. These have underlying them one common denominator: the building is still moving.epairing a crack in stucco is often done with various caulks or cement, and usually the crack opens up again. There are two reasons: The cement patch canât stretch, and the caulk did not stick. These have underlying them one common denominator: the building is still moving.