Cloth can be a great choice for green and chemical-free insulation in the home. Using cloth as an insulator keeps fabric scraps out of the landfill and minimizes exposure to harmful chemicals common in modern insulation.Know More
Conventional fiberglass insulation has been shown to contain formaldehyde, a chemical commonly associated with increased cancer risk. Cotton insulation will not cause skin irritation or respiratory problems for those coming in contact with the material. Like fiberglass insulation, cotton insulation may be rolled into batts for easy installation.
When insulating a pre-existing structure against drafts from old windows and doors, cloth is a cheap and effective insulator. An old blanket can easily be turned into a curtain or tacked over a drafty window to minimize airflow from outside. Thicker fabrics will be more effective, while thinner fabrics will allow more natural light into the home.Learn more about Thermodynamics
Styrofoam works well as an insulator because it mostly consists of air confined to small pockets. These pockets hinder the convection process from carrying heat energy away from (or to) the substance inside the container.Full Answer >
An example of a bad insulator is glass. An insulator is a material that does not allow much heat or electricity to pass through easily.Full Answer >
Metals conduct heat well for two reasons: metal ions pack very closely together in their molecular lattice, and electrons drifting through the metal carry kinetic energy around the lattice. The result is a quick elevation in particle motion that is expressed through heat energy. This conductivity is one reason why one rarely sees metal playground equipment anymore — although the slides go a lot faster than plastic ones, sitting on a slide on a hot summer afternoon is often quite painful.Full Answer >
Metals are good conductors of electricity because their atoms contain at least one free electron. They are also considered excellent heat conductors, because the metal ions in the lattice are closely packed together, and the delocalized electrons can bring kinetic energy through the lattice.Full Answer >