Insulation works by stopping heat transfer from one substance to another. This keeps warm air from escaping through windows, walls , and ceilings generated by a heater, or keeps cool air generated by an air conditioner from being warmed by outside air entering the house.insulate a home is an excellent resource for this.
Ancient Egyptians were the first to use asbestos to isolate housing, and also used it for clothing and tableware. Ancient Greek and Roman houses had developed insulating cavity walls. Such walls are formed by the construction of two stone walls, leaving a gap of air in between. Air is a natural insulator so this trapped air kept inside the houses the heat generated by the fires. Strips of fabric were also used to trap moisture and avoid drafts in the Middle Ages, and again in America’s Great Depression.
In the 19th century, cavity walls were rediscovered, and used to build houses in Europe and America. To provide insulation, rock wool will be put within the cavities. Asbestos was still used in this way until the 1970s when asbestos was found to have the adverse health effects. Asbestos is no longer used in home isolation, since it can cause a rare cancer type.
Since in the earlier part of the 20th century the energy costs were small, houses were often constructed without adequate insulation. Houses were still constructed also in the 1950s, with single-layer solid masonry walls and single-pane glass windows. Such types of buildings, without insulation, allow heat to easily escape through the walls and windows.
Energy prices are much higher today, and all houses need to be built with good insulation to hold down the energy costs. Many homes use fibreglass or expanding embedded polystyrene foam as insulation in cavity walls. Fibreglass is so effective as it traps air in between the fibers of the glass and this air stops heat transfer.
Isolation is important with today’s emphasis on making homes as environmentally friendly as possible, because it contributes to energy efficiency. Materials such as paper cellulose, recycled cotton denim, and sheep wool are environmentally friendly choices used for filling cavity walls. Make sure a house is well sealed, with no leaks or construction issuesHealth Fitness Articles both saves the homeowner’s energy costs and lowers the demand for energy output.