Insulation may very well be the most effective way to provide resistance to the flow of heat. The better quality insulation, the more heat flow resistance your insulation provides. It also has lowered the cost of heating or cooling in our homes and other commercial places, not only heating, and cooling costs are reduced, but through insulating, comfort is also made guaranteed.
Usually, the insulation materials work by slowing the rate of conductive heat flow and to quite a lesser extent – convective heat flow. Barriers that are radiant and reflective insulation systems work by lessening the radiant heat gain. The reflective surface should face an open air space.
Regardless of the method, heat always flows from a hotter region to a relatively lower temperature region. Thus, in winters, heat flows directly from all the heated spaces of living such as bedrooms, living rooms, lounges and kitchen to garages, basements, and attics. Thus, so much useful heat is lost that could have been used to keep the house warmer. And now to warm the house, other means of heating must be used such as burners, or heaters that will cost up fuel and money. For comfort, heat lost must be maintained by heating systems and the heat gained in summers must be taken out using cooling systems that will use up money! This issue can be resolved quite easily using insulation. Thus, it will prevent heat flow by providing the effective hindrance to the flow of heat.
The type and form of your insulation will mainly depend upon your climate. Whether you are adding new insulation to your old home or building a new one, you will need to determine the particular R-value for your needs.
Spray polyurethane foam can be better than any other insulation when it comes to reducing air leakage. With foamed insulation, it is quite easy and effective and also the best part, economic. Through foamed spray insulation, small creeks and holes and corners can be covered up using a high R-value foam. Most spray foams include two components, conventionally canned A and B. Usually houses that are heated convey the components to a gun that mixes the two of them. As soon as the two of them come in contact with each other, a chemical reaction begins. The mixture swells up or expands, and forms a foam like material and then eventually hardens.
Spray foam insulation has some advantages over conventional insulation, but it is not foolproof. Many of the builders that have used foam spray have reported that the insulation gets sloppy. Some installer sprays the foam when the reaction isn’t even complete yet, and thus the foam produce isn’t of good quality and is poorly mixed. Thus, the cracks and the creeks that were covered don’t get properly insulate still leaving behind open spaces.
Another disadvantage of using the foam spray insulation is that it has quite a pungent smell. It has been reported to cause irritation in the eyes and also breathing people have reported problems due to this spray foam. Article written by Tom Johnston.