Posts Tagged ‘rigid foam insulation’
Although insulating the roof is not compulsory, it is extremely useful to do so. An insulated roof/ceiling/attic helps you save money on heating and cooling the house and there are separate types of home spray foam insulation available for homes in places with different climate.
The insulation, in cold places, exists in the attic or the ceiling of the house. This is also true for houses that are in warm places, but a reflective layer is also installed on the roof in these. While insulating a pitched roof that has high ceiling and open attic is relatively easy, insulation a roof that is flat or has vaulted ceilings is quite difficult.
Insulation is useful because when it is cold and the heating is on, the insulation material makes sure the heat isn’t lost because it is penetrating through the roof. On the other hand, in warm weather, having a reflective layer on the roof prevents radiant heat from heating the house further. Because of this the AC or the heating needn’t be kept on for long.
The R-value of an insulating material is a measure of how efficient it is. This is basically the thermal resistance of the material. Higher the thermal resistance better is the insulating capacity. Consult a professional about what material and thickness your insulation will need to be. Roof type will determine this.
You don’t need to hire a contractor to put up RFLs on your roof or for insulating a pitched roof because these are tasks you can manage by yourself. However, you will need the services of one if you have a pitched roof or vaulted ceilings. This is because you might risk a badly ventilated roof if you attempt to do this yourself, as attic spaces are limited in these roofs/ceilings. Your contractor will use a high-density material for insulation of these. Several materials are used for insulating roofs. Some are cellulose insulation, fiberglass and mineral wool insulation and synthetic foam insulation. Reflective insulation in warm climates is done with a layer of RFL sarking or foil batts.
Cellulose, fiberglass and mineral wool are traditional and inexpensive insulating materials. They are available in the form of rolls, as loose-fill products or spray-on materials. Polystyrene and polyurethane are examples of synthetic materials that have gained prominence in recent times due to their superior efficiency. Especially polyurethane, which is almost twice as efficient as compared to the rest of the materials, has an R-value of 6.7 to 7 for just one inch of the material.