There are many different attic insulation types, and people want to know what is best for their homes. This whole business of what is best is relative and deepens on factors like access to attics, the area of insulation, local climate, the recommended r-value of insulation for the local Zip Code, the amount of insulation material needed and other special requirements of the homeowner.
Comparison Based On R-Values
Before setting out to find the insulation most suited for your needs remember that comparison of the attic insulation types should be based on important factors like R-value. Different insulation products are rated with numbers that indicate how well they resist the flow of heat called thermal resistance. Products with greater R-values have the greater insulating capacity. These values again vary depending on the material used, the density of the material, its thickness and so on. If you need to know that the r-value of multiple layers of an insulating material just adding the R-values of individual layers will give the final number.
Energy Conservation Through Insulation
Attics, walls, doors, and windows are one the biggest sources of energy loss in any home. It does not matter what attic insulation type you use because plugging these energy leakages can be a great source of savings in energy bills for the homeowners. Most modern constructions come with optimum insulation with rigid foam insulation being installed during construction itself eliminating the need for installing new insulation. Most older homes though need to be retro-fitted with insulation to make them energy efficient. Also, not all new homes come with attic insulation which will need to be installed by the homeowner.
Attic Insulation Types: How To Insulate?
This is easily done using the help of a professional, or the homeowner can themselves devote some time and energy to doing this project on their weekends. It pays to know as much you can about insulation. Piling on heavier insulation over lighter materials reduces the insulation capacity. Compressing the insulation is a big no-no as this also reduces the r-value of the material. The effectiveness of the insulation depends to a large extent on the how it is installed and not on the best of the attic insulation types.
First timers may mistakenly think that insulating between joists and studs is quite enough. No, the joists and studs should be completely submerged in insulation materials to prevent loss of heat energy. Those exposed parts of the roofing structure act as thermal bridges conducting the heat away rendering the insulation ineffective. Blow in the loose-fill insulation so that it completely covers the joists. A visual inspection should reveal any of these structures to our eye. Blow-in more if need be to cover them completely. By blowing into a depth of 10-14 inches, you get R-value of about 38 which is the recommended for attics. Different attic insulation types have different R-values/per inch of material. So, some may require less thickness to achieve the same r-value.
This article was contributed by Fresh Insulation Birmingham AL, our go to company for all things insulation. Please feel free to call Fresh Insulation, they are a great resource.