When it comes to selecting the ideal type of insulation for your attic installation, it is essential to take into account the R-value of the insulation. The R-value is a measure of the insulation's capacity to resist heat flow, and the higher the R-value, the greater the insulating power. Depending on where you live, you may need to focus on attic insulation with a higher or lower R-value. In warm climates, you should look for attic insulation with a higher R-value to help keep your home cool in summer.
The suggested R-value for these climates is usually R-38, with insulation between 13 and 14 inches deep. In cold climates, you should concentrate on attic insulation with a lower R-value to help keep your home warm in winter. The recommended R-value for these climates is usually R-49, with insulation 16 to 18 inches deep. When installing insulation in your attic, it is important that it is evenly distributed without low spots.
If you are using fiberglass or mineral wool insulation, it is best to install it on the surface of the blocks either outside or inside the foundation walls. Additionally, if you are using blanket-type insulation, it is important to note that this type of insulation does not come in pre-cut dimensions and can easily fill wall cavities and oddly shaped areas. If you have drafty rooms, hot or cold ceilings, and high energy bills, your attic probably needs new or better insulation. A study conducted by Oak Ridge Laboratories in 1991 found that fiberglass insulation for loosely filled attics lost much of its insulating value when temperatures dropped below 20 degrees.
Therefore, it is essential to consider all of these factors when choosing the right type of insulation for your attic installation.
