Looking out over the span of your attic, regardless of what kind of insulation you currently have, is an easy way to decide whether you need more. You can add more insulation if your insulation is only equal with or under your floor joists (i.e., you can see your joists). If you can’t see any of the floor joists because the insulation is so high up, you probably have enough insulation and adding more won’t save you money. It’s important that the insulation is uniformly dispersed in the attic, with no low spots; often there’s plenty in the middle and very little around the eaves. If your attic insulation fully covers your joists and is uniformly spread in your attic, you’ve probably got plenty.Do you want to learn more? Visit https://fdinsulation.com/how-often-should-you-replace-the-attics-insulation
R-Value is used to assign insulation grades. The R-Value of insulation is a calculation of its ability to withstand heat flow. The higher the R-Value, the better the insulation’s thermal efficiency. Most attics should be isolated to R-38, or around 10 to 14 inches, depending on the insulation type. You don’t have to use the same sort of supplementary content that’s already in your attic when installing it. Loose fill may be added on top of fibreglass batts or blankets, and vice versa. If you’re going to use fibreglass over loose fill, make sure it’s “unfaced,” meaning it doesn’t have any paper or foil backing. If you decide to instal loose fill insulation, you should consider hiring a specialist because the application necessitates the use of a blowing machine. However, you can do it on your own because some home improvement stores rent out this unit.