Does adding more insulation in the attic help?
The Department of Energy estimates that a properly insulated attic can shave 10 to 50 percent off your heating bill.
And it works the opposite way for warm climates; in summer, it helps stabilize your house’s indoor temps to keep cooling needs in check..
How many inches of insulation should be in my attic?
The higher the R-Value, the better the thermal performance of the insulation. The recommended level for most attics is to insulate to R-38 or about 10 to 14 inches, depending on insulation type.
Can you put in too much insulation?
It is possible to over-insulate your house so much that it can’t breathe. The whole point of home insulation is to tightly seal your home’s interior. But if it becomes too tightly sealed with too many layers of insulation, moisture can get trapped inside those layers. That’s when mold starts to grow.
Can you have too much insulation in your loft?
As long as you ventilate your property properly, you can have as much insulation as you like within reason. The trick with loft insulation is to balance the amount of insulation you have with the amount of ventilation necessary to prevent damp. … Again, as long as the loft has adequate ventilation, this is fine.