Question: Can You Put New Attic Insulation Over Old?

Will adding more insulation attic make difference?

Upgrading your attic insulation is definitely worth the time and effort if you find your existing insulation is well below an R-Value of 30.

If you have adequate insulation, adding more might not produce a noticeable difference in your energy usage.

However, the insulation in most attics is considerably less than R-30..

Is it better to insulate attic ceiling or floor?

1 Answer. Since the ceiling in the attic is too low to make it into a living space, you should only insulate the floor. Insulating the ceiling will create a new heating zone, and essentially you will be paying more to heat your attic.

How long does it take to remove attic insulation?

8 to 10 hoursWith the proper equipment, professional attic insulation removal can take 8 to 10 hours.

How much does it cost to insulate a 1500 sq ft attic?

Attic Insulation CostsItemUnit CostInsulation: install Kraft faced R-19, 23″ wide x 6.25″ thick x 1,500 sq.ft.; prepare and clean up; including waste and miscellaneous material.$0.64per sq.ft.+ Labor Cost$32per hourTotal Cost$1.00per sq.ft.

How do I know if my attic needs more insulation?

A quick way to see if you need more insulation is to look across your attic floor. If your insulation level is at or below the top of the floor joists, you probably need to add more insulation (but remember to seal the air leaks before you insulate).

How many inches of insulation should be in my attic?

The recommended level for most attics is to insulate to R-38 or about 10 to 14 inches, depending on insulation type.

Should I remove old loft insulation before laying new?

So the conclusion is, don’t remove loft insulation unless there is a real need to do so – adding insulation on the top will do the job perfectly. Removing the insulation is potentially hazardous and we advise professional removal if there is a need to do so.

Can you put too much insulation in attic?

There’s really no such thing as “too much insulation.” It is more likely that your attic is not ventilating properly, resulting in warmer air on the 2nd floor and an overheated attic. … Lots of attic insulation will keep the 2nd floor temperature from changing quickly.

Is rolled insulation better than blown?

Rolled fiberglass insulation scores an R-value of 3.7. So overall, rolled fiberglass insulation is slightly more effective at blocking in and out heat than its blown counterpart.

How much does it cost to insulate a 1200 sq ft attic?

How much does attic insulation cost? The pros charge $1,500 to $2,000 to do a 1,200-sq. -ft.