A 3 to 4 inch layer of spf across the attic floor is a good start 1b.
Portion of house no insulation in attic.
Many homes are leaky and have insufficient insulation in the attic.
However most of the modern homes are designed to be energy efficient themselves and there is no point in installing the system then.
There was attic access and it was easy to get to.
If it is located in a conditioned part of the house also remember to insulate and air seal your attic access.
This is the best way to keep your house cool in the summers while keeping it warm during the winters.
The occupied area of the attic will beinsulated and kept warm while the space in back of the walls will not be insula ted.
This allows a lot of heat up to the attic.
Without insulation attic ducts will get hot in the summer when they need to carry cool air and cold in the winter when they need to transport heated air.
The attic should always be the first place you add insulation whether you live in florida or fargo.
In addition to upgrading the insulation that separates the upper floor of your house from an unconditioned attic space it makes sense to insulate any exposed ductwork in the attic.
Installing an insulation system can drastically reduce energy consumption in your house.
My home inspector did not check the attic above our master bedroom.
Upon our own inspection we determined that the master bedroom has no insulation in the attic space above our bedroom.
Gaps in the attic or between the lower floors and the attic will let heated or cooled air escape to the great unconditioned outdoors making any insulation you add essentially useless.
However in that space part of the attic floor willstill be expo sed.
Find a diagram of common air leaks here.
We have been in our house 3 months and found our bedroom to be 8 to 10 degrees colder than the rest of the house.
Before insulating seal any air leaks and make roof and other necessary repairs.
Insulate and air seal any knee walls vertical walls with attic space directly behind them in your home as well.