Do I Need Faced Insulation Between Floors

The main reason why you do not need insulation on the floors is simple.

Do i need faced insulation between floors.

Unfaced insulation the type without paper is what you would use if you are adding insulation to your attic or to place between floors when living space is above and below. Any time you use a faced insulation the paper needs to be facing toward the living space. The batting material must be faced and at least as thick as the joists are wide so the batting is nearly flush with the top of the joists. So in an attic the paper faces downward and in a crawl space it faces upward.

Unless you have an extra 10 000 and a big hearted desire to create jobs in the insulation industry it makes no sense to insulate between floors. The biggest concern that can happen due to floor insulation is mould. The floor does not belong in the building envelope. Sometimes adding insulation to the floor can cause problems for your home.

Floor insulation can sometimes reduce the room temperature below the dew point. Floor insulation can hamper the dynamic of vapour barriers and thermal resistance. Install batting between the attic s floor joists.