Best Way To Insulate Attic Without Soffit Vents

The solution is to add baffles which allow air to flow past the insulation photo 9.

Best way to insulate attic without soffit vents.

Plan to pull up the flooring and layer new insulation on top of the old. These could be wall vents in the second floor attic in theory although this wouldn t be as good as soffit vents. The most common way to add ventilation to an attic is by installing air intakes in the soffits and putting an outlet at the gable of the house. The best type of ventilation a continuous ridge vent that goes down the peak of the roof matched with soffit vents at the overhang.

But if the floor is covered in plywood you can t stuff enough insulation beneath it to do the job sufficiently not even in warm climates. But this is just one component of a venting system. Baffles are available at home centers. So this way we take air in down low we run it up under the roof sheathing and.

The answer is rafter venting. And the best way to ventilate an attic is actually no longer do we consider gable vents to be the best type of ventilation. Weird attic layouts may be a part of it. Two simple alternatives to soffit vents can be installed with little more than a circular saw and a hammer.

Because the simplest and cheapest way to insulate an attic is to add material to the floor. Sometimes a home without eaves or soffits will use ridge vents. If i had an older home without soffits i would strongly consider just completely air sealing the attic and adding foam insulation totally removing the need for ventilation. Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof.

In an attic without soffit vents you can add insulation in the corners and the wedges between the slope of the roof and the floor of the attic which serves as the ceiling for the room below. Drip edge vents hang out several inches past the edges of the roof allowing you to trim. That means air can t flow from the soffit vents to the roof vents. You would also need baffles in the sloped ceiling section to allow air to pass between the top of the insulation and the underside of the roof sheathing.