Attics - Vented vs. Unvented | Icynene

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Attics - Vented vs. Unvented

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Attics - Vented vs. Unvented

Deciding to upgrade your attic insulation to include spray foam insulation like Icynene is a step toward energy efficiency and a more comfortable home. But with vented and unvented attics both being options that are available, how do you know which one is right for your home?

Homes that are built on a basement and where the HVAC unit resides in a conditioned area of the basement are ideally suited to the vented attic setup. With ducts running up through the walls to various floors, and nothing kept in the attic, there is little need for that area of the house to be kept cool.

On the other hand, homes that have their heating and cooling system stored in the attic do require the room be kept cool for optimal performance, so an unvented attic is ideal. Without insulation in the dividing attic floor/ceiling,  air from outside can enter the attic space and lead to the equipment working overtime and driving your monthly heating or cooling costs higher. This is particularly important to consider in southern or warmer climates where the heat can make your cooling bills skyrocket.

Other scenarios where an unvented attic are the best choice are when it is being converted into another room, or if there is a scissor truss system in the attic floor, which would make it very hard to add insulation to the attic floor/house ceiling. Spray foam insulation, like Icyene, can used to help create an unvented attic, when applied to the roof sheathing and attic walls.

To find out which option is right for you, and for more information, contact your local Icynene spray foam insulation contractor.

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