Wood Crafters Products
April 25, 2020
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How to Winterize Attic Ventilation

Author: Administrator
Many people think the attic ventilation in a home is all about keeping the attic cool in the summer months. This is not the case. The ventilation in the attic is about moisture and preventing that moisture from collecting in the insulation and in the roofing materials. Bad attic ventilation can wreak havoc on the condition of the home and leave the roof and rafter damaged and the insulation filled with mold. Winter ventilation is more important, in most cases, than summer ventilation because when moisture collects and freezes, it takes up more space and that can lead to cracking wood and deterioration of the attic in a short period of time.

When thinking about attic ventilation in the winter, it is important to remember that more is better. There are careful tips to follow in order to optimize the attic ventilation for better structural integrity for the life of the home.

* Air Space - There should always be 1 1/2 inches of air space between the roofing and the warm walls of the attic. The warm walls are the walls that are seen when a person enters the attic. This spacing allows for air to move around and stop the ice and moisture from collecting.

* Soffit Vents - Soffit Vents are the vents located on the underside of the guttering. These vents should be kept clean at all times. This is where the air that moves in the 1 1/2 inch space will originate.

* Gable Vent or Ridge Vent - Some homes have attic ventilation with Gable Vents and others with Ridge Vents. The Gable Vent looks like a shutter and the Ridge Vent looks like a cone on the top of the house. These need to be kept clean and free from clutter so air can move out of the 1 1/2 inch space.

* Knee Wall Insulation - The knee walls should be insulated as well. This insulation should be extended to the floor of the attic if the space is not used for storage or some other activity.

* Insulating the Attic - The attic insulation is key to the attic ventilation process working perfectly. The insulation needs to be placed on the warm side of the wall. Proper insulation for proper attic ventilation will include a vapor barrier.

Keeping your attic properly ventilated in both the summer and the winter months is not an option. Just because there is a fan in place in the attic, does not mean the attic ventilation is working properly. The ventilation is about more than the air moving inside the attic, it is about keeping the air moving under the roofing and throughout the top of the home. If any of the vents are not freely open to air movement, the moisture will collect and that can mean thousands of dollars worth of damage that could have been prevented with a few simple changes to the way the attic ventilation occurs. If there are no vents in place in the attic, a contractor will need to be called to place these vents in the appropriate spots.


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