You likely already know that ventilation is the flow of air through a system of intake and exhaust. But, how does ventilation relate to the attic and why is it important? As the experts in attic ventilation for Minnetonka, we’d like to discuss this essential part of your home’s cooling and heating systems.
Attic ventilation systems are unique to every home. Factors such as code requirements, regional climate and roof and ceiling designs all need to be considered when venting your roof. There are two main types of roof ventilation:
- Exhaust vents
- Intake vents
We can install the most efficient and effective attic ventilation systems. We understand how important it is to install proper attic insulation. It helps prevent temperate air loss from the living areas and diminishes the energy impact of having cold or hot air flow through the attic.
The type and number of vents needed will depend on your unique home. Our attic ventilation professionals will determine the exact amount needed for your home. As a general rule, you should establish a 1:300 ratio in which every 300 square feet of ceiling space calls for 1 square foot of attic ventilation. Accessory items like grates, piping and others that sit on your roof may also be an issue in calculating and setting up true ventilation.
In addition to preventing ice dams in winter, attic ventilation has many benefits when it’s hot outside as well. When the temperature outside rises, the temperature on your roof can be nearly doubled. A hot roof over a poorly vented attic translates into a very hot attic.
Heat infiltration to your home occurs through the attic. Even with adequate insulation, some heat will seep into your ceilings and down into the rooms when temperatures climb. Because of this, your air conditioner will run more often in order to cool the air off, driving up energy costs.
Consistent high moisture and temperatures in the attic due to lack of ventilation can cause damage to the roof including rippling, warping and more.
With spring arriving early this year, it is important to contact the experts here at Lewis Insulation as soon as possible to prepare for summer. Our experts can calculate how much ventilation your attic needs and how much is already there.