While many homeowners understand how attic insulation works, not many understand how attic ventilation works. Clearly, a properly “sealed” attic is required for the attic insulation to perform. But in addition, appropriate air flow is also required throughout the attic and roof cavity.
Attic ventilation comprises part of a “system” that compliments the performance of installed attic insulation. In fact, air circulation is necessary throughout winter and summer, even though the weather dynamics are completely opposite. Without good ventilation, insulation will suffer.
In a typical residential home, the natural tendency is for warm air to rise. As it rises, it all collects in the attic and roof cavity. As such, various existing attic vents allow the accumulated warm air to ventilate out. To ensure peak performance, however, several attic vents are required.
Proper ventilation in the attic allows all of the trapped air to escape. This is accomplished by installing various air vents throughout the attic and roof to allow maximum air circulation. Ideally, an attic ventilation in Oakville company will recommend the required type and number of vents.
Good ventilation is critical for another reason – air moisture is controlled. When moisture builds up in the attic (winter and summer), excessive amounts can cause various problems. With a proper ventilation "system," undesirable accumulation of air moisture is adequately prevented.
When ventilation is inadequate throughout the attic, several problems could ensue. For one, excessive air moisture compromises the effectiveness of attic insulation. Also, the HVAC system (your heating and cooling equipment) has to work harder in summer and winter to provide indoor comfort. Finally, excessive moisture in the attic is a sure recipe for mold to grow.
In wintertime, inadequate ventilation will cause ice to collect along the roof’s edge. This is known as “ice damming" and is caused by the repeated melting and freezing of roof ice. This situation often damages roof shingles and even the roof structure. Finally, with excessive moisture in the attic and roof cavity, rust and corrosion will slowly develop season after season.
If you experience any of the following problems, there is a good chance your attic ventilation needs a professional upgrade.
When installing ventilation in the attic, a DIY approach might save some money. However, nothing can compare with the results of a professional installation. At EcoComfort Insulation & Contracting, Oakville customers are assured of 100% satisfaction on every job.
At EcoComfort, we do it all from start to finish. In addition to ventilation, we also remove old insulation and install new insulation. In most cases, we recommend blown-in cellulose for the attic – it provides satisfactory R-Value and thermal coverage throughout the attic.
In most residential attics, blown-in cellulose is a very cost-effective installation. In fact, when the existing insulation materials are clean, dry, and in good condition, blown-in cellulose is perfect for effectively "topping up" the entire attic. The results are evident in winter and summer.
For attic ventilation in Oakville, local homeowners can count on EcoComfort for comprehensive services. Once we inspect the attic, we’ll recommend the appropriate air ventilation components to suit the need.
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