Ridge Vent
Definition: A ridge vent is a type of passive ventilation system installed along the peak (ridge) of a sloped roof. It allows warm, humid air to escape from the attic, promoting better airflow and reducing the buildup of heat and moisture inside the roof structure. Peak vents are essential in maintaining a balanced ventilation system, which helps prolong the lifespan of roofing materials and improve the overall energy efficiency of a building.
Ridge vent functions:
- Attic Ventilation: Ridge vents provide an outlet for the hot, humid air that naturally rises in the attic space. As the warmer air escapes through the ridge vent, cooler air is drawn in through soffit or eave vents, creating a continuous flow of air. This airflow helps prevent the buildup of heat and moisture, which can damage the roof structure, promote mold growth, and reduce energy efficiency.
- Temperature Regulation: By allowing warm air to escape, ridge vents help lower the temperature in the attic, reducing the strain on air conditioning systems during hot weather. This can lead to significant energy savings, as a cooler attic reduces the amount of heat that radiates into the living space below.
- Moisture Control: Ridge vents also play a vital role in controlling attic moisture levels. Without proper ventilation, moisture from the home can become trapped in the attic, leading to condensation, mold growth, wood rot, and even structural damage over time.
Types of Ridge Vent:
- Shingle-Over Ridge Vents: These vents are designed to blend seamlessly into the roof by being covered with asphalt shingles. They provide an aesthetically pleasing look while maintaining effective ventilation.
- Aluminum or Plastic Ridge Vents: These are made from durable materials like aluminum or plastic and are installed along the roof’s ridge without covering them with shingles. They are more visible but highly efficient and durable.
The 1:300 Rule:
The 1:300 rule is a standard guideline used in attic ventilation. It states that for every 300 square feet of attic floor space, there should be 1 square foot of ventilation. This ventilation should be balanced between intake (usually through soffit vents) and exhaust (such as ridge vents).
- Balanced Ventilation: Half of the required ventilation should come from intake vents (located at the eaves or soffits), and the other half from exhaust vents (like ridge vents). For example, a 1200-square-foot attic would require 4 square feet of total ventilation (1200 ÷ 300 = 4), with 2 square feet from intake vents and 2 square feet from exhaust vents.
- Ensuring Proper Airflow: The 1:300 rule ensures that there is enough airflow through the attic to remove heat and moisture effectively. Without balanced ventilation, moisture can build up, leading to problems such as mold, mildew, and wood rot.
See our works
Giving you a sense of what a metal roof will look like in your home of commercial property