Roof Ventilation: Roof Turbines and Ridge Vents

roof turbine on metal roof

Ensuring your attic is properly ventilated limits the amount of moisture present, prolongs the life of your roof, and lowers heating & cooling costs.

One of the best ways to prevent excessive moisture is with roof turbines and ridge vents.


Roof Turbines

roof turbine diagram

What are roof turbines?

A roof turbine is a relatively small vent that utilizes the wind to remove humid air from an attic.

As the wind passes through the turbine vent, a series of vanes within the turbine spin, cycling humid air out of the attic.

Roof turbines are typically 12 or 14 inches square, so they take up minimal space on your roof.

Why should homeowners consider roof turbines?

By decreasing the amount of humidity, roof turbines limit the amount of mold, mildew, and rot that would otherwise occur over time.

Because they eliminate hot air from the attic, roof turbines also reduce the costs associated with cooling your home. 

How much do roof turbines cost?

Roof turbines vary in price but typically cost $70 - $200.

Pricing will vary depending on the specific turbine you choose and how much the contractor charges to install it.

How are roof turbines installed?

Roof turbines can be installed by the homeowner if you have some basic tools and know-how.

How to install roof turbines:

  • Remove the shingles around the turbine’s desired location.
  • Drill a ventilation hole.
  • Screw the turbine down.
  • Add sealant and flashing around the seams to prevent leaks.

If you’re at all unsure about your capabilities, hire a professional roofing contractor.


Find a qualified roofing contractor


Ridge Vents

ridge vents are a subtle form of roof ventilation

What are ridge vents?

Ridge vents are installed at the peak of a sloped roof, allowing warm, damp air to escape from an attic.

Unlike turbines, this ventilation system has no moving parts.

Why should homeowners consider ridge vents?

Air circulation prolongs the life of roofing materials while keeping utility bills down and improving the internal conditions of the home.

Ridge vents are a passive system and offer less air movement, so they work best in moderate climates on shingled roofs.

Ridge vents work all year and are designed to blend in with your roof, unlike roof turbines.

How much do ridge vents cost?

When professionally installed, ridge vent systems (which often utilize soffit vents too) cost around $600 - $650.

Due to the labor and materials, ridge vents are more expensive than roof turbines, but they’re non-mechanical so there’s no need to worry about electrical issues.

man fixing ridge vents

How are ridge vents installed?

For this ventilation system to be installed, the entire peak needs to be removed and replaced with ridge vents.

The most effective ridge vent systems also utilize soffit venting to ensure proper air circulation.


Learn more about roof ventilation: What Homeowners Need to Know About Roof Ventilation