These can be ridge vents wind turbines or the flat vents your roofer wants to install.
How to replace attic turbine.
In the summer months the loft area of a house can heat up a lot making the rest of the house unpleasantly warm.
Installing a turbine roof vent provides one of the most effective ways possible of keeping an attic or loft cool.
The wind rotates the fan blade causing air movement in the attic as air is pulled out through the.
The 14 inch diameter unit could provide a complete air change in the attic every 14 minutes at 15 mph.
Picture above shows both roof vents a rotary turbine vent on the left and an aura gravity ventilator on the right with curb mount flanges a roof turbine can be made of galvanized steel that rusts as shown above.
A single 12 inch diameter turbine vent could provide a complete change of air in the attic space every 52 minutes if the outside breeze was just 5 mph.
Good attic ventilation is important for preventing ice dams in the winter.
A turbine has a series of vanes that spin as wind passes through them.
This will also make any air conditioning equipment work harder costing you more money to run it.
Turbine vents are those ubiquitous devices found on almost every residential rooftop.
Turbine fans have angled slits cut into a capped cylinder which create a continuous fan blade.
How to replace a roof turbine.
Ft of vent space half dedicated for air intake in the soffits and the other half for exhaust on the roof.
Unlike turbines this venting style does not have any moving parts.
Imagine what happens if you install two or three of these simplistic turbine vents on the back side of your roof out of view.
Attic must have 5 sq.
A ridge vent runs across the top of the roof s peak.
Roof turbines utilize the free power of the wind to boost attic air circulation.
Over time these vents can become squeaky from moisture and age related natural degradation.