Roof Exhaust Fan Blade Types

Spun aluminum roof and wall exhausters for grease laden air.

Roof exhaust fan blade types.

Hooded and tiered centrifugal exhaust fans. Tube axial fan blades circulate air through low pressure and low air flow ducts. Low profile roof exhausters. Plastic fan blades are lightweight and corrosion resistant for use in harsh environments.

Making it easy to snap a fan blade. Ridge vents it s not a good idea to use a power vent fan if your house has a ridge vent since the fan will tend to draw in air from the ridge. Air vent 1 500 cfm high efficiency he roof mount power attic fan click to add item air vent 1 500 cfm high efficiency he roof mount power attic fan to the compare list compare click to add item air vent 1 500 cfm high efficiency he roof mount power attic fan to the compare list. It is designed for attic spaces up to 2200 sq.

The erv5 model power roof mount vent can move air at a rate of up to 1250 cu. It can quickly remove a larger volume of hot and or humid air from your attic when compared to static ventilation. Condenser fan blades are used to replace worn or damaged blades in hvac condensers. Condenser propeller hubs connect the fan blade to the motor drive shaft.

One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home. Direct drive upblast exhaust fans are designed so the motor is attached directly to the fan blade. The upblast rooftop fan ejects the air from the building straight up into the atmosphere while a downblast roof fan ejects the air downward to the roof by using a bell shaped cap on the top of the fan. Cfm s for these.

Whereas the downblast roof exhaust fan does not need the damper due to the bell like housing which keeps all weather out of the building. Aluminum fan blades are lightweight and suitable for use in extreme temperatures. Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic. Plus roofing and attic ventilation systems can protect homes from the expensive roof and structural damage caused by trapped heat ice dams moisture and mold.

This system is widely considered to be more efficient and has less moving parts reducing the likelihood of needing repairs. Belt drive upblast exhaust fans use a belt and motor pulley to control the motor shaft. The upblast roof mount fan uses a butterfly type damper and rain gutter design so that when the fan is off no rain can enter the building. A home s ventilation system consists of everything from roof vents to the best attic fans without the right roofing and attic ventilation system your home can become uncomfortable and cost more to cool or heat.

Tamper proof centrifugal roof exhauster. Humidity sensors are also available that cut the fan on if moisture in the attic becomes too high. Types of attic fans. This in turn can help save money on your heating and cooling costs.