Temperature Controlled Roof Ventilators

Roof ventilators provide cost effective general purpose ventilation of commercial buildings as well as a large variety of industrial applications.

Temperature controlled roof ventilators.

They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling costs. They also provide limited attic temperature control when installed in conjunction with a thermostat. Belt and direct drive models are available with adjustable pitch cast aluminum. Power ventilators have the advantage of providing good ventilation even when there is no wind.

Set your store to see local. For the energy efficient control of roof or gable power attic ventilators. The activent is a temperature controlled register vent cover that reduces heating and cooling costs by zoning your home. Air vent s unit can effectively ventilate spaces up to 1 900 square feet and move air at 1320 cfm.

Humidity range from 30 to 90 percent. Ventilation helps maintain a healthy attic space both for your roof and for your family. Click images to enlarge. Improve comfort keeps room at set temperature eliminate overheated and overcooled rooms save electricity oil or gas works with most forced air heating cooling systems.

Temperature range from 50 to 120 degrees fahrenheit. It s electric powered and uses a thermostat and humidistat to control temperature and prevent moisture buildup. The air vent unit measures 15 inches in diameter and it s outfitted with six blades which measure 14 inches in diameter. The building codes and building science for natural roof ventilation however only appeared in the 1940s.

In a hot climate roof vents expel hot air from the roof or attic while relieving the load on the air conditioning system. Three years ago i wrote an article titled don t let your attic suck power attic ventilators are a bad idea nearly a hundred thousand page views and 93 comments later it s still generating lots of heat. For well insulated ceilings i e. Master flow 1250 cfm weathered wood galvanized steel electric powered attic fan with thermostat controlled model erv5ww view the master flow roof vents 93 00 93 00.

Insulation levels of r 19 or above it is doubtful that a power ventilation can be justified economically. Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh. Master flow 1250 cfm brown galvanized steel electric powered roof vent model pr2dbr 96 30 96 30. Roof ventilation in a cold climate vents moisture and ensures a cold roof temperature to avoid ice dams.

The egv5 power gable mount vent can move air at a rate of up to 1450 cu.