Power vents are heat-activated with a thermostat, and usually do not function to transfer air in the coldest winter months, allowing for accumulation of moisture. The thermostats are very temperamental in the power vents, and usually split during the first two years. They involve the installation of an electrician, and they run off your electricity, which makes them a constant expense. If you’re looking for more tips, Nortech Services has it for you. At the other hand, solar powered vents are by far superior devices, and when properly mounted they do not exhibit any of the negative characteristics of the conventional power vents.
Good ventilation. Needless to say.
Too much ventilation in the attic will suck the air conditioning from the living area and become counter-productive. The ratio approved by the UBC, FHA, and SBCCI (major building code agencies) is 1/300, but for colder year-round climates 1/150 is preferred. This is, one square foot of ventilation for each 150 square feet of floor space in the attic. This number is then equally split between the intake and the exhaust. A 2000 square foot attic by this method requires 13 square feet of ventilation (2000/150). There is a need to split this amount by two, 6.5 square feet for intake and 6.5 for exhaust.
The most important thing to note is that the roof vents are useless, without air intake. If you have no soffit ventilation, please call an estimate from a reliable local contractor. When you have soffit vents, make sure they are dirt-free and insulating. When you have unique situations such as cathedral ceilings or open cornices you should seek a more innovative approach from a professional roofing contractor. Further detailed questions on ventilation can also be answered in the homeowner’s forum at http:/www.hailandwind.com/
Credentials of Authors: After only four short years of service in the U.S., Greg Cannon received his Navy Achievement Medal and White House commendations, and two Fleet admirals. Boat. With a degree in real estate finance, he attended Angelo State University and holds nine building trade certifications including Solar Photovoltaic and Certified Building Analyst. Mr. Cannon has previously served as an independent insurance adjuster and retains the current license of his insurance adjuster to best represent his clients as a contractor for storm damage repair.