Are All Attics Vented

Unfortunately it s highly unlikely that the statements you hear will be true.

Are all attics vented.

In hot humid climates condensation on ductwork and air handlers located in vented attics is common. In all climates this leads to thermal penalties increased energy consumption in the order of 20 percent of the total space conditioning load rudd and lstiburek 1997. The most energy efficient attics are insulated and ventilated. 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.

Most homeowners and builders believe that attics should be vented. Ductwork interior to thermal and pressure boundary. We are on a mission to give homeowners all of the information they need to make the best decision for their home s insulation needs. If you walk down to your local lumberyard and lean on the counter the employees and nearby customers will offer a variety of opinions about why attics need to be vented.

As part of that mission below i will discuss the vented attic system and the unvented attic system as well as the pros and. On older houses attics may be ventilated only with louvered vents at the tops of gable ends walls although it s usually more effective to use these in conjunction with soffit vents.