During warm weather, humidity can build up in the home, causing peeling paint, leaks, and rotting wood. To prevent this, a house should be properly ventilated. It is especially important to ventilate a new home, which is often constructed to be airtight and is heavily insulated to reduce energy consumption. Here are ways to allow fresh air in and out of a home to prevent humidity buildup and reduce air conditioning bills.
Step 1: Ridge vents are installed from one end of the roof to another, cooling the roof deck uniformly. Their low profile makes them barely noticeable at street level. These vents are considered the most effective power-free home ventilators. Wind blows over the exterior baffle on the vent, creating negative low air pressure. This removes humidity and heat by drawing air from the attic. Filter and shingle-over metal vents are the two types. Some styles have filters to protect the roof from bugs, dust, rain, and snow.
Step 2: Wind turbines use natural wind forces to create air flow, providing the home with ventilation. The turbine spins freely, drawing the hot, humid air from your attic. Twelve and 14-inch turbines are available and the larger size delivers nearly 30 percent more air flow.
Step 3: Power vents force humidity and heat from your attic, even on a day that is not windy. Intake vents located under eaves allow air to enter. Electric fans pull the air through the attic and emit it from the house. Some vents feature an adjustable thermostat with two speeds. These are suitable for geographic areas that experience extremely high temperatures. If moisture commonly accumulates in the attic, a ventilator that features an automatic humidistat will address the issue. This is mounted on either the roof or the gables.
Step 4: Foundation vents prevent moisture from entering the house through crawlspaces. They emit moist, musty air, preventing mold, mildew, and rot.
Step 5: A whole-house fan lowers the indoor air temperature more rapidly than an air conditioning unit. The fan draws cooler outdoor air from open windows and circulates it through the home. Direct-drive and belt-drive are the two main types. Direct-drive is suitable for a small or medium-sized house.