Too Much Attic Ventilation

With a power switch or a thermostat installation an attic fan can be turned on to let hot air from the attic out.
Too much attic ventilation. All it takes to grow mold in your attic is stagnant humid air. If the attic is insulated with fiberglass batts just pull back any that are blocking the flow of air. Homeowners can too easily inadvertently block them when insulating the attic. While effective at pulling in cooler air the biggest problem posed by this type of soffit vents is their positioning.
Dangers of too much ventilation. As a certified licensed home inspector it is not correct to say too much ventilation is bad for an attic unless rain moisture is getting in. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. And when you put too many products on your roof that s improper ventilation.
What happens is people put too many products on their roof. I have received several questions and comments since writing about attic ventilation. You can also contact your local municipality to check on building code in your area. If there s blown in insulation like ours rake back the fluffy stuff with a 3 or 4 ft long 1 x 6 or use a garden rake or hoe.
Roof ventilation keeps the air moving and stops mold from growing but too much ventilation can be just as bad as having none. Do not use mechanical means electric attic fans. Is this too much ventilation. 2 focusing only on heat buildup.
A wind turbine catches the wind and spins a fan which pulls hot air outside. Venting a homes attic is a very important best building practices will say 50 at the ridge and 50 at the soffits unobstructed. The two main dangers associated with too much ventilation involve roof damage and increased utility bills. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.
Most building codes require a ratio of 1 150 ventilation space to attic floor space.