Insulating And Ventilating An Attic

Good ventilation allows the heat and moisture to escape.

Insulating and ventilating an attic.

A finished attic should be insulated much like the rest of the house with insulation in the walls and ceiling. How to insulate a finished attic. At first it may seem odd to add insulation for warmth and then purposely allow cold air to enter the attic through vents but this combination is the key to a durable and energy efficient home. In addition insulation baffles must be installed at the point where the attic floor meets the roofline to prevent the attic insulation from migrating into the cavities and restricting the airflow from the soffit vents.

How to determine whether you need better attic ventilation. Insulation at least r 38 or more is there for heating and. In the summer good attic ventilation reduces heat buildup. The soffit vents allow convective air movement from the soffits of the residence to the ridge vent.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Both can be added to uninsulated attics or layered over existing material. Loose fill or batt the common term for blanket insulation. One last thought attic ventilation is not there to get rid of heat it is there to get rid of excess moisture accumulating from the home.

In the winter warm moist air seeps into the attic from the living space below. For diy attic insulation you ve got two choices. About attic ventilation natural attic ventilation. That cuts cooling costs and prolongs shingle life.

Best ventilation is open soffit venting to a open vented ridge vent. That means insulating the attic floor only not the walls and having vents in the roof. It can do both.