How To Ventilate An Attic

That cuts cooling costs and prolongs shingle life.

How to ventilate an attic. The unmentioned evil of attic ventilation fans is that they often pull interior air conditioned air up from the home into the attic through the ceiling via wires pipes and other air leak penetrations. Good ventilation allows the heat and moisture to escape. Don t avoid ventilating your attic for fear you re letting cold air into the house. Noticed one of the attic vents was not working.

Once this happens the negative pressure that is created in the house pulls hot outside air in causing the air conditioner to work harder. Your actual living space is sealed and insulated at the attic floor the attic is outside this envelope. In the winter warm moist air seeps into the attic from the living space below. Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed.

That keeps your attic dry and reduces. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. Things have been ok low energy bills house very comfortable. If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the manufacturer s warranty.

Told that the 2 attic power vents are the only attic ventilation i have the house does have vented soffits every other soffit cover is vented. How to determine whether you need better attic ventilation. Most building codes require a ratio of 1 150 ventilation space to. Help purchased home 8 years ago with 2 power attic vents.