How To Ventilate An Attic

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 ventilate an attic.

In the winter warm moist air seeps into the attic from the living space below. How to determine whether you need better attic ventilation. Don t avoid ventilating your attic for fear you re letting cold air into the house. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.

If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the manufacturer s warranty. Once this happens the negative pressure that is created in the house pulls hot outside air in causing the air conditioner to work harder. That keeps your attic dry and reduces. Proper insulation and air sealing also keeps attics.

In the winter allowing a natural flow of outdoor air to ventilate the attic helps keep it cold which reduces the potential for ice damming snow that melts off a roof from an attic that is too warm and then re freezes at the gutters causing an ice dam that can damage the roof. That cuts cooling costs and prolongs shingle life. Most building codes require a ratio of 1 150 ventilation space to. Noticed one of the attic vents was not working.

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. Things have been ok low energy bills house very comfortable. Help purchased home 8 years ago with 2 power attic vents. Before we explore how to ventilate an attic space it is prudent to understand how much ventilation is needed.