|Title||Field Measurements of Ventilation Rates in Attics|
|Publication Type||Journal Article|
|Year of Publication||1995|
|Authors||Walker, Iain S., and Tom W. Forest|
|Journal||Building and Environment|
Field tests were carried out in two flat ceiling, residential attics at a dedicated test site over a two year period. The scope of this paper is to present measurements of ventilation rates, indoor-attic exchange rates, temperatures and wood moisture contents at various locations in the attics. Attic ventilation rates are correlated with wind speed, wind direction, and attic-outdoor temperature difference. Wind speed is shown to be the dominant driving force for ventilation; however, wind direction is important particularly when the attic is sheltered.