An effective approach to roof ventilation has been developed. It is aimed at mitigating summer overheating of inhabited rooms located immediately below the roof. The air flows in a ventilation layer made of parallel ducts and built between roof coverings and insulation, thus subtracting heat from the roof structure. It is then collected by a header and eventually discharged into the atmosphere by a extraction fan. The problem of obtaining a homogeneous flow distribution in the ventilation layer is solved by a very simple regulation mechanism, placed in the header and adjusted on site. The adjustment procedure is based on measurements of surface temperature distribution performed by an infrared camera.
Assessment of flow distribution in a roof with forced ventilation by infrared thermography / L., Tarozzi; E., Caffagni; Muscio, Alberto. - STAMPA. - (2007), pp. 373-376. ( 9th A.I.T.A. – International Workshop on Advanced Infrared Technology and Applications Leon, Mexico 8-12/10/2007).
Assessment of flow distribution in a roof with forced ventilation by infrared thermography
MUSCIO, Alberto
2007
Abstract
An effective approach to roof ventilation has been developed. It is aimed at mitigating summer overheating of inhabited rooms located immediately below the roof. The air flows in a ventilation layer made of parallel ducts and built between roof coverings and insulation, thus subtracting heat from the roof structure. It is then collected by a header and eventually discharged into the atmosphere by a extraction fan. The problem of obtaining a homogeneous flow distribution in the ventilation layer is solved by a very simple regulation mechanism, placed in the header and adjusted on site. The adjustment procedure is based on measurements of surface temperature distribution performed by an infrared camera.
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