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Glossary

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A I B I C I D I E I F I G I H I I I J I K I L I M I N

O I P I Q I R I S I T I U I V I W I X I Y I Z

 

Infiltration

The unintended penetration of outside air into a building. Forced infiltration is prompted by wind. Stack-effect infiltration is brought on by temperature-related buoyancy differentials between inside and outside air.

 

Insolation

The total amount of incident solar radiation (direct, diffuse, and reflected) reaching an unit area of a surface.

 

Irradiance

The amount of radiant flux incident upon a unit area of a surface.

I-P units: Btu/hft2

 

 

 

 

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