emissive
/ɪˈmɪsɪv
/adjective technical
Having the power to radiate something, especially light, heat, or radiation.A more quantitative approach on absorption and emission of radiation in terms of absorptive power and emissive power are explained with specific references to block - body radiation....
- A reflective and emissive roof system reduces both internal heat loads and the building's contribution to the ‘urban heat-island’ effect.
- While the reflective and emissive properties of a roof are most important for its coolness, other factors such as insulation, roof orientation and roof pitch contribute to a building's overall thermal efficiency.
Derivatives
emissivity
/ noun ...- This inversion technique takes into account atmospheric effects on the radiation and spatial variations in the surface emissivity and backscatter.
- This is because metal performs well when it comes to both emissivity and solar reflectivity.
- Because of the lower roof surface temperature on roofs with a high emissivity and high reflectivity, urban heat islands can be reduced with widespread use of cool roofs.
Origin
Mid 17th century (in the sense 'that is emitted'): from Latin emiss- 'emitted, sent out' (from the verb emittere) + -ive.