general questions about IR

["Dirk Wright" <wright@xxxxxxxxxxxx>]

I was wondering about infrared reflectance and absorption of various 
materials. I shot some EIR recently, and materials like brick, gravel, 
and mulch recorded as not reflecting (ie, not red). If a material does 
not reflect IR, can it be assumed that it absorbs light at that 
frequency? Does this further mean that these materials will soak up 
heat, or rather get hotter, than materials that reflect IR, given 
identical solar illumination? This can have implications for housing 
and landscaping design beyond the normal artistic effects. 

Be seeing you.


Dirk Wright
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