[GSBN] Decrement factor of SB walls

[martin hammer]

Hello all,

Anyone know the "decrement factor" for straw bale walls?  I hadn't even
heard of this term until today.  It is defined as:

The reduction in cyclical temperature on the inside surface compared to the
outside surface.

Thus, a material with a decrement value of 0.5 which experiences a 20 degree
diurnal variation in external surface temperature, would experience only a
10 degree variation in internal surface temperature.  Material thickness,
mass, and insulating properties are all factors.

Any info on this is appreciated.


Martin Hammer
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