.::. Some Random Terms .::. • Backdrafting (FLOW REVERSAL) The reverse flow of chimney gases into the building through the barometric damper, draft hood, or burner unit. This can be caused by chimney blockage or it can occur when the pressure differential is too high for the chimney to draw. .... • Saltillo tile A Mexican tile with a certain texture and surface finish that is frequently used to cover floors in residences. .... • Shearlings Wooled sheep and lambskins, tanned with the wool intact. ....