Air Sealing band joists techniques, when done properly, yields the best results.
U- factor (U=1/R) represents conductive heat loss-smaller is better. Double Low-e windows typically range from .3 to .4; clear double glass is typically .5 to .55; and aluminum-frame, single-glazed windows can be over 1.
SHGC-Solar heat Gain Coefficient is the amount of direct solar radiant heat that gets through the window. Lower SHGC reduces summer cooling loads, but higher SHGC increases solar heat gain in winter.
Blower Door Setup--This procedure is used to help find air leaks and measure the tightness of the building envelope. The blower door fan blows air into (or out of) the house, measuring how well the building envelope contains pressure. This can be very handy, especially in a house with complex air leakage paths
Dense-Packing Cellulose- Air pressure in the enclosed cavity pushes the loose fibers tightly against the sides, packing then into place. Once installed, the high-density material slows air movement through the cavity, gives the insulation a higher R-value, and prevents future settling.
More Photos to come soon..............
