Page 13 - Green Builder Remodeling Field Report 2021
P. 13

ABUSE OF

                    WHAT WENT                          POWER
                    WRONG?                             “The upstairs HVAC

                    The ceiling vent hot spot          occupies a vented
                    hints at a bigger problem:         attic. Leaky ducts in
                    Uninsulated ducts traversing
                    the scorching hot                  the attic cause             Backdraft. The red area at the top of the middle wall
                    unconditioned attic space.         negative pressures,         and ceiling identifies missing insulation and
                    Even with tons of air                                          unwanted air infiltration from HVAC imbalance and
                    conditioning, the system           however, that pull          leaky ductwork.
                    can’t keep up with home            hot air down into
                    cooling.
                                                       wall cavities and
                                                       increase cooling
                                                       loads.”





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