Knoxville, Tennessee, experiences a humid subtropical climate featuring hot, humid summers and cold, wet winters. Mold and mildew thrive in hot and humid conditions, often on exterior surfaces, such as sidings, driveways, and decks.    Understandably, one of the most common pressure washing FAQs is whether pressure washing effectively removes such buildups in this type of climate. It does! And that means it enhances the property’s appearance and prevents premature surface damage, too.