When it comes to pressure washing, angle is everything. Spraying at the wrong angle is like trying to clean a mirror by scratching it with sandpaper. For surfaces like shingles, windows, and siding, a direct, head-on spray can force water behind the materials, leading to mold, mildew, and, over time, structural problems.
The trick is to angle the nozzle so the water glances off the surface rather than hitting it straight on. This helps control the force and spread of the water, so you’re cleaning without risking damage.
For instance, on vertical surfaces like siding, you want to spray downward at a 45-degree angle. For horizontal surfaces like decks, keep the spray steady, moving back and forth to avoid uneven pressure on any one spot.
If you’re unsure, this is a great time to call a pro who knows how to handle these settings. They’ll be able to adjust angles and pressure to make sure every surface gets a safe and thorough clean.