[header] How to paint exterior walls with a paint sprayer [title] Cover all plants, sidewalks, railings, and other sensitive surfaces around the wall with a tarp or a cloth. [step] Secure the tarp or cloth with stones or weights. [title] Cover any windows and doors in or around the wall with tarps or sheeting. 
[step] Secure the sheeting with tape so that there are no gaps between the tarp or sheeting and the wall or the surface. [title] Remove any elements that are not easily covered, such as protruding grates, screws, outlets, or switches.