Stain the soffit and fascia first, then mask from the windows with plastic and spray the siding. The best two siding boards close to the soffit you'll should stain by hand to stop overspray likely on to the other shade, but every little thing down below which can be sprayed. http://wooddeckpainters00864.blog2news.com/3841749/not-known-facts-about-woodscape-deck-stain