I'm seeking advice as to what type of concrete staining to do for our screened in porch. It's 20x20 area located in the rear of our home. We have both a bar and seating area with patio furniture in the screened area and would like to stain the concrete brown. My main problem is deciding whether to stain it as an indoor area or an outdoor area. My husband is deployed so any advice will be wonderful seeing as I'm doing this while hes away.