Over time, your roof is going to accumulate mold, mildew, algae, lichen and moss. The only way to take care of the build up is to have professional roof cleaning in Dallas, TX done. So call up a pro to get the work started. Essentially power washing for the top of your house, Dallas roof cleaning will remove all the buildup from your shingles or tiles and leave you with a roof that looks brand new. The difference is really night and day. Contact a cleaner to get an estimate for free.