Get matched with top deck staining pros in Corsica, SD

If you don’t treat a cedar fence, it will turn from reddish brown to gray over time. You can keep the cedar from graying and retain its attractive, deep red color by sealing your cedar fence with a stain that keeps the wood’s oils in and serves as a barrier against the sun’s UV rays.

Various kinds of substances and deck preservatives act as protective coatings for wood to prevent rot, which is caused by water getting into the wood and creating cracks and splits. Stains, paints, and sealants are the three best options to protect your wood, but there are also oils, varnishes, and waxes available. You’ll need to reapply sealant at least once per year, and you should inspect your wood deck regularly to look for signs of damage or general wear and tear.

In most cases, sanding an old deck before staining it is necessary to achieve a decent finish. If your old deck has a relatively new stain finish on it and you're only doing touch-ups, you can generally skip the sanding part. However, if your goal is to make the deck look and function better, sanding first is a must. 

You can apply stain over peeling stain, but it’s not a good idea. Your old stain will get in the way of your new stain bonding to the wood, so you’re likely going to see the same issue again shortly after application. Your best option is to sand off the old stain and clean the surface thoroughly before applying new stain.