DOORS 101 - Maintenance
Once you have hung your finished and sealed doors there still will be some maintenance involved. Most stains will age over time – some will fade, some will deepen in color.

In the Finish and Sealing section we mentioned that it is good to keep extra stain on hand in case a panel shrinks and you get an exposed tan line. Panel shrinkage does sometimes occur and when the panel expands back to its natural state, the panel this tan line usually becomes hidden back into the mortise.

Read the instructions on the product that you use to see what type of maintenance will be required and what products to use or not use for occasional cleaning. Some sealers will react to household cleaners so be sure to read the labels.

Most interior doors will not require much additional maintenance. Most quality lacquers will last on interior doors as long as you own them. Some reasons that would require you to strip and reseal an interior door would be if something was applied to the door such as ink, paint, or adhesives or if there was some external damage to the door that may require repair.

Because entry doors are exposed to elements more than interior doors, there is a little more regular maintenance. This regular maintenance is not unlike a schedule for a painted door and the maintenance will vary dependant on the exposure. Most polyurethanes have excellent ultraviolet light inhibitors but will still fade or yellow with exposure to sunlight. Doors that receive overspray from gutters, sprinklers, or other moisture sometimes will get cloudy looking.

Although we cannot make broad statements as to how often you may have strip the sealer from the door and reseal it – a door that has an Adequate Protective Overhang in normal circumstances may have to be resealed every four or five years. Everyone will experience a different schedule based upon their own particular circumstance. Darker finishes will accelerate this process.

When you do reseal a door you must make sure that all six sides of the door get resealed as directed in the warranty and the Finish and Sealing section.