Wallpaper lasts an average of around 15 years, but there is some variance. The type of wallpaper matters, as vinyl wallpaper tends to last the longest—sometimes 20 years or more—while a peel-and-stick wallpaper, which is the easiest to install for DIYers, will usually only last for around five years. Exposure to high humidity, smoke, and UV rays from sunlight can also limit the lifespan of your wallpaper, as can heavy traffic in the installation area.

To determine how many rolls of peel-and-stick wallpaper you need, measure the square footage of the walls you’re covering and divide that by the square footage that each roll covers. Add 10% to 20% of your total square footage to account for pattern matching or damage while installing.

Having dated, peeling, or otherwise damaged wallpaper can decrease the value of your property, so removing that before listing your house is nearly always a good idea; however, since wallpaper tends to be a personal style choice, potential buyers may or may not love your aesthetic as much as you do.

Love the look of wallpaper but want to consider property value as well? Stick with something that is easy to change. If you are thinking of selling soon, make sure your wallpaper hanging is on-point and looks professional with no crooked seams, evenly matched patterns, and minimal bubbling or other imperfections.

Once again, contact with moisture is the culprit here, though water-resistant varieties of wallpaper are less likely to become wet and develop mold. Using a high-quality exhaust fan or dehumidifier and leaving the doors or windows cracked after bathing will keep this issue at bay.