While today's vinyl siding can last for quite a few years, eventually it needs to be replaced. Understanding the signs that indicate there may be a problem with your home's siding will help make it clearer when siding replacement may be necessary.
Damage to the Siding
The most obvious sign that siding replacement is necessary in the near future is when there is visible damage to the siding. This could take the form of warping, bubbling, mold, cracking, holes or siding that is very faded or won't hold paint for more than a few years without it starting to come off. In the case of paint, vinyl siding shouldn't need to be painted more than every 10 years or so.
Damage to the Interior of the Home
One of the less obvious signs that siding is in need of replacement is when there's damage to the walls inside the home, such as wallpaper or paint peeling off. This sometimes occurs when siding isn't adequately keeping water out of the home. It may be due to loose siding that was installed improperly or that was damaged by wind, for example.
High Energy Bills
Siding that is damaged can make it more difficult to keep the home at the proper temperature, especially if the home isn't very well insulated. New siding, and perhaps more insulation in the home, can help to lower high heating and cooling costs that have risen over time due to damaged siding.
Some signs of siding damage might not be immediately visible. This is the case with dry rot, which tends to damage the less visible parts of the siding first instead of the top layer. Tapping on the siding can help test whether this is an issue, as siding with dry rot will be noticeably weak.
Extent of Replacement
If the damage is in just one area, it may be possible to only replace that siding, but if the rest of the siding has faded at all, any replacement siding will be very obvious as it will not match exactly in color. Some people replace damaged siding in the front of the home with that from a less visible area of the home and then put the newer replacement siding in the less visible area. This can be a good strategy for those who can't yet afford to replace all of the siding on the home, but it is still a temporary solution.