There are several reasons why your Holden Commodore roof lining might start to sag and trust us, this is typically found across all the various models from your sedan Commodore roof lining to the Commodore wagon roof lining:

1. Age: Over time, the adhesive that holds the headliner to the roof can deteriorate and cause the fabric to sag.

2. Heat and Humidity: Extreme temperatures and high humidity can cause the adhesive to weaken and the foam backing to deteriorate, leading to sagging. Australian weather is notorious for scorching Summers where the thermometer can definitely hit the high ranges of 40+ degrees Celcius.

3. Poor Installation: If the headliner was not properly installed, it may start to sag. This is especially common if aftermarket modifications have been made. So, always do seek a professional for your commodore roof lining repair.

4. Moisture: If there’s a leak in your car, water can get into the headliner and cause it to sag. Common sources of leaks include the sunroof, door seals, and windows. So, always consider keeping these areas shut closed and properly sealed during wet climates.

5. Smoking: If you smoke in your car, the smoke can cause the adhesive to deteriorate faster. If you ever wondered why your car still smells after cleaning, there is a high chance that the smell could be etched into your roof lining material.

6. Wear and Tear: Regular wear and tear can also cause the headliner to sag, especially if people frequently touch or push on the headliner. As experts in the field, we commonly find the Holden Commmodore that is approaching the 10 year mark, will start to show serious signs of sagging, if not earlier.

If you notice your car’s headliner starting to sag, it’s best to address the problem sooner rather than later to prevent it from getting worse. Considering the most common, VE Commodore roof lining replacement cost, could increase if there are more complications involved.