How to Fix a Sagging Car Roof Lining

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A sagging car roof lining can be a very frustrating problem to have. Not only does it look ugly, but it also can make your car feel claustrophobic on hot days when the sun is beating down on you through the top of your vehicle.

Luckily, there are many different solutions for this problem that don’t require any heavy lifting or major repairs. In this blog post, we will cover two different ways to fix a sagging car roof lining so that you never have to worry about it again!

What Causes a Sagging Car Roof Lining?

The most common causes of a sagging car roof lining is a) when the adhesive used to attach the roof liner has lost its bond due to extreme heat and b) the foam of the headboard itself deteriorates over time.

Heat from direct sunlight or hot weather can make the glue shrink, which causes it lose its grip and allow air inside while also causing it to sag downwards.

Fixing Your Car Roof Lining

Essentially there’s two approaches to fixing your cars roof lining:

  • Method 1) This is the more thorough approach and involves removing the entire headlining board and replacing the headlining material.
  • Method 2) This is a lot simpler but won’t work in all cases. This involves applying glue or other adhesive to the headlining material in an effort to stop the material sagging.

Method 1) Remove Headlining Board Foam and Apply New Material

This process involves removing the entire headlining board and is described in detail in the below video by Reece’s Auto Headlining Repairs.

Here’s what you’ll need:

  • Scrubbing Brush
  • Sander (optional)
  • Blow gun (optional)
  • Air blower (optional)
  • Protective equipment / clothing
  • 3M Hi-Tack Spray Adhesive

Summary of Steps:

  1. Remove the headlining board
  2. Remove the old foam using a scrubbing brush. If hard to remove use a sander.
  3. Ensure the surface is fully clean of old foam
  4. Obtain new headlining material
  5. Spray glue over entire headliner board (double in high-stress areas)
  6. Spray new headlining material
  7. Push new material onto headlining board, taking care of all divets and gaps
  8. Overlap material
  9. Flip the headlining board and apply spray to overlapping material
  10. Cut excess material leaving around 2 inches and wrap material over edges
  11. Clean the headlining board then re-install

Method 2) Glue / Adhesive

This is the easiest method to try at home and simply involves removing the headlining material and re-applying using an adhesive spray.

Here’s what you’ll need:

  • 3M Headliner Adhesive
  • Mask
  • Gloves

Summary of Steps:

  1. Open all the windows of your car (for ventilation)
  2. Use screwdrivers to remove all hadles and lights
  3. Gently remove the lining from the roof
  4. Spray the surface of liner one section at a time, hold in place and allow to dry for 30 seconds
  5. Replace handles and lights

Other Car Roof Lining Repair Options:

Fabric / Vinyl Repair Tape

If there’s a more severe sag in your car roof lining this could be an option worth trying as well:

– Cut off any excess vinyl tape from around edges where you don’t want it to stick – this ensures that it doesn’t protrude outwards when applied inside headliner cavity during installation process.

Steaming

Use a hand-held steam cleaner to apply steam to the liner itself and bring the original glue back to life.

– Run a steamer up and down the sagging area of your headliner, using gentle pressure.

Thumb Tacks or Twist Pins

This method involves using thumb tacks or twist pins to pin the headliner back into place.

– Use your fingers to push on the edges of the liner where you want them, before inserting the pins.

Car Roof Headliner FAQ

How much does it cost to fix car roof lining?

This is difficult to answer as prices vary dependent on a variety of market factors. A good starting point would be asking your local car upholstery shop whether they offer this service or for an estimate based on the materials you require.

What is the best glue for roof lining?

The most recommended adhesives for car headliners are 3M Headliner Adhesive, 3M High Tack Adhesive Spray, and Sikaflex Advehise, which have proven to be durable and effective. These glues can withstand a range of temperatures and conditions as well as being resistant to chemicals, salt water and UV light.