If you remove your old headliner intact, measure its length and width, and use these measurements as a guide while shopping.
Choose natural or lighter colors, such as beige. These won’t fade over time as much as brighter colors.
You can also remove the roof air-conditioner box and mounting plate. However, bigger items like this can be skipped if you cut a hole in your new fabric to accommodate them before applying the headliner.
You can easily cut smaller appliance holes as you apply your headliner. Do whatever feels more comfortable for you—if you’re a bit pickier when it comes to planning everything out, go with measurements. If you prefer to do things as you go, accommodate your fixtures as you apply the fabric.
Most fabric is attached to foam backing, so you will need to cut deep enough to remove the foam from the ceiling. Never reuse old foam—this is next to impossible because the foam oxidizes over time, which turns it yellow and decreases its durability.
Pry off any trim holding the headliner in place as you go.
You can also use coarse sandpaper (40- to 60-grit) instead of a bristle brush to remove foam and dried glue.
Use a separate dry cloth (without cleaner) to give the ceiling one last wipe before moving forward. General purpose adhesive cleaners can be purchased from big-box stores, hardware stores, and online marketplaces.
Adhesive spray cans have the letters “L,” “M,” and “H” on the tip of the can, which stand for “Light,” “Medium,” and “Heavy,” respectively. If the spray is applying too thick, try switching to “M. " Always purchase heat resistant glues when you can, especially if you travel often during hot weather.
Adhesive spray cans have the letters “L,” “M,” and “H” on the tip of the can, which stand for “Light,” “Medium,” and “Heavy,” respectively. If the spray is applying too thick, try switching to “M. " Always purchase heat resistant glues when you can, especially if you travel often during hot weather.
Fill in smaller spots that you miss will small spurts of spray as you go.
Turn your spray can to “M” if the cleaner is applying to thick. Even “L” might be sufficient if you’re using 1⁄8 inch (0. 32 cm) headliner.
If you have a friend that can help, have them hold the loose portion of the fabric as you install the first corner. This is a huge help and makes the process much easier. If you’re not happy with any parts of the application process or notice bubbling, peel back the fabric as soon as possible and reapply it. This won’t affect the foam or glue if it’s done within 1 to 3 minutes of glue application.
If you make a mistake, tear the headliner back immediately and reapply. If you work fast enough, you don’t have to worry about the headliner adhering to the ceiling right away.
If you use scissors, make sure the outer edge is next to the surface that’s to be flushed to the wall. [12] X Research source
If you forgot to cut holes for any items, use your hobby knife and putty knife to cut openings in the new headliner and peel off a space for the accessory, respectively.
