Headliner Mounting procedure?

[Salvagedcircuit]

My MJ was missing a headliner. I eventually found one and installed it. However it seems the center rear sags a bit and obstructs the rear glass about 1in. Is this normal? The headliner was not creased or cracked. The rear b-pillars are the only thing that hold in the headliner in the back. Is there some bracket I'm missing? In the photos below I'm holding up the center with my hand in a before / after.

[eaglescout526]

Nope. Nothin holds up the back at all. Front is held by the visors and the clips, the pillars basically hold it up. Maybe the headliner is weak in the center?

[JZLAJeep]

When we took ours out to recover, it looked like there was velcro type material near the back edge. I wonder if something like that would help without taking the risk of sending some self tappers through the roof. 

[eaglescout526]

41 minutes ago, JZLAJeep said:

velcro type material

Oh yeah I forgot about this. 
yes there’s some Velcro at both front and rear. 

[Salvagedcircuit]

That's not a bad idea! I ended up velcro-ing the front dash carpet the other day and it came out excellent. I don't see why it would not work there.

[pizzaman09]

Yep, there is Velcro.  I put a new piece on for freshness on mine.  FYI, I'd you do any butyl mat on the roof, avoid the top center as it will space down the headliner making it more challenging to fit.  As a result of covering my entire roof in Killmat, the headliner now sits forward farther than it should.

[Salvagedcircuit]

18 minutes ago, pizzaman09 said:

Yep, there is Velcro.  I put a new piece on for freshness on mine.  FYI, I'd you do any butyl mat on the roof, avoid the top center as it will space down the headliner making it more challenging to fit.  As a result of covering my entire roof in Killmat, the headliner now sits forward farther than it should.

 

This is good to know! I did not have plans to put sound deadening on the inside roof. Tryin to keep my center of mass on the wayyy low

Gotta put the sport in sportruck

[eaglescout526]

57 minutes ago, pizzaman09 said:

a result of covering my entire roof in Killmat, the headliner now sits forward farther than it should.

Really? Course I only covered the middle sheet metal section and not the cross bars that’s support the roof and other structural parts. But my headliner has no fitment issue. 

[pizzaman09]

55 minutes ago, eaglescout526 said:

Really? Course I only covered the middle sheet metal section and not the cross bars that’s support the roof and other structural parts. But my headliner has no fitment issue. 

This was how I did the sound deadening.

[eaglescout526]

1 hour ago, pizzaman09 said:

This was how I did the sound deadening.

Interesting. I did mine the same exact way with no issues to how my headliner sits.