Towards the end of 2020 ι was hearing a strange noise from the roof light and only when the car was turning, an annoying ''tzzzz" but not when it was rolling in a straight line. I waited a few days and at the beginning of 2021 i went to the repair-shop. I asked them to remove the Headlining (here we call it inner roof) for inspection and on the occasion, i told them to soundproof the roof of the car.

That ''squeaky'' sponge was removed permanently, the inner roof was cleaned thoroughly

and as you can there are 3 small holes, the 2 of them was from a bottle of beer that a neighbour throw out from his balcony towards the trash-can on the road (but landed in my car which was beside) and the other from a juvenile which hit my roof as a sign of ''resistance'' because i had a Greek flag sticker in the trunk door. According to his religion the neighbour should drinking because he could face a fine and public whipping in his country but here is Greece and the local's people assets don't count.

I didn't had the time and money to fix those holes plus the painting job so i let them for another time. The sponge that has been removed from his position a bit and the harness of the ceiling light was causing that sound.

As for the soundproof project first i bought some sheets of STP Black Silver Shop Pack, according to the manufacturer:

It is installed in any area of the car where vibration attenuation is required: external and intermediate door panels, roof, floor, engine compartment, trunk, etc.

The ceiling was ''naked'' from inside and for sure there were some vibrations because there was to support except one bracket in the middle and second i bought a cheaper material in roll form to absorb the sound.

This is the StP

which made the ceiling more ''steady'' reducing a lot the vibrations while travelling in highway.

I grab the chance to send the Headlining to a car wash (Pakistani) and they clean it, let it dry and then the Upholster guy put it back.

Here are the photos from the second material:

It was a prime opportunity to knock them from the inside, though

other than that you did a pretty nice job

Impressions: the ceiling is more ''robust'', the sound was reduced to minimum while travelling and the noise from the rain drops almost vanished, before the ''doung-doung'' sound was present and the whole results is that the ''tin effect'' that other cars had does not apply to mine.

I am happy, i wish i have done it years ago but as we say here ''Better late than never". 😉

3 minutes ago, Thefeliciahacker said:

It was a prime opportunity to knock them from the inside, though

I had time pressure,the car must be ready at noon to take it to go to work (2nd shift),i went to the Upholsering shop early in the morning as 1st client.

Now when the time comes would be a Bondo (stucco) job.

39 minutes ago, D.FYLAKTOS said:

Now when the time comes would be a Bondo (stucco) job.

it can be done easily through PDR btw

1 hour ago, Thefeliciahacker said:

it can be done easily through PDR btw

In the center of 2 dents part of colour is missing.

9 hours ago, D.FYLAKTOS said:

In the center of 2 dents part of colour is missing.

Protect it from rust please