Panoramic sunroof rattling

[FRG16v]

I bought a Mk3 clio with a Panoramic sunroof about 2 months ago and it started rattling about 2 weeks after I bought it. It usually rattles when I start the car then it would go away after 15 minutes. Does anyone know what could be the cause?

 

[Don]

Are the screws tight on the sunroof part of the roof?

 

[FRG16v]

Yeah just checked the screws and they are all tight