Sparkyjames Posted February 20, 2018 Share Posted February 20, 2018 Does anyone know what these rectangles are ? I came into a multistorey car park and realised I had these that just appeared on my roof, it looks like condensation but I'm not to sure... what do you guys think? Quote Link to comment Share on other sites More sharing options...
TomsFocus Posted February 20, 2018 Share Posted February 20, 2018 Yeah its just condensation. It's because the roof is 'thin' there so stays colder, there are cross braces across the edges and centre where the headliner touches keeping those areas warmer. Quote Link to comment Share on other sites More sharing options...
isetta Posted February 20, 2018 Share Posted February 20, 2018 i think it is also affected by sheets of sound deadening stuff they stick on the underside, i reckon the outline will coincide with that. that rectangle will not cool so quickly so condensation will form differently Quote Link to comment Share on other sites More sharing options...
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