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Automotive tinting specifics

Tinted Glass Sunroof

Tinted glass sunroof is OEM glass with factory tint built into the sunroof panel; aftermarket film can be added over it to further reject heat without the LTA's windscreen VLT rule applying.

Many modern sunroofs come with OEM tinted glass — a green or grey tint baked into the glass during manufacture. The intent is partial heat rejection without darkening the cabin too much.

The LTA's 70% windscreen VLT rule applies to the front windscreen, not sunroofs. This means aftermarket sunroof tint can go meaningfully darker than the windscreen, which is useful given the overhead solar load in Singapore.

For panoramic sunroof EVs (Tesla Model Y, Polestar 2, BYD Sealion, Volvo XC40 Recharge), a darker aftermarket ceramic film on the sunroof can drop interior temperature several degrees on top of the OEM tint.