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Windshield Replacement: Laws, Regulations and Standards Autostone Windscreens follows Car Manufactures OME standards which are set down for the requirement for Windscreen replacement.


An OEM windshield will be identical to the original, factory installed windshield that came with your car when it was brand new. These windshields may not necessarily manufactured by the company who made the windshield originally installed on your car, but they are nearly identical in almost every way.

This glass is manufactured according to your car maker’s very specific regulations, and should match your original in size, shape, and color. The thickness and durability should be identical as well.

It’s important to note that these windshields are also certified by the Department of Transportation, so you can be assured of their safety.


Aftermarket glass is manufactured by auto glass companies who don’t necessarily contract with specific auto makers.

Since these companies are not manufacturing OEM windshields under contract for the auto manufacturer, they don’t have to abide by specific manufacturer guidelines.

In fact, due to copyright laws, auto glass companies are actually prohibited from producing windshields that are identical to the factory-installed versions. Obviously, the size and shape will have to be identical, because otherwise the glass would not fit into your vehicle. However, the thickness and durability may be different, and the color of the tint may vary slightly as well.

Some consumers complain that their aftermarket windshields leak or produce excess noise. Others may notice a wavy quality to the glass, or the different color to the tint may be displeasing.

While the differences are usually small, very discriminating car owners may be displeased with their aftermarket glass. Others, however, report little to no difference between their car’s original windshield and their new aftermarket version.

Like most things, the decision may come down to money. Insurance companies may only cover aftermarket glass, because it is less expensive. This leaves the car owner to decide whether they want to pay extra for an OEM windshield. Many aftermarket windshields work out very well for the consumer, but those not willing to take a risk on slightly lower quality will often choose to invest in an OEM windshield.

One final note on OEM windshields vs aftermarket: If the vehicle is leased, the leasing contract may specifically state that the windshield can only be replaced with an OEM windshield. Any time the windshield in a leased vehicle is to be replaced, the driver should check their leasing agreement very carefully for this specification. Otherwise, extra charges may be assessed when the vehicle is returned at the end of the leasing period. to which

we follow the Sika installation procedures as shown.


A vehicle’s windshield is a very important design component, as it not only protects the driver but also provides structural support for the vehicle.

The windshield performs three important functions in the event of an accident:

The windshield keeps the passengers from being thrown out of the vehicle, even if they don’t wear a seat belt. If the occupant is thrown from the vehicle, then he or she is at risk of the car rolling over them as well as sustaining severe impact-related injuries.

Did you know that 75% of those thrown out of the vehicle do not survive the accident? The windshield provides reinforcement for airbag deployment and acts as a barrier between the airbag and the outside of the car.

If an improperly installed windshield pops out during an accident, the airbag is no longer inside the car, where it should be in order to protect the driver and front-seat passenger. Instead, the airbag ends up on the outside of the car, where it is useless.

The windshield provides up to 60% of the roof crush protection so that the roof of the vehicle does not collapse in a roll-over accident. If the windshield falls out in the event of a rollover accident, the roof of the vehicle can collapse.

This situation can be much more deadly for occupants of the vehicle because it makes head trauma more likely. Windshield replacement checklist What are main elements to a quality windshield replacement?

There are four:

1. a professional certified technician,

2. the right adhesive,

3. the right glass,

4. a warranty.  

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