Best Choice Material to Build an Overpass Aisle Ceiling-Clear Polycarbonate Sheet


Overpass aisles are imposing structures integrated into buildings to create a pathway at heights and allow pedestrian traffic to pass through them. In recent years, they have become an element that not only provides functionality but also enhances the aesthetics of buildings. One of the key points for construction is their roofs; to achieve this, it is necessary to find the ideal material.

Join us and discover the material chosen by contractors and recommended by suppliers for the construction of an overpass aisle ceiling.

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1. What is an overpass aisle?

An overpass aisle is a large structure that rises several meters above ground level. Its purpose is to allow people to walk over roads often obstructed by wide avenues or railroad tracks.


2. What are the key aspects to consider when building an overpass aisle?

Overpass aisles are constructions with four key elements; the first is the structural support built with high-resistance materials such as concrete, steel, or wood, ensuring stability and safety for pedestrians. The second element is the roof, which protects people from the sun, snow, or rain. Initially, the material used was glass, but it changed to plastics such as acrylic with time. The third element is the lighting so that users can move comfortably at any time of the day. The fourth and last element is architectural aesthetics, which improves the style of the building.


3. What is the most recommended material to use for the overpass aisle ceiling?

Contractors, design experts, and suppliers recommend using clear polycarbonate sheets for ceilings. This thermoplastic has displaced glass because it is virtually unbreakable and will not crack, fracture, scratch, or warp from exposure to adverse weather conditions. It has a lifespan of 15 to 20 years. 

Until not long ago, acrylic sheets were the option to replace glass since they were a less rigid material. That flexibility allowed them to resist impact, rocks, wind, or hail. The problem lies in their useful lifetime, which is only 5 to 8 years, depending on their thickness. In addition, they require continuous maintenance so that their transparency and visibility are not affected.


4. What are the advantages of clear polycarbonate sheets for ceilings?

The clear polycarbonate sheet is the ideal material for the construction of an overpass aisle ceiling for several reasons; the first is that the material has 98% transparency, very similar to glass; this quality allows the passage of light, gives the feeling of bigger spaces, and allows passersby to enjoy the view and its surroundings.

Another advantage is its excellent resistance and durability, which allows it to withstand adverse weather conditions from heavy rain and intense sunlight without losing its transparency and creating a layer of protection for passersby. In addition, its high thermal insulation capacity reduces heat transfer to the interior, creating a more comfortable and energetically efficient environment.

Compared to glass and other materials, the light weight of a clear polycarbonate sheet facilitates installation and reduces the structural load, making construction more efficient and cost-effective.

Finally, clear polycarbonate sheets provide significant design advantages because of its flexibility; it can be easily formed into curved shapes to create a more aesthetically pleasing roof.


Want to know more about clear polycarbonate sheets?

Find out more about the uses of different types of polycarbonate honeycombs.

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