
Skylights are an excellent way to add natural light to a room, but choosing the right material for your skylight is crucial. Skylights can be made from glass, acrylic, or polycarbonate. Acrylic sheeting is commonly referred to as plexiglass and is a popular alternative to traditional glass due to its superior resistance to discoloration, impact, and chemicals. Polycarbonate, on the other hand, is known for its durability and strength. Glass skylights offer excellent visibility but are heavier and more expensive. This article will explore the key differences between plastic (plexiglass) and other materials to help you determine whether your skylight is made of plastic or plexiglass.
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What You'll Learn
- Acrylic skylights are lightweight, impact-resistant, and crystal clear
- Polycarbonate skylights are durable, but with a hazy view
- Glass skylights are heavy, costly, and require structural support
- Plastic skylights are prone to wavy distortion but can be tinted
- Impact-modified acrylic is used in signage, displays, and doors

Acrylic skylights are lightweight, impact-resistant, and crystal clear
Skylights are an excellent way to add elegance and dimension to any space by bringing in natural light. They are also a great alternative to traditional lighting and windows. Skylights are usually made of glass, but many consumers now prefer plastic due to its advantages. Acrylic, commonly referred to as plexiglass, is a popular choice for skylights. Here are some reasons why acrylic skylights are a great option:
Lightweight and Easy Installation
Acrylic skylights are lightweight compared to glass or polycarbonate skylights. This makes installation a breeze and reduces the load on your roof. If you have a delicate roof, acrylic is a better fit as it exudes lightweight elegance.
Crystal Clear and Excellent Insulation
Acrylic skylights are known for their crystal-clear appearance, allowing sunlight to filter through with unparalleled brilliance. They offer excellent insulation properties, helping to maintain the desired indoor climate. If brightening the room is your priority, acrylic is the ideal choice due to its superior clarity and light transmission.
Impact-Resistant and UV Stable
Acrylic is a strong impact-resistant material, making it incredibly durable and long-lasting. It is also naturally UV stable and can withstand years of exposure to the sun. This feature helps prevent the "bleaching" effect on interior surfaces over time. Acrylic skylights can also be made impact-modified, increasing their strength and durability even further.
Design Flexibility and Customization
Acrylic can be formed into various shapes, such as domes or pyramids, increasing design flexibility. It can also be produced in different finishes, such as clear, white, or tinted bronze, allowing you to customize the light transmission and warmth in your space. Acrylic skylights can be made larger than glass, making them ideal for situations where considerable natural light is needed.
In summary, acrylic skylights offer a combination of lightweight construction, crystal-clear appearance, impact resistance, and excellent insulation properties. They are a popular choice for consumers due to their design flexibility, durability, and ability to brighten any room with natural light.
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Polycarbonate skylights are durable, but with a hazy view
Skylights are an excellent way to add natural light to a building, brighten a room, and complement the interior style of a house. While skylights have traditionally been made of glass, many consumers now prefer plastic alternatives such as acrylic and polycarbonate. Acrylic is also commonly referred to as plexiglass.
Polycarbonate skylights are known for their durability and strength. They are impact-resistant and capable of withstanding extreme environmental conditions, such as hailstorms or deep snow coverings, without bending, breaking, or fracturing. Polycarbonate is also lightweight, making it easier for workers to handle and reducing the obtrusiveness of the supporting structures. It is also resistant to extreme temperatures, from sub-zero to extremely hot conditions. Polycarbonate skylights are long-lasting and do not require regular replacement or maintenance. They are also flexible and can be adapted to curved profiles on-site without the need for special equipment.
However, one of the drawbacks of polycarbonate skylights is that they offer a hazy view. While polycarbonate is transparent, it does not match the crystal-clear appearance and brilliance of acrylic skylights. Acrylic is known for its superior clarity, allowing sunlight to filter through with unparalleled brilliance.
If you value clarity and lightweight elegance, acrylic skylights might be the better choice. Acrylic is also a good option if your roof is on the more delicate side, as polycarbonate weighs more due to its durable properties. On the other hand, if you prioritize durability, toughness, and are not bothered by a slight haze, then polycarbonate could be the right choice for your roof.
In summary, while polycarbonate skylights offer exceptional durability and strength, they fall short in terms of visual clarity when compared to acrylic skylights. The decision between the two materials ultimately depends on your specific needs and preferences for your skylight.
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Glass skylights are heavy, costly, and require structural support
Skylights are a great way to brighten up a room, add warmth, and complement the interior style of a house. They can also serve functional purposes, such as providing ventilation and daylighting. When choosing a skylight, it is important to select the right type for your specific needs and preferences.
Glass skylights are a common choice due to their durability, variety of films for light and UV control, numerous configurations, and styles. Glass is also thermally efficient compared to other glazing types. However, glass skylights are heavy and require significant structural support, which can increase material and installation costs. If you are considering a glass skylight, it is important to ensure that your roof can bear the additional load.
As an alternative to glass, you may want to consider acrylic skylights, commonly referred to as plexiglass. Acrylic is known for its crystal-clear appearance, allowing sunlight to filter through with unparalleled brilliance. It is also lightweight, impact-resistant, and has excellent insulation properties. Acrylic sheeting is a popular choice for skylight domes due to its natural strength and UV stability.
Another option is polycarbonate, which offers high impact resistance and durability. Polycarbonate skylights can withstand impacts that would typically damage acrylic skylights. They are a good choice if your roof anticipates heavy traffic or requires additional structural support. Polycarbonate sheets also offer superior safety features compared to other glazing materials.
Ultimately, the choice of skylight material depends on your specific needs and preferences. Glass skylights may be more costly and heavy, but they offer durability, style, and UV control. Acrylic skylights provide excellent light transmission, clarity, and insulation. Polycarbonate skylights, on the other hand, offer unparalleled durability, impact resistance, and safety.
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Plastic skylights are prone to wavy distortion but can be tinted
Skylights are a great way to add elegance and dimension to any space by bringing in natural light. While skylights have traditionally been made of glass, many consumers now prefer plastic skylights. Plastic skylights are made of acrylic and polycarbonate materials. Acrylic sheeting, commonly referred to as plexiglass sheeting, is the most common alternative to traditional glass. It is known for its crystal-clear appearance, allowing sunlight to filter through with unparalleled brilliance. Acrylic skylights are also lightweight, impact-resistant, and offer excellent insulation.
However, one downside of plastic skylights is that they can be prone to wavy distortion. This distortion can add a ripple effect to the view, impacting the clarity of the skylight. This is especially true for acrylic skylights, which are more prone to clouding and cracking over time due to heat exposure. As a result, acrylic skylights may require more frequent replacement, increasing the long-term costs of ownership.
To mitigate the wavy distortion and other issues associated with plastic skylights, tinting can be applied. Window tinting films can be installed on the interior or exterior of flat plastic skylights to lessen the intensity of sunlight while still allowing natural light to enter. Modern tinting options can reduce glare and block harmful UV rays without significantly diminishing the brightness and warmth of the natural light. Tinting can also enhance safety by reinforcing the skylight, making it more resistant to cracks or damage from storms, hail, or falling debris. Additionally, tinting can improve energy efficiency by reducing heat gain in the summer and heat loss in the winter, leading to potential cost savings on energy bills.
When considering tinting for plastic skylights, it is recommended to consult with professionals to ensure a flawless installation that does not void any warranties. The cost of tinting can vary depending on factors such as the size of the skylight, the type of tinting material, and the complexity of the installation. Overall, tinting can be a great way to enhance the performance and aesthetics of plastic skylights while protecting your home and health from the sun's harmful effects.
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Impact-modified acrylic is used in signage, displays, and doors
Skylights are an excellent alternative to traditional lighting and windows, adding warmth and elegance to any space. Skylights can be made from plastic, acrylic, or polycarbonate. Acrylic sheeting, commonly known as plexiglass, is a popular option for skylights due to its strength, UV stability, and light transmittance.
Impact-modified acrylic is a type of acrylic sheeting that offers even greater strength and durability while maintaining flexibility. This makes it ideal for various applications, including signage, displays, and doors.
Signage: Acrylic, also known as plexiglass, is a popular material for signage due to its durability and versatility. Acrylic signs can be custom-painted or vinyl-coated to match specific branding or marketing needs. They are also more resistant to impact and weather incidents than glass signs, making them a long-term durable solution. Acrylic signs are also available in LED variants, providing a modern alternative to traditional neon signage with maximum light diffraction.
Displays: Impact-modified acrylic is also commonly used in displays, such as POP (point-of-purchase) displays. Its strength and durability make it ideal for showcasing products and promotions, and its flexibility allows for various display designs.
Doors: Impact-modified acrylic sheeting is suitable for use in doors due to its superior strength and flexibility. It can withstand impacts and is highly resistant to discoloration and chemicals. Acrylic is also a lightweight material, making it a good choice for doors where weight load is a consideration.
Overall, impact-modified acrylic is a versatile and durable material that is well-suited for signage, displays, and doors. Its strength, flexibility, and resistance to weathering make it a popular choice for various applications.
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Frequently asked questions
Plexiglass is a type of plastic, so if your skylight is made of plexiglass, it's also made of plastic. Plexiglass is commonly used for skylights and is often referred to as acrylic sheeting.
Plexiglass or acrylic skylights usually have a dome shape, which stands out from the roof. They often have a tinted colour, such as bronze or grey, and can have a wavy distortion.
Plexiglass or acrylic skylights are lightweight, impact-resistant, and can block harmful UV rays. They are also more affordable than glass skylights and can be formed into various shapes.
Plexiglass skylights may not offer the same clarity and transparency as glass skylights. They may also be more prone to condensation and outside noise due to their design.
Yes, you can replace plexiglass skylights with glass skylights, which offer improved thermal insulation, noise reduction, and transparency. However, glass skylights may be heavier and more expensive.



































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