Metal vs. Plastic Pedals: Choosing the Right Material for Your Rooftop Terrace System Structure

Creating a rooftop terrace is an exciting endeavour that brings together aesthetics, functionality, and durability. One crucial aspect to consider when designing your terrace system is the choice of materials for the pedestals that form the foundation of the structure. Metal and plastic are two popular options, each with its unique set of advantages and considerations.

In this blog post, we'll explore the factors to help you make an informed decision on whether metal or plastic pedals are the better fit for your rooftop terrace system.

Benefits of Metal Pedestals

Non-Combustible Steel

One of the standout features of metal pedestals, particularly those made from steel, is their non-combustible nature. This makes them a safe and reliable choice for rooftop terrace support systems. In the event of a fire, steel pedestals contribute to the overall fire resistance of the structure, providing added peace of mind for property owners and residents.

Corrosion Resistance

Steel pedestals boast exceptional corrosion resistance. This resistance is crucial when dealing with outdoor structures exposed to the elements. Whether facing rain, snow, or harsh UV rays, metal pedestals maintain their structural integrity over time, reducing the risk of corrosion-related deterioration.

Even Load Distribution

The flat base diameter of metal pedestals ensures an even load distribution across the terrace system. This feature is crucial for maintaining the stability and structural integrity of the entire installation. Uneven weight distribution can lead to sagging or structural issues over time. Metal pedestals mitigate this risk, providing a stable foundation for the terrace.

Progressive Height Increments

Metal pedestals are available in a range of height increments, offering flexibility in terrace design. This adaptability allows for the creation of level and even surfaces on uneven rooftop landscapes. The availability of various height options makes it easier to accommodate specific design preferences or address the unique challenges posed by the rooftop environment.

Reusability

Metal pedestals are designed with a focus on versatility. They can be easily removed and reused, making them a sustainable choice for terrace systems. Whether adjusting the terrace layout, making repairs, or relocating the structure, the ability to reuse metal pedestals minimises waste and adds to their overall cost-effectiveness.

Benefits of Plastic Pedestals

Easy to Install and Lightweight

A standout feature of plastic pedestals lies in their ease of installation and lightweight design. These characteristics significantly contribute to the efficiency of the construction process. With minimal effort required for placement and adjustment, plastic pedestals appeal to contractors and property owners seeking a streamlined and hassle-free installation experience.

Supports Green Building Certification

Plastic pedestals align seamlessly with the principles of sustainable construction, often contributing to Green Building certifications. By choosing plastic pedestals made from recycled materials and incorporating eco-friendly design practices, you not only enhance the environmental performance of your terrace but also contribute to the overall sustainability goals of your project.

Made from Recycled Plastics

The use of recycled plastics in the manufacturing of plastic pedestals is a testament to their environmentally friendly nature. This sustainable approach not only reduces the demand for new raw materials but also minimises the environmental impact associated with plastic waste. Opting for recycled plastic pedestals reflects a commitment to responsible and eco-conscious building practices.

Top and/or Bottom Slope Correctors

To address the challenges posed by uneven rooftop surfaces, many plastic pedestals are equipped with top and/or bottom slope correctors. These features enable the correction of slopes, ensuring a level and stable foundation for the terrace system. This adaptability is particularly valuable when working with complex or irregular rooftop layouts.

Gradient Adjustable

The ability to adjust gradients is a notable benefit of plastic pedestals, allowing for precise control over the slope and drainage of the terrace. This feature enhances functionality and addresses water runoff considerations, contributing to the overall performance and longevity of the terrace system.

Rooftop Terrace Pedestals Considerations

• Durability

  Durability is paramount when it comes to outdoor structures, especially considering the exposure to various weather conditions. Metal pedals are renowned for their strength and longevity. They resist corrosion, warping, and degradation over time, making them a durable choice for a long-lasting terrace system. Plastic pedals, while generally durable, may be more prone to wear and tear, particularly in extreme weather conditions. Evaluate the climate of your region and opt for the material that can withstand the elements effectively.
  

• Weight and Installation

  The weight of the pedals can impact the overall load-bearing capacity of your terrace. Metal pedals are typically heavier than their plastic counterparts, which might influence the ease of installation and structural requirements. If your rooftop has weight restrictions, plastic pedals could be a more suitable option due to their lightweight nature. Additionally, consider the installation process; metal pedals may require more robust support structures, affecting both cost and complexity.
  

• Cost

  Budget considerations play a significant role in material selection. While metal pedals may have a higher upfront cost, their longevity and durability can contribute to long-term cost savings by reducing the need for frequent replacements or repairs. Plastic pedals are often more budget-friendly initially but may require more frequent replacements, especially in harsh climates.

Support Structure Solutions from Raaft 

Choosing between metal and plastic pedals for your rooftop terrace system involves weighing factors such as durability, weight, maintenance, and cost. Carefully assess the specific requirements of your project, considering the local climate, budget constraints, and desired visual appeal.

As a leading UK designer and manufacturer of roof terrace and planter systems, roof decking and tiles, Raaft can assist you at every stage of the design, specification, and installation process. To discuss your ideas for a roof terrace, contact the experts at Raaft today. We’re always happy to help and answer any questions you may have.