Rooftop terraces provide a unique opportunity to escape the confines of indoor living and embrace the outdoors. However, the uneven surfaces commonly found on rooftops can pose challenges for both design and functionality.

In this comprehensive guide, we'll explore everything you need to know about rooftop terrace slope correctors, from their importance to benefits and beyond.

Slope Corrector from Raaft

Introducing our new Slope Corrector – that can both serve when there is a need for a slope and as a slope adjustment. This design characteristic differentiates Raaft’s slope corrector as a discrete addition rather than a standalone pedestal.

Below, we have listed some of the most crucial benefits of Raaft’s slope corrector:

  1. Enhanced Safety: Uneven surfaces on a rooftop terrace pose safety risks, such as tripping hazards. Slope correctors help create a level and safe environment, reducing the likelihood of accidents and injuries. This is especially crucial for areas frequented by people, such as outdoor seating or recreational spaces.
  2. Cost-Effective Solution: Investing in slope correctors can be a cost-effective solution compared to potential expenses associated with water damage and structural repairs caused by inadequate drainage. The preventive nature of slope correction helps avoid more significant costs in the long run.
  3. Compliance with Building Codes: Proper slope correction contributes to compliance with building codes and regulations. Building codes often specify requirements for water drainage and safety, and incorporating slope correctors ensures that your rooftop terrace meets these standards.

Slope Corrector from Raaft

Solving your sloping needs. Our slope corrector serves its purpose when there is a need for a slope or slope adjustment.

slope corrector

Understanding the Need for Slope Correction

Challenges of Uneven Surfaces

Rooftop terraces often suffer from uneven surfaces, leading to poor water drainage, soil erosion, and limitations in how the space can be utilised. Slope correctors offer a solution by providing a levelled foundation that addresses these challenges.

Importance of Proper Water Drainage

Effective water drainage is critical for the longevity of rooftop structures. Slope correctors play a vital role in ensuring that rainwater is directed away from the terrace, preventing water damage, and maintaining a stable foundation.

slope corrector for rooftop terrace

Benefits of Slope Corrector for Rooftop Terrace Systems

Slope correctors play a vital role in ensuring the proper functionality, safety, and longevity of surfaces like rooftop terraces. Here are some key benefits associated with the use of slope correctors:

  • Effective Water Drainage:
    Slope correctors help maintain a consistent slope on surfaces, facilitating efficient water drainage. This prevents the accumulation of rainwater and minimises the risk of ponding, which can lead to structural damage, leaks, and other water-related issues.
  • Prevention of Structural Damage:
    Uneven surfaces can cause water to pool in certain areas, putting additional stress on the structural components of a building. By using slope correctors to create a uniform slope, you reduce the risk of structural damage caused by water infiltration and accumulation.
  • Increased Lifespan of Flooring Materials:
    Proper slope correction contributes to the longevity of flooring materials by preventing water from stagnating on the surface. This is particularly important for materials like wood, tiles, or pavers, as prolonged exposure to water can lead to deterioration, warping, or mould growth.
  • Versatility and Adaptability:
    Many slope correctors, such as adjustable pedestals or rubber shims, offer versatility and adaptability to different terrains and flooring materials. This flexibility allows for the creation of custom slopes tailored to specific design requirements and environmental conditions.
  • Weather Resistance:
    High-quality slope correctors are often made from durable and weather-resistant materials. This ensures that they can withstand exposure to various weather conditions, including rain, sunlight, and temperature fluctuations, without compromising their effectiveness.
slope corrector rooftop terrace system

Rooftop Terrace Solutions from Raaft

Whether you are looking to incorporate a rooftop terrace into a new building or add it to an existing property, it’s important you understand what challenges you might face and the products that are available to help you resolve these.


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.