Roof outlets

Roof drains - a key element of effective drainage

Roof drains are essential elements of every roof drainage system. Their main task is to drain rainwater. Effective operation of the drains prevents water from accumulating on the roof surface. This is extremely important for the durability of the entire building structure. At Onninen, we perfectly understand the importance of the correct selection of roof drains. That is why we offer a wide selection of high-quality products from renowned brands.

Types of roof drains available from Onninen

Our range includes various types of roof drains. They are adapted to various needs and installation conditions. Among them, we can distinguish:

• Gravity roof drains
• Heated roof drains
• Emergency roof drains
• Vacuum roof drains

Gravity roof drains are the most popular and economical choice. They work great in standard installations. They use the natural force of gravity to drain water. They are easy to install and do not require additional power. Heated drains, on the other hand, work great in colder climates. They prevent water from freezing in the winter. They guarantee the system is passable all year round.

Emergency drains are an additional safeguard in the event of heavy rainfall. They prevent overloading of the main drainage system. Vacuum drains are an advanced solution for large roof surfaces. They use the vacuum phenomenon to increase the efficiency of water drainage.

Key brands of roof drains in the Onninen offer

In our offer you will find products from renowned manufacturers. We especially recommend roof drains from the Wavin and HL brands. These are proven solutions, valued by professionals. The products of these companies are characterized by high quality of workmanship and reliability. They guarantee long-term and trouble-free use.

Wavin offers a wide range of roof drains adapted to different types of roofing. The brand's portfolio includes both simple gravity drains and advanced vacuum systems. HL, on the other hand, specializes in innovative solutions. Their drains are often equipped with additional functions, such as heating or anti-backflow protection.

How to choose the right roof drain?

Choosing the right roof drain is key to the effectiveness of the entire drainage system. When choosing, several important factors should be considered:

• Roof area and expected water load
• Roof covering type
• Climate and weather conditions in a given location
• Required drainage capacity
• Any additional functions (e.g. heating)

A properly selected roof drain ensures effective water drainage and protection of the building structure. At Onninen, we often come across questions regarding the selection of drains. Our experienced specialists will be happy to advise on the optimal choice. In doing so, we take into account the specifics of each project and the individual needs of the customer.

Our experience shows that it is crucial to accurately estimate the amount of water that the system will have to drain. This directly affects the required capacity of the inlet. For large roof surfaces, we often recommend vacuum systems. They provide much higher efficiency than traditional gravity solutions.

In the case of flat roofs, we pay special attention to backflow protection. They protect against water backflow in the event of system overload. For regions with a colder climate, heated inlets may be necessary. They prevent water from freezing and blocking the system in the winter.

Roof drains are not only a technical element, but also an important factor influencing the aesthetics of the roof. Our offer includes products with various designs. This allows the drains to be matched to the architecture of the building. We are increasingly seeing projects where the drains are deliberately exposed as a decorative element.

Recently, we used innovative vacuum inlets in a project for a large shopping center. This allowed us to significantly reduce the number of downpipes. This had a positive impact on both the aesthetics and functionality of the facility. The system worked perfectly during heavy rainfall, effectively draining water from the extensive roof surface.

When renovating older buildings, we often face the challenge of matching new inlets to existing infrastructure. Our experts can find optimal solutions even in the most complicated situations. We use the latest technologies and materials to ensure long-term tightness and reliability.

The correct installation of roof drains is just as important as their selection. At Onninen, we offer not only products, but also expert advice on installation. Our specialists are happy to share their knowledge on best installation practices. This ensures optimal functioning of the drainage system and minimizes the risk of potential problems in the future.

In our daily practice, we see how important it is to regularly clean and maintain roof drains. Even the best product will not function properly if it is blocked by leaves or other debris. That is why we always recommend our clients to develop a schedule for regular inspections and cleaning of the drainage system.

Onninen, as a leader in the installation industry, constantly monitors the latest trends and innovations in the field of roof drainage. We regularly update our offer with the most modern solutions available on the market. Thanks to this, our customers always have access to products using the latest technologies and materials.

We invite you to contact our specialists in order to select the optimal solution for your project. Many years of experience and extensive knowledge of our team guarantee professional advice and the highest quality of service. At Onninen you will find not only products, but above all comprehensive support at every stage of investment implementation.