The rainwater chain, a symphonic and delicate accessory for your garden !

A rainwater chain offers a refined alternative to conventional downspouts while bringing a unique decorative touch to outdoor spaces. Traditionally used in Japanese architecture, it combines functionality and aesthetics ; its cascading structure transforms the descent of rain into a visual and auditory spectacle, echoing a natural harmony that enhances any garden. By integrating such a feature into an outdoor setting, one can subtly highlight the link between architectural elements and nature !

Introduce a Japanese style in your garden with the rainwater chain!

In Japanese culture, the garden is designed to foster peace and contemplation. Each element is chosen for its symbolic value, and the rain chain perfectly aligns with this philosophy. Originally known as kusari-doi, the rainwater chain replaces the traditional downspout with a vertical series of cups or links, allowing rainwater to flow gently from the roof to the ground. This flow not only guides the water efficiently but also produces a soft, meditative sound that contributes to the serenity of the space.

Its presence outside, whatever it is, small or not, introduces an element of movement and fluidity ; as water trickles down, it mirrors the natural rhythm of rainfall, drawing the eye and soothing the mind. Whether installed on a porch, near a window or integrated into a water feature, this new element reinforces a sense of balance and harmony.

Do you know how to choose it?

This kind of roof’s drainage system is composed of various essential elements: horizontal gutters, vertical downpipes and a range of accessories such as elbows, nipples or hangers. Before selecting a rainwater chain or a gutter system, it is important to know the selection criteria ; follow us.

The surface area

The surface area is the first one ; be careful because underestimating it could result in overflow or water damage around the foundation of a house. Therefore, it's important to match the rain chain or gutter dimensions to the actual surface area, ensuring that all runoff is properly managed during heavy rainfall.

The slope

A steeper roof slope allows water to flow more quickly, reducing the time it remains on the surface. While a greater slope can ease runoff, a minimum slope of 5° is recommended to maintain an adequate and consistent water flow. This ensures that water reaches the rain chain or gutter system without stagnation or backflow. 

Proper slope alignment is essential to optimize the function of the entire drainage setup !

The climate

Local climate conditions directly influence the choice of your rainwater chain because it must still be capable of managing the expected volume of rainwater ; in arid areas, a lighter system may suffice. Understanding the specific rainfall patterns of a region helps avoid either over-dimensioning or underestimating the system's needs.

The dimensions

The diameter and length of the rainwater chain or gutter must correspond to the amount of water expected during peak rainfall. The correct balance ensures optimal performance and visual coherence.

The type

Two main types of gutters are typically used: hanging gutters and creeping gutters : 

• Hanging gutters are positioned along the edge of the roof. Their popularity is due to their relative ease of installation and robust construction. Hanging gutters offer reliable performance and are available in a wide variety of materials. However, due to their exposed position, they may require more frequent maintenance to prevent clogging from leaves and debris ;

• Creeping gutters are integrated into the roof’s structure, fixed to the rafters with hooks. They are generally reserved for buildings with steeply pitched roofs. Their design makes them more discreet and often more resistant to weathering. However, their installation is more complex and they may not be suitable for all architectural styles.

The material

Each material presents distinct characteristics : zinc is known for its durability and patina over time when aluminium offers lightweight, corrosion-resistant performance, and while PVC stands out for its affordability and ease of installation. Galvanized steel brings strength and resilience.

The shapes

Gutters and chains are available in a variety of shapes: half-round, square or custom-designed. This criteria impacts water flow, ease of maintenance, and overall appearance ; while half-round shapes provide good flow characteristics, square designs may offer a more contemporary look.

Inspired by Japanese tradition, the rainwater chain transforms rainfall into a spectacle of movement and sound, while fulfilling its role in the drainage system. Choosing the right model involves understanding the characteristics of the roof, the climate and the available materials. By combining form and function, it contributes to a harmonious outdoor environment where water, structure and landscape coexist in refined simplicity.