Emerging as a popular alternative to traditional drains and downspouts, a rain chain provides a functional and aesthetic way to manage rainwater runoff from the roof of a building. While the origin of this revolutionary innovation can be traced back to Japan’s “kusari-doi,” it has gained popularity and is widely used in various parts of the world. The structure of a rain chain comprises a series of linked cups, combined with other decorative elements, arranged vertically along a chain. In this article, we will unravel the virtues of rain chains and help you decide whether it is suitable for you.
See also: A guide to rain gutters
Functions of a rain chain
A rain chain serves several important functions. Here is a list of all you can do by installing a rain chain:
Rainwater collection
They channel accumulated rainwater efficiently from the roof to the ground, away from the foundation of the building. By doing so, soil erosion and water damage to landscaping structures is successfully prevented.
Erosion prevention
By not letting the rainwater flow into the soil, they help prevent soil erosion around the foundation of the building, thereby maintaining structural integrity. It also helps preserve the surrounding landscape.
Aesthetic enhancement
They serve as a visually interesting decorative element to building exteriors, gardens and other outdoor spaces. Being available in various designs, materials and finishes, they allow endless possibilities and combinations for you to choose from based on the architectural style of your home.
Sound generation
The rainwater flowing down the chain creates a gentle and relaxing sound. This sound is calming and therapeutic for many, thereby making rain chains a popular choice in achieving a more tranquil and soothing outdoor environment.
Versatility
Available in various lengths and configurations, rain chains can easily adapt to different roof designs, rainfall intensities and aesthetic preferences. Customisation is easy and the installation can be tweaked to suit individual needs.
Pros and cons
If you are considering rain chains for your rainwater drainage needs, here is a list of pros and cons to help you choose better:
| Pros | Cons |
| Adds a decorative element to exterior spaces; available in different designs and materials to complement different architectural styles. | They have a limited capacity and might not be equipped to handle heavy rainfall, leading to problems like overflow and inadequate drainage. |
| The cascading of rainwater creates a gentle and soothing sound that enhances the ambiance of the outdoor space. | Dripping of water from the chain can cause splashing onto nearby surfaces if not strategically placed; might lead to water damage and staining on walls and windows. |
| Directs water away from the foundation of the building to maintain structural integrity and prevent soil erosion. | In colder climates, freezing might lead to ice buildup and blackages, thereby impeding the water flow and damaging the chain. |
| They are easy to install and can be integrated into existing drainage systems or mounted directly onto the roof edge with minimal tools and expertise. | They require occasional cleaning to remove debris and sediment buildup and periodic polishing to maintain appearance. |
| The versatility in styles and configurations allows vast scope for customisation to suit individual preferences and stylistic requirements. | Might come at a higher price than traditional downspouts, especially if made of high-quality materials such as copper or brass. |
How to install a rain chain?
Installing a rain chain is mostly a simple DIY job. Here’s how you can do it:
Materials required
Apart from the rain chain apparatus, a ladder or a step stool is a must for the installation. You would also require mounting hardware such as hooks, brackets or hangers. Additionally, it is advisable to keep pliers, screwdriver and a drill handy as they may come in need.
Surface preparation
Select the area where you wish to install the rain chain and clear any accumulated debris or obstructions. Do not forget to ensure that the area is clean and free from any obstacles that could hinder the installation process.
Determine placement
A rain chain should ideally be positioned near the downspout outlet or gutter opening for effective rainwater collection. Therefore, it is essential to position it strategically. Determine the required length and the height from the ground to the roof accurately by using a measuring tape.
Attach mounting hardware
If you are using extra hardware like hooks or brackets, attach them securely to the mounting surface by following the instructions. Make sure that the hardware can support the weight of the heavy material of the rain chain.
Install rain chain
Hang the rain chain apparatus vertically and securely from the mounting hardware. If required, adjust its length by removing any excess links with pliers. The apparatus should be positioned to direct water away from the building’s foundation towards a drainage area.
Test and adjust
Once installed, test it by pouring water from a hose onto the roof. Check whether the water is flowing properly and adjust the position accordingly to ensure efficient drainage and minimal splashing.
Add a splash basin or collection container
If you want, you can place a splash basin or collection container at the bottom to redirect the flow of water. The container should be stable and properly positioned to prevent water from pooling around the foundation and damaging it.
Maintenance
Inspect the rain chain periodically for signs of damage or corrosion. To ensure optimal performance at all times, make sure to clean it as needed by removing debris, dirt or mineral buildup.
FAQs
What is a rain chain?
A rain chain is a series of linked cups arranged vertically along a chain along with decorative elements, that acts as an alternative to traditional downspouts and directs the flow of rainwater.
How do rain chains work?
Rain chains capture rainwater as it flows off the roof and sends it downward along the chain to the ground or a collection container.
Are rain chains effective for managing rainwater runoff?
Rain chains can effectively manage rainwater runoff from the roof and minimise water damage caused to the foundation of the building and the surrounding landscape.
What materials are rain chains made of?
Copper, brass, aluminium, stainless steel and metal alloys are some common materials rain chains are available in.
How do you install a rain chain?
The installation simply involves attaching the apparatus to the mounting surface using hooks or brackets and positioning it near the downspout outlet for effective capturing of water.
Do rain chains require maintenance?
Rain chains require less maintenance than regular downspouts but might need occasional cleaning to remove debris, dirt and mineral buildup to ensure optimal performance.
Are there different styles and designs of rain chains available?
Cup chains, link chains and themed chains featuring decorative motifs are some types and styles of rain chains available to suit your preferences.
| Got any questions or point of view on our article? We would love to hear from you. Write to our Editor-in-Chief Jhumur Ghosh at jhumur.ghosh1@housing.com |
