Li Li
February 14, 2025

Guide to Installing a Gutter System

Recently, many professionals have asked us how to install a perfect water gutter under a cantilevered structure. Today, we’re sharing a simple and practical method based on our years of experience—check it out below! This installation technique is ideal for cantilevered structures, such as pergolas. With Big Hands’ premium materials, including high-quality boards and aluminium products, the maximum cantilever length can reach 800mm, ensuring both safety and durability.

Guide to Installing an Overhang Gutter System

 

 

Installation Steps

1.Cut the Top Panel

Cut back the steel sheet and foam on the top panel by about 50mm, leaving enough space for the installation.

2.Fix the U-Channel

Insert the U-channel between the steel sheet and the foam. Secure it firmly with screws from both the top and bottom.

3.Install the Gutter Hooks

Nail the gutter hooks onto the U-channel, ensuring they are stable enough to hold the weight of the gutter.

4.Place the Gutter

Carefully place the gutter onto the hooks and adjust it to ensure it is level and secure.

5.Bend the Steel Sheet

Bend the uncut steel sheet downward at about 1/3 of the gutter’s width to create a slope, allowing water to flow smoothly into the gutter.

 

Why Choose the Overhang Style?

✅ Enhanced Protection: The overhang design provides additional coverage, shielding your pergola and outdoor space from rain, sun, and debris.

✅ Improved Shade: Extends the shaded area, creating a more comfortable outdoor environment for relaxation or entertainment.

✅ Architectural Appeal: Adds a visually striking element to your pergola, enhancing its overall design and aesthetic value.

✅ Versatile Functionality: Perfect for integrating with lighting, fans, or climbing plants, offering both practicality and beauty.

✅ Durable Performance: The overhang structure is designed to withstand weather elements, ensuring long-lasting durability and stability.

 

Guide to Installing a No-Overhang Gutter System

Does your pergola have no overhang? Are the columns positioned right at the edge of the roof? No worries! Today, we’re introducing a brand-new gutter installation method—No-Overhang Style, specifically designed for pergolas without overhangs. It’s simple, practical, and efficient! ✨

 

 

Installation Steps

1.Choose the Right Accessories

Use Bighands Drip Edge, specially designed for panel structures, to ensure a perfect fit and smooth drainage.

2.Cut the Panels

Trim approximately 50mm from the roof sheet and foam backing to create space for the drip edge installation.

3.Install the Drip Edge

Insert the drip edge into the cut section, making sure it fully wraps around the foam panel for waterproofing and protection.

4.Secure the Gutter Brackets

Nail the gutter brackets to the top of the columns, ensuring they are sturdy and can bear the weight.

5.Place the Gutter

Position the gutter into the brackets and adjust it to align seamlessly with the drip edge.

6.Adjust the Roof Sheet Angle

Bend the roof sheet downward at a one-third point of the gutter to create a natural slope, allowing water to flow smoothly into the gutter and preventing pooling.

 

Why Choose the No-Overhang Style?

✅ Space-Saving: Ideal for pergolas without overhangs, maximizing the use of column edge space.

✅ Efficient Drainage: The combination of drip edge and gutter ensures rainwater is quickly diverted, protecting the pergola structure.

✅ Aesthetic and Functional: The installation is neat and visually appealing, complementing the overall design of the pergola.

 

Tips

Before installation, check the load-bearing capacity of the columns and panels to ensure safety.

Be precise when cutting the panels to avoid issues during installation.

With the No-Overhang Gutter System, even pergolas without overhangs can have an efficient drainage solution!

That’s it for today’s tips on installing a water gutter under cantilevered conditions—practical and efficient!
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