What’s the Difference Between U-Profile and H-Profile for Polycarbonate in Wet Areas?

Both profiles are made for polycarbonate sheets — but they do different jobs.

Here’s how to tell which one you need.

🔗 H-Profile = Sheet Connector

The H-profile joins two sheets side by side.It locks them together tightly to stop leaks and movement.

Use it when you’re building wide roofs, walls, or covers using multiple sheets.

📏 U-Profile = Edge Finisher

The U-profile goes on the open ends of a sheet.It covers the hollow channels to keep out dirt, bugs, and moisture.

It gives your project a clean look — and helps the sheet last longer.

🌧️ Perfect for Wet Weather

In Oregon and Washington, moisture is a big deal.Both profiles help protect against rain, mold, and damage from damp air.

🔧 Use Them Together

Most projects need both:Use H-profiles between sheets and U-profiles on the edges.

That way, everything is sealed, secure, and built to last.

🎨 Match Your Color and Size

We carry U and H profiles in clear, bronze, and opal — in 8 ft and 12 ft lengths.They match perfectly with our 5/16" (8mm) twin-wall sheets.

🚛 Delivered with Your Sheets

We deliver all profiles and accessories across Oregon and Washington.Order now and get everything you need, straight to your door — every Saturday.