No More Naked Pergolas! Part 2

Posted in: This & That
By: Chad Gono

In No More Naked Pergolas! Part 1, we discussed our inspiration for creating plastic pergola covers. Our goal was to offer a solution for people to enjoy their pergola rain or shine without sacrificing their natural light. Thus, our Polygal Base and Cap System and Topgal Standing Seam System were born. Both systems use a multiwall polycarbonate sheet that comes standard with 10-year warranty that insures your material will stay looking great for years without yellowing or brittling. The sheets are lightweight and easy to install on new or existing structures, and once they're in place, they require less maintenance than similar products. Plus, the sheets block harmful UV rays which not only keeps you cooler, but it also protects your stained wood and furniture.

Now, let's break down some of the differences to help you pick the right system for your project. 

Polygal Standard Grade (Economy) Standard 8mm clear Polygal Base & Cap

The standard base and cap system can be installed on rafters or shade slats. This is also the best option for curved or arched structures. The sheets can easily be cut on site for that perfect custom fit. System Includes:
  • Sheets
    • 4ft or 6ft wide
    • 24ft long (28ft long in bronze)
    • Color options include bronze, clear, and white.
  • Polycarbonate base and cap connecting system
  • Polycarbonate U-profile
  • Screws & Washers
  • Vent tape
  • Installation instructions
  • Youtube installation video
  • Support from our inside / outside sales staff
Topgal (Elite) 8mm Bronze Topgal

We made several upgrades to our standard base and cap to create our top-of-the-line system, Topgal.
  • These sheets are extruded with a standing seam that:
    • creates a virtually leak proof product
    • is easily connected with clips and a heavy-duty polycarbonate cap
    • makes it impossible to install the sheets upside down
  • There are zero screws that are installed through the sheet which:
    • creates a virtually leakproof product.
    • makes it easier and faster to install
  • The Topgal system has four walls of polycarbonate, instead of the standard two walls. This creates more:
    • rigidity
    • strength
    • thermal insulation
  • Topgal comes standard with an aluminum profile instead of a polycarbonate profile which:
    • creates a much sturdier connection to the pergola below.
    • looks sexier
The standing seam, clip connecting system, and heavy-duty polycarbonate cap makes this product virtually leakproof. Of course, you want to give it as much slope as you can to allow for water to run off. This option provides a superb upgrade for the client with a bigger budget. System Includes:
  • The sheets
    • 23 5/8” wide
    • 28ft long
    • Color options include bronze, clear, and white.
  • Standing Seam system connected with metal clips and a heavy-duty polycarbonate cap (screws through clips which hold sheet together, no screws through sheet)
  • Aluminum edge profile (bronze and anodized colors)
  • Screws for clips
  • Vent tape
  • Installation instructions
  • Youtube installation video
  • Support from our inside / outside sales staff
Side-by-Side Comparison
Topgal (Elite) Standard (Economy)
Slope Leak proof on any slope, but for best results we recommend at least a 1/12 slope For best results, minimum 2/12 slope
Cost Most expensive Most cost-effective
Structure Type  Purlins Rafters  or Shade Slats
Sheet Structure 4 Wall Structure 2 Wall Structure
We are passionate about our Pergolas. We are passionate about our Polygal and Topgal covers. Here’s to 14 more years and another 50,000 jobs sold! Facebook us. Instagram us. Linkedin us. Send a pigeon. Send an RFQ through the website. Come check out our showrooms! We have one in Houston, Dallas, Austin, and San Antonio!  

How Can We Help?

We'd love to answer your plastic questions or quote your next project.