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Cover Your Pergola

Hercules 4-Wall Leakproof Premium Pergola Covering Kit

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From $14.95/sq. ft. — Varies by Location

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Installation Service

Current, our installation service area covers the Greater Houston and Dallas–Fort Worth, TX regions. More locations are coming. Check detail Here >>>

No Fees & Contractor Welcome

  • We beat any online price, Period!
  • Credit card payments incur no additional processing fees.
  • Further discounts may apply for check or ACH payments.
  • We work with contractors and offer exclusive highly competitive pricing

Shipping & Lead Time

  • Free Curbside Delivery (48 States)
  • Base on location, some customer will receive 2 deliveries including LTL and UPS.
  • Branch Pickup (TX)
  • Delivery: 1- 2 Weeks.
  • Local Freight Terminal Pickup: 1-2 Weeks
  • Branch Pickup: As early as next business day

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125 MPH

Wind Resistance

40 PSF

Snow load

The Hercules Pergola Covering System is a complete, hurricane-resistant roof kit-not just polycarbonate panels. Each system includes heavy-duty 8mm 4-wall panels, H-Channels, screws, and the components needed for installation.

Engineered for long-term outdoor performance, Hercules is rated for winds up to 120 MPH and helps reduce temperatures underneath by up to 20°F. The UV-protected panels are designed to maintain long-lasting clarity without the common yellowing, cracking, and frequent replacement associated with lower-grade plastic roofing.

Its architectural-grade standing seam design conceals fasteners for a cleaner appearance and improved protection against water intrusion. Backed by a 10-year warranty and a leakproof system design, Hercules provides a durable, cooler, and more comfortable pergola space for years to come.

Key Benefits:

  • Complete pergola roof covering system-not just panels
  • Heavy-duty 8mm 4-wall polycarbonate panels
  • Wind resistance up to 125 MPH
  • Hail resistance
  • Helps reduce temperatures underneath by up to 20°F
  • Leakproof roof system design
  • Long-lasting panels engineered to resist yellowing
  • UV protection for a more comfortable outdoor space
  • Architectural-grade standing seam construction
  • Concealed fastener design for a cleaner appearance
  • 10-year warranty
  • Ideal for long-term residential and commercial pergola applications

Regular Lengths: 12’, 16’, 20’, 24’. Custom lengths are also available. The length that is over 25ft is required special quotation. 

System Included:

Sold by per SQ.FT. Need to customize the size, Please contact us. 

Hercules pergola roof covering systems
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3 Colors Available

  • Hercules pergola bronze roof covering

    Tinted Bronze

    Most popular color to reduce light and heat with good view.

  • Hercules pergola roof cover

    Translucent Clear

    Full transparent option for no need temperature reduction. Good for Pacific Northwest area.

  • Hercules pergola white roof shade

    Ice White

    King of heat blocker. goof fit for aluminum pergolas with modern backyard touches.

FAQ

How should you prepare your pergola?

  • Replace any rotted wood
  • Make small repairs
  • Add a fresh coat of stain

What do you need for installation?

  • Circular saw, table saw, or commercial jigsaw
  • Fine-tooth carbide blade(8-12 teeth per inch)
  • Electric drill (1/4" bit)
  • Tape measure
  • Rubber mallet
  • Putty knife
  • Oscillating tool (optional but super helpful)
  • Read Manual
  • Watch Video

What is the difference between rafters and shade slats (purlins)?

  • Rafters are the larger, primary boards that form your pergola's main structure, providing its overall strength and shape.
  • Shade Slats (Purlins) are the smaller boards running across the top of the rafters to add extra shade and a finished look.

What are pergola requirements?

To maximize the performance of your Apollo System, a slight slope is required. We recommend a minimum 4% slope, which equates to a 1-inch drop for every 24 inches of length.

How to add slope to your pergola?

If your pergola roof is flat, lateral shims offer an easy way to add the necessary slope for proper water runoff and optimal Apollo system performance.

Download the detailed installation guide here.

What is your Snow Load recommendations?

The Hercules System is rated for snow loads up to 50 PSF when purlins are spaced 23″ or less. For comparison, most home roofs are rated between 20–30 PSF. 

What is your Wind Safety recommendations?

The Hercules System is rated to withstand wind speeds up to 139 mph when installed correctly. For best performance, make sure your purlins are spaced less than 19″ apart and the cover is secured to the structure with screws (not nails).

How to Modify Your Pergola

  • Hercules pergola roof shade cover

    Slope + Rafters Only

    To prepare your structure for installation, you can either install purlins over the rafters or add blocking between them. Both methods are equally effective, so choose the one that matches your design preference. We advise against moving the existing rafters; over time, rafters can sag or bow, and adding purlins or blocking provides necessary structural reinforcement. Furthermore, shifting rafters can split or damage the wood, potentially requiring costly replacements.

  • Hercules wooden roof shade

    No Slope + Rafters Only

    To create the necessary pitch for your system, we highly recommend using lateral shims. These function similarly to shade slats or purlins by running perpendicular to your rafters. By gradually decreasing in height, they easily and effectively build the slope your roof cover requires, ensuring a simple and hassle-free installation.

  • Hercules wooden shade

    No Slope + Purlins

    To build the correct pitch for your cover, you can utilize either lateral shims or doorstop shims. Both methods are highly effective at creating the required slope—the choice simply comes down to your visual preference for the finished look.

Pergola length and width measurement guide
Pergola rafter and purlin reference guide

Get Quote

Call or text us for a faster response. Sharing your budget helps us tailor pricing to fit your needs.

A table comparing the facets of 2 products
Facet
Apollo bronze pergola cover
Apollo Cost-effective Pergola Covering Kit
View details
Hercules Premium Pergola Covering Kit
Hercules 4-Wall Leakproof Premium Pergola Covering Kit
View details
Wall Type
Wall Type
2 Wall
4 Wall
WR (mph)
WR (mph)
116
125
Snow Load
Snow Load
36
40
Leak Proof Guarantee
Leak Proof Guarantee
No
Yes
Wide Per Piece
Wide Per Piece
4 ft, 6 ft
23.63 in
  • 5 stars: 16 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
E
Ezra H.

I had been wanting to make our pergola more usable, especially when the sun was beating down or rain started coming through. This covering made a noticeable difference, and now we actually spend a lot more time outside instead of heading indoors after a few minutes. I really like that it still lets some natural light through while making the space feel cooler and protected. It turned an area we barely used into one of our favorite spots to sit and relax.

L
Leigh P.

Our pergola looked nice before, but we rarely used it because there was just too much direct sun during the day. Adding this made a bigger difference than I expected, and now my family actually spends time out there instead of leaving the space empty. I like that it still feels open and airy while giving us some protection overhead. It was one of those home improvements that seemed optional at first, but now I would not want the pergola without it.

A
Alfredo T.

We added this because our pergola was sitting unused whenever the weather was too bright, and honestly, I wish we had done it sooner. Now it feels like an actual outdoor room where we can have coffee, eat lunch, or just relax without constantly looking up at the sky. I was pleasantly surprised by how clean everything looked once it was finished, and it did not take away from the character of the pergola. It has made that part of our yard feel useful again, which is exactly what we wanted.

A
Aller T.

I never expected our outdoor space to become the spot where everyone naturally gathers, but that's exactly what happened after adding this. Even on bright afternoons, it creates a comfortable place to relax without making the area feel closed in. The panels still allow plenty of daylight, which keeps everything feeling open and welcoming. It's one of those improvements that quietly makes every day outside a little better.

G
Gigi E.

We spend so much more time outside now because this has made our patio feel comfortable even during the hottest part of the day. The roof gives just the right amount of coverage while still letting the space feel bright and open, and it has handled windy afternoons without any issues. It also made the whole backyard look more finished, which was an unexpected bonus. Looking back, this has easily been one of the best upgrades we've made to our outdoor space.

I
Ivy J.

I never realized how much the weather dictated our plans until we installed this. Now I don't have to check the forecast before inviting friends over because the space stays comfortable through both hot afternoons and unexpected drizzles. It feels solid and dependable, which gives me confidence that it'll last for years. It made our outdoor area feel like a natural extension of our home instead of just an empty space.

C
Clea G.

I was looking for a way to enjoy my patio without feeling trapped under the hot sun, and this roof system made a noticeable difference. It lets in plenty of natural light while keeping the space much cooler and more comfortable, even during the afternoon. The materials feel sturdy, and once everything was in place, I had confidence it would handle different weather conditions without constant worry. It has completely changed how often we use our outdoor space, and it honestly feels like an extension of our home.

D
Delly G.

Adding this roof system completely changed how we use our outdoor space. It provides the right amount of coverage to make the area feel more comfortable and inviting, whether we are relaxing, dining, or spending time with family. It has held up well through different weather conditions and gives us peace of mind when the forecast changes unexpectedly. We now enjoy our patio far more often because it feels like a natural extension of our home.

L
Laine N.

After years of dealing with an uncovered patio, I finally decided to add a roof system, and it completely changed how often we use the space. Now we can sit outside even during light rain, and the shade keeps the area much more comfortable on hot afternoons. The structure feels solid and dependable without making the yard look bulky or closed in. It has become one of those upgrades that quietly improves everyday life more than I expected.

A
Alfred Q.

After we added the roof covering to our patio area, it honestly became the spot where we spend most of our evenings now. The shade feels just right during hot afternoons, and I noticed the space stays much cooler even after hours under the sun. It also gave the whole backyard a cleaner and more finished look without making it feel closed in. A few neighbors have already asked where we got it because it blends so naturally with the outdoor setup.

H
Harley U.

I added this to our patio area because we wanted a space we could actually enjoy during hot afternoons, and it completely changed how often we stay outside now. The cover does a really good job softening the sunlight without making the whole area feel closed in or dark. Even during a few windy days, everything still felt solid and secure, which honestly surprised me. It ended up becoming the spot where we drink coffee in the mornings and hang out most evenings because it just feels calm and comfortable.

J
Jones U.

At first, I was not sure if adding a cover would really matter, but it ended up being one of the best upgrades I have made. The space feels calmer and more inviting now, like I can actually slow down and enjoy being outside without worrying about the weather. I find myself spending more time there, whether it is tending to my plants or just taking a quiet break during the day. It turned a once ignored area into somewhere I genuinely look forward to using.

R
Ruth M.

I didn’t realize how often we’d start using the outdoor space until we added this. Before, the pergola was nice to look at but not something we stayed under for long, especially during hot afternoons or light rain. After installing the Hercules roof covering, it just became a spot we naturally go to, whether it’s for coffee in the morning or winding down in the evening. It feels more usable now without needing to plan around the weather, and that simple change has made a big difference in how we enjoy the space every day.

M
Malou H.

I was mostly hoping this would make our patio easier to use, but the Hercules ended up changing how often we actually spend time outside. It takes the edge off the heat during the day, and when it rains, we’re not immediately packing everything up and heading indoors. One thing I’ve really noticed is how much more “finished” the space feels now, almost like we finally turned the pergola into a proper outdoor room. We’ve had quiet mornings out there, casual dinners, and even stayed outside during light showers without any issue. It’s one of those upgrades that just fits into everyday life and makes the whole backyard more enjoyable.

C
Carlo G.

I didn’t expect it to make such a big difference, but it honestly transformed the space. Suddenly our patio feels like an extension of the house and not just a spot we walk through. The shade it provides is just right, and it actually keeps the rain off better than I thought it would, so we can use the outdoor area even when the weather isn’t great. Now we find ourselves hanging out outside more, whether we’re having morning coffee or dinner in the evening. It’s made our outdoor space more comfortable and inviting, and I’m really glad we installed it.

T
Tina G.

It instantly made our outdoor space more comfortable and usable, whether it’s sunny or rainy, and it gives great shade without blocking the breeze. The way it keeps water out has been a nice surprise, and even during heavier showers I didn’t have to worry about everything underneath getting wet. Putting it up took a bit of time and some patience, but once it was done, the whole area felt like a proper outdoor room you can relax in day or night. Overall it’s added real value to our patio and we enjoy spending more time outside because of it.

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