Solar panels for flat roof

In stock
58% OFF

Canadian Solar 390W Solar Panel 108 Cell All-Black HiKu6 CS6R-390MS-HL Clearance

  • Price per Watt$0.26
  • Rated Power Output 390 W
  • Voltage (VOC)36.4V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
42% OFF

Mission Solar 395W Solar Panel 66 Cell MSE395SX9R Clearance

  • Price per Watt$0.26
  • Rated Power Output 395 W
  • Voltage (VOC)45.28V
  • Number of cells66
  • Cell TypeMonocrystalline
In stock
18% OFF

M-Solar 365W Solar Panel 120 Cell BOB TXS6-365120BB Clearance

  • Price per Watt$0.33
  • Rated Power Output 365 W
  • Voltage (VOC)40.8V
  • Number of cells120
  • Cell TypeMonocrystalline
In stock
21% OFF

Trina 420W Solar Panel 144 Cell All-Black Bifacial TSM-420NE09RC.05 Clearance

  • Price per Watt$0.34
  • Rated Power Output 420 W
  • Voltage (VOC)50.9V
  • Number of cells144
  • Cell TypeMonocrystalline
In stock
33% OFF

Jinko 380W Solar Panel 132 Cells JKM380M-6RL3-B Clearance

  • Price per Watt$0.38
  • Rated Power Output 380 W
  • Voltage (VOC)44.22V
  • Number of cells132
  • Cell TypeMonocrystalline
In stock
33% OFF

Jinko 385W Solar Panel 132 Cells JKM385M-6RL3-B Clearance

  • Price per Watt$0.38
  • Rated Power Output 385 W
  • Voltage (VOC)44.34V
  • Number of cells132
  • Cell TypeMonocrystalline
In stock
29% OFF

Hyundai 405W Solar Panel 132 Half-Cell Bifacial HiS-S405YH(BK) Clearance

  • Price per Watt$0.37
  • Rated Power Output 405 W
  • Voltage (VOC)45.6V
  • Number of cells132
  • Cell TypeMonocrystalline
In stock
24% OFF

Mission Solar 410W Solar Panel 108 Cell MSE410HT0B Assembled in the USA Clearance

  • Price per Watt$0.38
  • Rated Power Output 410 W
  • Voltage (VOC)37.41V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
38% OFF

Meyer Burger 390W Solar Panel 120 Cell All-Black MB-390-HJT120-BB-T2 Clearance

  • Price per Watt$0.4
  • Rated Power Output 390 W
  • Voltage (VOC)44.6V
  • Number of cells120
  • Cell TypeMonocrystalline
In stock
47% OFF

Canadian Solar 400W Solar Panel CSI CS6R-400MS-HL Clearance

  • Price per Watt$0.4
  • Rated Power Output 400 W
  • Voltage (VOC)36.8V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
7% OFF

JA Solar 405W Solar Panel 108 Cells JAM54S31-405/MR Clearance

  • Price per Watt$0.4
  • Rated Power Output 405 W
  • Voltage (VOC)37.23V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
5% OFF

VSUN 435W Solar Panel 108 Cell Bifacial VSUN435N-108BMH-BOB Clearance

  • Price per Watt$0.38
  • Rated Power Output 435 W
  • Voltage (VOC)39.12V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
38% OFF

Thornova Solar 410W Solar Panel 108 Cell TS-BB54(410) Clearance

  • Price per Watt$0.41
  • Rated Power Output 410 W
  • Voltage (VOC)37.68V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
5% OFF

Axitec 410W Solar Panel 108 Cell AXIblackpremium XXL HC AC-410MH/108VB Clearance

  • Price per Watt$0.45
  • Rated Power Output 410 W
  • Voltage (VOC)37.32V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
24% OFF

Aptos Solar 400W Solar Panel 108 Cell DNA-108-MF10 Clearance

  • Price per Watt$0.46
  • Rated Power Output 400 W
  • Voltage (VOC)36.94V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
10% OFF

Trina 410W Solar Panel 144 Cell Bifacial TSM-410-NE09RC.05 Clearance

  • Price per Watt$0.45
  • Rated Power Output 410 W
  • Voltage (VOC)51V
  • Number of cells144
  • Cell TypeMonocrystalline
In stock
30% OFF

Jinko 425W Solar Panel 108 Cells JKM425N-54HL4-B BOB Clearance

  • Price per Watt$0.44
  • Rated Power Output 425 W
  • Voltage (VOC)38.95V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
12% OFF

Jinko Solar 430W Solar Panel 108 Cells Black on Black JKM430N-54HL4-B Clearance

  • Price per Watt$0.46
  • Rated Power Output 430 W
  • Voltage (VOC)39.16V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
22% OFF

Aptos Solar 440W Solar Panel 120 Cell Bifacial DNA-120-BF10-440W Clearance

  • Price per Watt$0.47
  • Rated Power Output 440 W
  • Voltage (VOC)41.51V
  • Number of cells120
  • Cell TypeMonocrystalline
In stock
5% OFF

Aptos Solar 440W Solar Panel 120 Cells Black DNA-120-MF10-440W Clearance

  • Price per Watt$0.47
  • Rated Power Output 440 W
  • Voltage (VOC)41.02V
  • Number of cells120
  • Cell TypeMonocrystalline
In stock
22% OFF

Trina 425W Solar Panel 144 Cell All-Black Bifacial TSM-425-NE09RC05

  • Price per Watt$0.5
  • Rated Power Output 425 W
  • Voltage (VOC)51.4V
  • Number of cells144
  • Cell TypeMonocrystalline
In stock

Phono Solar 440W Solar Panel 108 Cells Bifacial PS440M8GFH-18/VNHB Clearance

  • Price per Watt$0.5
  • Rated Power Output 440 W
  • Voltage (VOC)39.61V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock

Axitec 550W Solar Panel 144 Cell Bifacial AXIbipremium XXL HC AC-550MBT/144V Clearance

  • Price per Watt$0.41
  • Rated Power Output 550 W
  • Voltage (VOC)49.9V
  • Number of cells144
  • Cell TypeMonocrystalline
In stock

Hyundai 585W Solar Panel 156 Cell Bifacial HiS-S585OJ Clearance

  • Price per Watt$0.39
  • Rated Power Output 585 W
  • Voltage (VOC)53.7V
  • Number of cells156
  • Cell TypeMonocrystalline
In stock
5% OFF

Canadian Solar 450W Solar Panel 108 Cells Black CS6.1-54TM-450 Clearance

  • Price per Watt$0.52
  • Rated Power Output 450 W
  • Voltage (VOC)38.9V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock
28% OFF

Q CELLS 410W Solar Panel 132 Cell Q.PEAK DUO BLK ML-G10+ Assembled in the USA

  • Price per Watt$0.57
  • Rated Power Output 410 W
  • Voltage (VOC)45.37V
  • Number of cells132
  • Cell TypeMonocrystalline
In stock

REC 420W Solar Panel 132 Cell REC420AAPURE2

  • Price per Watt$0.6
  • Rated Power Output 420 W
  • Voltage (VOC)49.1V
  • Number of cells132
  • Cell TypeMonocrystalline
In stock
8% OFF

Axitec 550W Solar Panel 144 Cell Bifacial AXIworldbipremium XXL HC MT AC-550MBT/144US

  • Price per Watt$0.46
  • Rated Power Output 550 W
  • Voltage (VOC)50.2V
  • Number of cells144
  • Cell TypeMonocrystalline
In stock
17% OFF

Q CELLS 425W Solar Panel 108 Cell Q.TRON BLK M-G2+ Assembled in the USA

  • Price per Watt$0.6
  • Rated Power Output 425 W
  • Voltage (VOC)38.67V
  • Number of cells108
  • Cell TypeMonocrystalline
In stock

Q CELLS 415W Solar Panel 132 Cell Q.PEAK DUO BLK ML-G10+ Assembled in the USA

  • Price per Watt$0.64
  • Rated Power Output 415 W
  • Voltage (VOC)45.41V
  • Number of cells132
  • Cell TypeMonocrystalline
In stock

Phono Solar 590W Solar Panel 144 Cells Bifacial PS590M8GF-24/TNH

  • Price per Watt$0.47
  • Rated Power Output 590 W
  • Voltage (VOC)52.68V
  • Number of cells144
  • Cell TypeMonocrystalline
In stock
15% OFF

Q CELLS 435W Solar Panel 108 Cell Q.TRON BLK M-G2+ Assembled in the USA

  • Price per Watt$0.67
  • Rated Power Output 435 W
  • Voltage (VOC)39.6V
  • Number of cells108
  • Cell TypeMonocrystalline

Pallets

Containers

In stock
24% OFF
= 660

Canadian Solar 430W Solar Panel 144 Cell Bifacial CS3W-430MB-AG Commercial 660 panels per Container

  • Rated Power Output 430 W
  • Voltage (VOC)48.3V
  • Number of cells144
  • Cell TypeMonocrystalline

Ready to ship on May 02–07

In stock
= 806

Aptos Solar 415W Solar Panel 108 Cells BOB DNA-108-MF10-415W Commercial 806 panels per Container

  • Rated Power Output 415 W
  • Voltage (VOC)37.41V
  • Number of cells108
  • Cell TypeMonocrystalline

Ready to ship on May 02–07

  • Overview
  • Articles

Solar panels for flat roof

Flat roofs are an interesting case when it comes to solar panel installations. A solar system can be incredibly beneficial for your home or business, but you have to make sure it’s installed properly. Good equipment is a big part of success, and in this section, you can find some great solar Panels for flat roofs.

Do solar panels work well on a flat roof?

Solar panels can do amazing on a flat roof. Generally, there is a lot of space for panels and you can build a powerful system on top, for example, your store or a cafe. The benefit of a flat roof is that you can adjust the positioning and the angle of your panels however you want without being constrained by the configuration. 

There are downsides of course. With flat roof solar panels, shading is more problematic. Panels often require more frequent maintenance. The installation is quite different from putting panels on a tilted roof as well and it may slightly increase flat roof solar panels cost.

Can you put solar panels on a flat roof?

Installing solar panels on a flat roof is a lot like building a ground-mounted installation. Flat roofs give you a lot of space to put the panels. But unlike slanted roofs that catch sunlight naturally, panels on flat roofs need to be put at a special angle so they can catch the most sunlight. 

There are various mounting systems designed for flat roofs, such as ballasted systems (using weights to hold panels in place), tilted racking systems, and penetrating systems that attach to the roof with anchors. The choice depends on factors like roof material, local climate, and load-bearing capacity. Depending on your location, wind exposure might affect the design and installation of the solar panel system on a flat roof. Wind mitigation measures might be necessary. The mounting may increase the flat roof solar panels price.

You have to make sure there's enough room between the panels so they don't block each other's sunlight. Clean the panels more often because dirt builds up quicker. Also, you need to check if your roof can handle the weight of the panels and stuff holding them. It's important to keep water out too, so your roof doesn't leak. 

Check local building codes and regulations regarding solar panel installations on flat roofs. Some areas might have specific requirements or restrictions.

Pros and cons of solar panels for flat roofs

Let’s list down the positive things about putting panels on a flat roof. Here are the advantages:

  1. Ample Space: Flat roofs provide more available space compared to sloped roofs, allowing for flexible panel placement and potentially accommodating a larger number of panels to generate more electricity.
  2. Optimal Sunlight Exposure: With the right tilt and positioning systems, flat roofs can be configured to achieve optimal sunlight exposure throughout the day, potentially leading to higher energy production.
  3. Aesthetics: Solar panels on flat roofs can be less visible from the ground, maintaining the building's visual appeal and architectural integrity.

A flat roof is not perfect for installing solar panels by any means. Here are the main drawbacks:

  1. Shading Concerns: Because panels on flat roofs are laid out in a horizontal plane, there is a higher risk of shading from nearby buildings, trees, or structures, which can significantly reduce energy generation.
  2. Maintenance Challenges: Debris like leaves, dust, and dirt can accumulate more easily on flat roofs, requiring more frequent cleaning to maintain optimal energy production.
  3. Waterproofing and Weight: Installing solar panels involves penetrating the roof's surface for mounting, which can create potential points of water leakage if not properly sealed. Additionally, the weight of the panels and mounting equipment must be carefully considered to prevent roof damage.

3 Best solar panels for flat roof

Here are the picks from our engineer with over 20 years of experience in installing solar systems. These will do great for commercial or residential installations. We have a variety of flat roof solar panels for sale — contact our managers to learn more about prices and warranties.

JA Solar JA-JAM54-S31-390MR solar panel 

This model suits various solar projects. JA Solar's 390W panels are suitable for home systems or small commercial setups. They are highly efficient at 20%. The panels are all-black, preserving the appearance of your home or office. They endure tough weather and have a half-cut cell design that handles shading better. The panel includes a 12-year product warranty and a 25-year output warranty.

Aptos Solar DNA-120-MF26 solar panel

The DNA-120-370 stands as Aptos Solar's simplest panel, ideal for homes. It produces 370 watts of power with an efficiency of 20.29%. The half-cut design improves shading tolerance and durability. The panel can handle 5400 Pa wind or snow loads. It includes a 25-year product warranty and a 30-year performance warranty.

Hyundai ES HiN-S365X solar panel

This panel from Hyundai ES is a great choice for a simple and inexpensive home installation. It performs well on cloudy days. Half-cut cell design decreases power losses and improves shading tolerance. The efficiency of this model reaches 20.4% — well above the market’s average. Hyundai provides a 25-year product and performance warranty for this model.

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