Which is the most common type of PV array mounting system for sloped roofs?

Solar power has become an increasingly popular choice for homeowners and businesses. For sloped roofs, choosing the right PV array mounting system is essential to maximize energy output, ensure durability, and maintain the integrity of the roof.

Why are mounting systems important for sloped roofs?

The foundation of any solar installation is the mounting system, which securely holds the solar panels to the roof while optimizing their orientation for sunlight exposure. On sloped roofs, the mounting system must consider several factors:

  1. Structural stability to protect against wind and rain.
  2. Ease of installation to minimize labor and time costs.
  3. Compatibility with roofing materials such as tile, shingles, or metal.
  4. Aesthetic integration to preserve the exterior appearance of the property.

Most Common Mounting System: Track-Based Systems

For sloped roofs, track-based mounting systems are the most commonly used choice. This system features aluminum or stainless steel tracks that run horizontally across the roof. Panels are secured to these tracks using clamps or brackets.

Reasons why track-based systems dominate:

  1. FlexibilityTrack-based systems are suitable for a variety of roof types, including tile roofs, asphalt shingle roofs, and metal roofs.
  2. StabilityThe track structure evenly distributes the weight of the panels, ensuring a safe installation even on steep slopes.
  3. Adjustable OrientationUsing tracks, installers can adjust the panel angle to optimize sunlight capture, which is especially important on roofs with less than ideal slopes.
  4. Easy MaintenancePanels attached via tracks can be easily accessed and adjusted for maintenance or upgrades.
  5. Cost EffectivenessThe widespread use of track-based systems has resulted in competitive pricing and standardization, which reduces costs for installers and homeowners.

Components of Track-Based Systems

  • TracksDurable metal poles that provide a base for attaching solar panels.
  • Rooftop AttachmentsHooks or brackets that attach tracks to the roof structure.For tile roofs, use specialized tile hooks to minimize roof damage.
  • ClampsSecure solar panels to tracks. End clamps secure panels at their edges, while middle clamps secure panels placed side by side.
  • Flashings and SealantsPrevent leaks at roof penetrations and keep them waterproof.
  • Other Mounting Systems for Sloped RoofsWhile track-based systems are the most common, there are alternative solutions for specific scenarios:
  • Trackless SystemsInstead of using traditional tracks, these systems use clamps to secure panels directly to rooftop attachments. They are lighter and quicker to install, but may not be suitable for every roof type.
  • Ballasted SystemsTypically used on flat roofs, but on low-slope roofs they can provide a non-penetrating option when roof integrity is a concern.
  • Integrated Roof SystemsPanels are built as part of the roof structure itself, doubling as both roof covering and solar array. These are less common due to higher costs and complex installation.

How SIC Solar Supports Sloped Roof Installations

SIC Solar specializes in designing and producing high-quality PV mounting systems for sloped roofs. Their solutions include:

Tile Roof Hooks: Durable and compatible with a variety of tile designs.

Universal Track Systems: Lightweight and strong aluminum tracks designed for quick installation and long-lasting performance.

Customizable Components: SIC Solar’s ​​mounting systems are flexible enough to accommodate different roof angles and panel sizes.

By prioritizing function and form, SIC Solar ensures that solar installations are safe, efficient, and aesthetically pleasing.

Advantages of Using a Track-Based Mounting System

  • Versatility: Compatible with most roof types and panel designs.
  • Enhanced Performance: Panels can be aligned to maximize exposure to sunlight.
  • Long-term durability: High-quality materials resist weathering and corrosion.
  • Scalability: Track-mounted systems make it easy to expand existing installations.

The widespread adoption of track-mounted systems on sloped roofs reflects their unmatched versatility, stability, and cost-effectiveness. With innovative solutions from companies like SIC Solar, homeowners and businesses can enjoy reliable and sustainable solar installations for years to come. Whether it’s a traditional track system or a more customized approach, choosing the right mounting system is a critical step in optimizing solar power generation.

Slate roof solar panel mounts