How can L feet unlock diverse scenarios for rooftop photovoltaic installations?

In the field of distributed rooftop photovoltaic installations, safety, stability, and efficient construction are always the core requirements. L-feet, as a core basic component of the support system, can achieve both goals through precise matching with various accessories. What specific matching options are available?

This article will guide you through a detailed understanding of the various combinations of L feet.

[Use With Hanger Bolt]

For the common corrugated steel sheet (including trapezoidal and corrugated) roofs of industrial and commercial buildings, the combination of L feet and hanger bolts has become the perfect solution, perfectly addressing the challenges of fixing and waterproofing corrugated steel sheet roofs. In this solution, the L feet serve as the load-bearing base, while the hanger bolts penetrate the corrugations of the corrugated steel sheet to precisely anchor the roof purlins. Simultaneously, the EPDM rubber, which are compatible with the hanger bolts, fit tightly against the surface of the sheet, forming a double waterproof barrier to eliminate the risk of rainwater penetration without damaging the original roof waterproofing layer.

[Use With Roof Clamp]

In photovoltaic installations on corrugated steel roofs, the combination of L feet and specialized roof clamps is a "dual-advantageous and stable partnership": the roof clamps can precisely engage with the corrugated steel roof crests regardless of the type of wax, forming a strong grip without drilling through the surface. The L feet act as a load-bearing transfer point, connecting the rail at the top and rigidly locking the bottom to the clamps. EPDM rubber fill the gaps in the contact surfaces. This avoids the damage to the roof waterproofing caused by traditional installations and can easily cope with conditions such as high wind pressure and temperature deformation. On large-span factory corrugated steel roofs, this combination saves labor and time while ensuring the long-term stability of the solar mounting system and the safety of the roof.

[Use With Flashing Plate]

In the installation of asphalt shingle roofs, the combination of L feet and the flashing plate perfectly balances structural stability and roof protection: the L feet are fixed to the roof base with self-tapping screws, and the top supports the rail, while the matching flashing plate covers the connection area between the feet and the roof in a "fitted wrap" manner. This not only guides rainwater along the shingle to the roof drainage system, avoiding the risk of water accumulation and seepage, but the EPDM rubber between the flashing plate and the L feet also enhances the friction between the feet and the roof, further improving the mounting system's resistance to displacement. This combination ensures the stability of the photovoltaic installation while adding an extra layer of waterproof protection to the asphalt shingle roof.

Ultimately, the core reason L feet is considered a "universal partner" in rooftop solar installations lies in its flexible compatibility with roof clamps, flashing plate, and hanger bolt, allowing for adjustments based on different roof conditions. Whether it's the non-destructive fixing required for corrugated steel roofs or the need to balance waterproofing and tilting for asphalt shingle roofs, a single compatible set can solve most problems. Without complex processes, it safeguards roof safety and improves installation efficiency; this practical and flexible combination is precisely why it's so popular in distributed solar projects. If you have any needs for solar roof mounting system, please contact Egret Solar for free sample testing and a quote!