Integrated PV Bracket System for TPO/PVC Membrane Roofs
1. Overview of TPO/PVC Membrane Roof
As a new type of thermoplastic roofing waterproof membrane, TPO/PVC has a service life of over 25 years. It is characterized by strong environmental adaptability, high joint peel strength, excellent aging resistance, chemical corrosion resistance, superior physical properties, good plasticity, energy conservation and environmental protection, as well as outstanding puncture resistance.
Covering the existing roof structural layer with TPO/PVC membrane can effectively solve the problems of roof aging and water leakage. In recent years, after introducing production technology in China, it has been increasingly widely used in steel structure workshops, concrete roofs, and roofs of large commercial and civil buildings.
2. Challenges in Photovoltaic Installation on TPO/PVC Membrane Roofs
There are many limitations when installing photovoltaic power stations on roofs paved with TPO/PVC membranes, making the installation construction very difficult.
- Piercing the membrane with fasteners to fix brackets to purlins or steel plates leads to potential water leakage if waterproofing at the pierced position is improperly handled.
- Directly adhering brackets to the membrane surface may cause the waterproof membrane at connection points to tear due to excessive wind force.
3. Introduction to Valin New Energy’s Integrated Photovoltaic Bracket System
Valin New Energy has innovatively launched adhesive-type special photovoltaic bracket system for flexible roofs. It is specially designed for the installation of photovoltaic modules and equipment on TPO/PVC membrane roofs and can be widely applied to roofs with TPO/PVC membrane or EPDM material waterproofing on color steel tiles, concrete, wood structures and other types.
4. Core Advantages of the System
4.1 No Drilling, Leakage Prevention
Adopting an integrated membrane-rail bracket design, it is adhesively fixed on the original roof TPO/PVC membrane without drilling holes. This avoids damaging the original roof membrane, eliminates leakage hazards, and addresses owners’ concerns about waterproof risks.
4.2 Stable Load-Bearing Performance
- No additional ballast is required, ensuring linear load distribution and improving roof structural stability.
- The additional load per square meter is only 2KG, meeting the requirements of all concrete, color steel tile and wood structure roofs with load restrictions.
4.3 Convenient Installation and Strong Adaptability
- The integrated membrane-rail design enables high integration of the membrane and bracket rail. It is modular, with one specification suitable for various situations, easy to install, and no on-site processing is needed.
- It is compatible with all types and specifications of photovoltaic modules.
4.4 Reusable and Wind-Resistant
- The integrated bracket rail is detachable, allowing easy removal when replacing the original roof membrane and reuse after installing a new membrane.
- A single bracket can withstand an effective pull force of over 100 kilograms without peeling off from the membrane, ensuring the photovoltaic modules can withstand strong winds under four-point force. For coastal or high-wind areas, pre-reinforcement can be carried out if the membrane’s connection point peel strength is weak.
5. Significance and Value
Valin New Energy’s integrated photovoltaic bracket system for flexible roofs directly addresses the waterproofing and construction difficulties of flexible membrane roofs. It promotes the installation and implementation of photovoltaic projects with highly integrated and modular brackets, injects new vitality and momentum into the development of building-integrated photovoltaics, and helps achieve the dual carbon goals.
