Online Quotation

Most of our products are pre assembled and have low installation difficulty.
If customers encounter problems during the installation process, they can refer to the accompanying installation and usage instructions, or watch online installation videos to complete the installation. If you still encounter difficulties, our support team will immediately provide assistance - please contact us by phone, Whatsapp, or Teams.
If necessary, we can provide local installation services

Concrete roof, Bitumen roof, TPO/PVC/EVA/EPDM roof, Lightweight precast ALC panel roof
Type: V-B-EW
Enables East-West installation of PV modules.
The V-B-EW system is constructed from premium-grade materials, including aluminum and Magnelis‑coated steel, delivering exceptional durability and superior corrosion resistance. Its modular architecture enables effortless system expansion and seamless adaptation to diverse roof dimensions and layouts. Featuring pre‑assembled components, the system ensures rapid and efficient installation, significantly reducing both time and overall project costs.
V-B-EW is compatible with every type of commercial roofing, and can be used on mechanically attached, fully adhered and ballasted roof systems.

Concrete roof, Bitumen roof, TPO/PVC/EVA/EPDM roof, Lightweight precast ALC panel roof
Type: V-B-S
Enables South Tilt installation of PV modules.
The V-B-S system is constructed from premium-grade materials, including aluminum and Magnelis‑coated steel, delivering exceptional durability and superior corrosion resistance. Its modular architecture enables effortless system expansion and seamless adaptation to diverse roof dimensions and layouts. Featuring pre‑assembled components, the system ensures rapid and efficient installation, significantly reducing both time and overall project costs.
V-B-S is compatible with every type of commercial roofing, and can be used on mechanically attached, fully adhered and ballasted roof systems.

Flexible Membrane Roof Solar Mounting Solution
Valin’s patented RailBase™ integrated membrane-rail system delivers a 100% waterproof, non-penetrating PV mounting solution for TPO/PVC/EVA membrane roofs. Hot-air welded directly to the roof membrane — no drilling, no ballast, no leaks.

Four Models:
R-250, R-500, R-1000，R-1840

Suitable for all types and specifications of solar panels, with special optimization for lightweight flexible panels.​

Suitable for TPO & PVC single-ply membrane flat roof (0°~5° slope)

No fasteners penetrate TPO/PVC membrane, eliminate leakage risks and preserve the original roof waterproof warranty.

No concrete ballast required, extremely low additional roof load. Ideal for retrofit commercial buildings with limited load-bearing capacity.

Penetrated racks have through metal studs so thermal bridging cannot be fully removed. Our system has no through-roof metal components, fundamentally eliminates through thermal bridging and reduces condensation risk in cold seasons.

Long rails combined with wide bases distribute load linearly, avoiding concentrated stress which may cause insulation depression and membrane tearing.

Products passed SGS wind uplift tests. We can provide structural calculation reports complying with ASCE 7 (US) / Eurocode based on local wind & snow loads for review by structural engineers.

Bases can be partially cut for future roof maintenance or membrane replacement, easy to dismantle without large-scale roof damage. The base can be reused.

Main profile: AL6005-T5 anodized aluminum; fasteners: SUS304 stainless steel; base material chemically compatible with TPO & PVC.

Recommended slope 0°~5°. Special anti-sliding calculation is required if slope exceeds 5°.

Compatible with mainstream mono & double-glass solar modules、Flexible components, lightweight components, available for south tilt or east-west horizontal layout.

The base is linearly adhered to the roll material over a large area, with no hard sharp corners or local compression in the middle; There are TPO/PVC gaskets at both ends as padding. The substrate is chemically compatible with TPU/PVC and will not wear out the roofing membrane during normal use.

Yes. We can issue project specific structural reports after receiving roof drawing, local wind & snow load data and module specifications.

Complete set of integrated base Railbase, photovoltaic module clamp, stainless steel fasteners; Additional auxiliary materials such as Cable Guide、Grounding Lug

Main product: V-NP series of hot welded, non load, non penetration flexible roof photovoltaic brackets, RailBase ™ R-250 and RailBase ™ R-500

Standard quotation is valid for 30 days. Prices are subject to change if raw material costs fluctuate sharply.

The quotation is our standard factory price. Unit price can be optimized for larger orders or consolidated shipments.

1）Mechanically Penetrated System

Through fasteners pierce membrane, insulation and roof deck. Risk of leakage and potential void roof warranty. Continuous metal studs create unavoidable thermal bridging, which can only be reduced by thermal break sleeves instead of fully eliminated. Complicated flashing work required for each penetration.

2）Ballasted Mounting System

Rely on concrete ballast for wind resistance with no penetration. Disadvantage: significant extra dead load on roof, not suitable for buildings with limited load-bearing capacity. Long term friction may damage roof membrane.

3）Ballast-Free Zero-Penetrating System

Bases thermally welded to membrane, no penetration, no ballast. Ultra light additional load with linear load distribution. Fundamentally eliminate through-metal thermal bridging. Roof membrane integrity preserved to maintain original roof warranty.

Standard production lead time: 7–15 working days. Lead time for bulk orders to be confirmed separately.

No strict MOQ. Small orders are acceptable, while unit cost will be relatively higher.

Air freight: can arrive globally within a week
Sea freight: shipped from Shanghai Port, takes about 30 days to Hamburg Port, 28 days to Rotterdam, and 28 days to Los Angeles
Delivery time: 15 working days after confirming the order and receiving the deposit

Yes, we can ship to major ports worldwide. FOB, CFR, CIF trade terms are available.

Samples are available. Sample cost and freight shall be borne by buyer. Sample fee can be discussed for refund once formal bulk order confirmed.

Using cardboard packaging+corrugated paper+plastic film; Suitable for container shipping and air transportation. Additional wooden crates for air freight.

We arrange sea shipment to destination port. For door-to-door inland delivery, you may appoint your local customs broker. We can provide full set customs documents.

Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin. Please inform us in advance if extra documents required.

The warranty period for Railbase is 15 years, and the free warranty period is 5 years. The warranty does not cover damage caused by improper installation, natural disasters, or roof displacement.

Please take photos immediately once goods arrive. Shortage or damage caused by factory packaging & production will be re-supplied free of charge. Damage during sea transit can be claimed via cargo insurance with freight forwarder.

Standard installation drawings and manual will be provided after order confirmation. Custom layout drawings available for special projects.

We welcome regional exclusive distributor inquiries. We can offer region protection, price support and full technical documentation.

On-site technical support can be arranged. All travel, visa and labor costs shall be borne by buyer. Schedule needs advance coordination.

OEM service is available, subject to agreed order volume.

Certificate of Origin can be issued. Please advise certificate type if you need preferential tariff treatment under free trade agreements.

Type: V-NP-S
Building on the V-NP-F model, we add front and rear columns as well as diagonal braces to the integrated base. This design maintains the PV panels at a 10° south-facing tilt, which effectively boosts power generation while reducing dust accumulation on the panel surfaces.
It adopts the same hot-melt welding process as the original roof construction, without drilling holes or ballasting.
This effectively eliminates potential water leakage risks and ensures the long-term safety of the entire PV system.
After the integrated Membrane-Rail base is welded onto the roof, the solar panel is directly fastened to the base with clamps.
Suitable for all types and specifications of solar panels.
V-NP-S is compatible with every type of commercial roofing, and can be used on mechanically attached, fully adhered and ballasted roof systems.

Type: V-NP-EW
Building on the V-NP-F model, we add angle-adjusting components to the integrated base, maintaining the PV modules at a 10° east-west tilt. This design not only significantly enhances wind resistance but also ensures stable power output throughout the generation period.
It adopts the same hot-melt welding process as the original roof construction, without drilling holes or ballasting.
This effectively eliminates potential water leakage risks and ensures the long-term safety of the entire PV system.
After the integrated Membrane-Rail base is welded onto the roof, the solar panel is directly fastened to the base with clamps.
Suitable for all types and specifications of solar panels.
V-NP-EW is compatible with every type of commercial roofing, and can be used on mechanically attached, fully adhered and ballasted roof systems.

Type: V-NP-F
V-NP-F solar bracket system specifically designed for TPO/PVC/EVA membrane roofs. It adopts the same hot-melt welding process as the original roof construction, without drilling holes or ballasting.
This effectively eliminates potential water leakage risks and ensures the long-term safety of the entire PV system.
After the integrated Membrane-Rail base is welded onto the roof, the solar panel is directly fastened to the base with clamps.
Suitable for all types and specifications of solar panels.
V-NP-F is compatible with every type of commercial roofing, and can be used on mechanically attached, fully adhered and ballasted roof systems.

Type: V-NP-FP
Tailored specifically for lightweight flexible panels, this design accommodates the installation of flexible panels with lengths ranging from 1000mm to 2500mm. By extending the base and increasing its quantity, we provide robust bottom support for flexible panels, eliminating the risk of cell microcracks caused by panel sagging.
It adopts the same hot-melt welding process as the original roof construction, without drilling holes or ballasting.
This effectively eliminates potential water leakage risks and ensures the long-term safety of the entire PV system.
After the integrated Membrane-Rail base is welded onto the roof, the solar panel is directly fastened to the base with clamps.
Suitable for all types and specifications of solar panels.
V-NP-FP is designed for compatibility with all types of commercial roofs and is suitable for mechanically attached, fully adhered, and ballasted roof systems.

The RailBase™ system has been tested by SGS — the world's leading inspection, verification, testing and certification company.

SGS Test Results — Key Findings
•Pull-out Resistance: 4000 N — the welded base-to-membrane bond exceeds the failure load of the membrane material itself. In all test cases, the membrane tore before the weld failed.
•Shear Load Capacity: Exceeds 2500 N per base unit at ambient temperature (23°C).
•Elevated Temperature Performance: No significant reduction in bond strength at 80°C (typical roof surface temperature on a summer day).
•Cyclic Loading: 10,000-cycle fatigue test — zero degradation in weld integrity.

Technical datasheet, SGS test report, installation manual, and CAD drawings available on request

Download:

https://en.valinenergy.com/wp-content/uploads/2026/05/Valin-RailBase%E2%84%A2-Technical-White-Paper.pdf

The whole system adopts thermally welded bases without any fasteners penetrating TPO/PVC membrane. No penetration leakage risk, roof waterproofing layer remains intact, and the original roof warranty can be maintained. Conventional penetrated racks damage the membrane and may void roof warranty directly.

Wind resistance achieved without concrete ballast, bringing minimal extra dead load to the roof. Perfect for retrofits of aged commercial buildings with limited bearing capacity and avoids expensive structural reinforcement work.

Mechanically penetrated racks rely on through-metal studs and inevitably create thermal bridging, which can only be mitigated instead of fully eliminated. Our system has no metal components running through the roof assembly, removing through thermal bridging fundamentally and lowering condensation risks in cold weather.

Long rails matched with wide welded bases distribute load evenly along the rail, eliminating point concentrated stress. It prevents insulation depression, local membrane tearing and long-term roof ponding.

Installed by hot-air welding without roof drilling. Bases can be partially cut and removed for future roof maintenance or membrane replacement, without permanent large-scale roof damage.

Products passed wind uplift mechanical tests. Project-specific structural calculation reports complying with ASCE 7 (US) or Eurocode can be provided for permit submission and structural engineer review.

Main profiles adopt 6005-T5 anodized aluminum alloy; all fasteners are SUS304 stainless steel with excellent anti-corrosion performance for long-term outdoor service.

We have CE certification and SGS wind uplift test reports. Project-specific structural calculation reports complying with ASCE 7 can be issued for permit approval. UL2703 third-party testing can be discussed separately regarding cost and timeline.

Aluminum solar roof mounting structure (RailBase ballast-free zero-penetrating thermally welded PV mounting system, Model R-250/R-500). Main load-bearing components: 6005-T5 aluminum alloy, equipped with TPO/PVC membrane as functional accessory. Aluminum components and TPO/PVC membrane are pre-assembled by self-tapping screws. Processed by cutting, drilling and bolting, designed for installing solar modules on TPO/PVC single-ply membrane roof. Supplied as complete structural kit, solar modules excluded. No plastic components within the assembly.

The Railbase Mounting bases are thermally welded onto roof membrane,Zero-Penetration, Zero-Leakage Risk. No-Ballast, Rapid Heat-Welding

We support long-term distributor cooperation. Discount depends on annual purchasing volume. Please advise your estimated yearly demand, we will offer a cooperation package. We also welcome dealers to develop our warehouses overseas

Integrated design: Eliminate the need for additional solar brackets, reducing extra costs.​

Factory-prefabricated delivery: No-perforation or ballasting of the membrane, panels can be quickly installed after hot welding, saving on-site construction time. Increase installation efficiency by 40%.

Low weight & high strength: Wind loads up to 4000N tested by SGS​.

High applicability: Suitable for all types and specifications of solar panels, with special optimization for lightweight flexible panels.​

Customizable: Customizable installation angles available to meet south tilt or east-west installation requirements.