Metal-Roof Railless Mount SR-R2 “Surf”

The railless system facilitates the rapid mounting of framed PV module on square or trapezoidal metal sheet roofs which width is equal to or greater than 25mm with minimum thickness 0.8mm. A base mounting clip is 100mm or 140mm long, therefore easy to carry and attach to almost all trapezoidal sandwich roofs. The EPDM sheet is in the package to seal the screw against the metal sheet. Railless mounting system allow for easy logistics, cost-effective warehousing and easy mounting.

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Only three components are required to install the modules directly to the roof, 70mm height is for better ventilation. The EPDM pad is glued in place before shipment.
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Rail bracket also include 3pcs SUS 410, ST6.3*25 self tapping screws which torque is 12-13NM. Self tapping screws tap into metal sheet roof only.
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If the rail bracket is vertical, the self tapping screw would be on the metal sheet.
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If the rail bracket is horizontal, the self tapping screw would be on the beam and the length is optional as customers’ demand.
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RUL procduct & packaging.
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Pictures at sight from our customers.

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Benefits

  1. 3 component types install the whole array — railless direct-attach cuts parts, freight and lift time.
  2. 100 or 140 mm clips fit trapezoidal sheets from 25 mm rib width and 0.8 mm gauge — 3 screws per bracket at 12–13 N·m.
  3. 70 mm bracket height keeps an air gap for module cooling; 6005-T5 and stainless, 12-year warranty.

Technical parameters

Metal-Roof Railless Mount SR-R2 “Surf” — indicative parameters. Final values follow project engineering.
ParameterValue
ColorNatural , Powder Coated
Install SiteFlat Roof, Pitched Roof , Open Terrain
Module OrientationLandscape , Portrait
Wind speedUp to 60 m/s
Tilt AngleFixed
MaterialAnodized Aluminum 6005 T5, Stainless Steel 304
Calculation basis: AS/NZS 1170.2 / ASCE 7-22Stamped design & quote: 24 hWarranty: 12 yearsDesign life: 25+ years

Frequently asked questions

How much install labour does it save?

Railless direct-attach cuts part count and lift time - fewer crane hours per MW.

Will mounting void the roof warranty?

Attachments install without penetration where specified, keeping the roof warranty intact.

Which module frames fit?

Clamp ranges for 30-35 mm frames are documented per SKU - no on-site clamp swaps.

How do you size the structure for wind?

Site wind speed drives member sizing to AS/NZS 1170.2 / ASCE 7-22, and every design ships stamped - no under-engineered arrays.

Get an engineered mounting quote for your project.

Share drawings, module layout, site location, wind load, snow load and corrosion environment. Solaracks will recommend the system, material, layout and packing approach.

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