Engineering

Engineering resource — Corrosion Protection Guide (REV. 2026)

How we specify corrosion protection for C1–CX environments: aluminium anodizing classes (ISO 7599 / QUALANOD), hot-dip galvanizing thickness per ISO 1461:2022, ISO 12944-5:2019 paint and duplex systems, and fastener coating routes (HDG / thermal-diffusion / A2 / A4) — with procurement-ready specification wording. 23 pages, 36 primary sources.

Download the guide (PDF, 0.9 MB)

Prefer to read online first? See How to specify corrosion protection for solar mounting (C1–CX).

01

Wind & snow load calculation

Rail spans, section sizes and fixing density are derived from your site data — not taken from catalog defaults. The mounting is sized for the loads your site actually sees, so the structure is neither under-designed nor over-priced.

  • Inputs: location, building height, roof type or soil class, module size, layout
  • Wind and snow loads applied per project against AS/NZS 1170.2 / ASCE 7-22 (as applicable to your market)
  • Output: span tables, fixing layout and section sizing for your array
  • Structural calculation summary available on request for permitting
02

Corrosion & material selection

Material choice follows the site environment and design life — coastal, industrial and high-humidity sites are specified differently. Dissimilar-metal contact points are isolated so the system does not corrode from the inside.

  • Structural aluminum (AL6005-T5, anodized) for rails and rooftop components
  • Stainless steel (SUS304) fasteners as standard
  • Hot-dip galvanized steel for ground and carport structures, coating matched to environment
  • EPDM / isolation pads at aluminum-steel contact points
03

Drawing review before production

No project goes to cutting before the drawing set is confirmed. You review and approve layout drawings and the bill of materials first — dimensional mistakes are caught on paper, not on your site.

  • Layout drawing and BOM issued for your confirmation before production starts
  • Site-specific details (penetrations, rail splices, grounding path) resolved at drawing stage
  • Revisions tracked, so the shipped system matches the approved drawing set
04

QC documentation

Quality control is recorded, not just performed. Dimension, coating and torque checks are logged per production batch, and each shipment can be traced back to its inspection records.

  • Incoming material checks against mill certificates
  • In-process dimension and coating-thickness checks per batch
  • Pre-shipment inspection report available per order
  • 12-year warranty backed by traceable production records
05

Project-based packing & labels

Packing is planned per project, not per SKU. Components are grouped and labeled the way your installers will use them, so material handling on site does not become the bottleneck.

  • Packing list checked against the approved BOM before dispatch
  • Part labels and carton grouping follow the installation sequence
  • Load plan and container photos shared before shipment

What you receive with an order

  • Approved layout drawings and bill of materials
  • Installation manual for your system type
  • Structural calculation summary on request
  • QC / pre-shipment inspection report
  • Project packing list with labeled cartons
  • 12-year warranty documentation

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