Our engineering team: Eurocode 1 calculation in every quote.
From your postcode we identify your real climate zone — snow and wind — using the national annex of your country (BS EN in the UK, NF EN in France, DIN EN in Germany, NTC in Italy, CTE in Spain). The structure is sized for your specific site, not a national average. Drawings, parts list and installation manual delivered in English.
Approximate snow zones across Sunrak markets · see each national annex for exact values
Calculation isn't guessed — it's justified.
A poorly sized PV structure faces three risks: collapse under snow load, lift-off in storms, and slow fatigue deformation. All three can invalidate your insurance. The engineering team is what makes the difference between a long-life installation and a pile of profiles.
EN 1991-1-3 — Snow
Characteristic snow load sk by altitude and zone, local accumulation, exposure factor.
EN 1991-1-4 — Wind
Reference velocity vb,0, site factors, orography, peak pressure per roof zone.
EN 1993 — Steel
Galvanised steel section resistance, deflection checks, stability, connections.
EN 1999 — Aluminium
Aluminium 6063-T5 / 6082-T6, alu-specific verifications, creep, PV panel fatigue.
Entrust us with your study — quote in 48 business hours.
Our engineering team sizes your project for your actual climate zone, your panels and your site constraints.