Engineering Library
Maximum Roof Pitch for Solar Panels: Parallel vs Orthogonal Mounting
There is no universal maximum roof pitch for solar racking. Product limits range from 25° for some orthogonal elevated frames to 45°, 60° and…
Engineering Library
Technical articles and engineering references on wind load, corrosion, materials and installation for solar mounting systems.
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Wind Design for Solar in New Zealand: Which Edition, Which Return Period, Which Region
Why a New Zealand solar wind assessment starts with the edition and the compliance pathway: B1/VM1 and the 2011 edition versus the 2021 publication…
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AS/NZS 1170.2:2021 for Solar Mounting: How the Wind Number Is Built
Where an Australian solar wind assessment starts: the AS/NZS 1170.2:2021 wind-region map, the regional wind-speed table and climate multiplier, the site factors that turn…
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Grounding and Bonding in Solar Racking: How the Path Is Formed, and What UL 2703, NEC 690 and IEC 62548 Require
How electrical continuity is actually made in roof and ground mount racking, where the bonding path breaks, and what UL 2703, NEC 690 Part…
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Duplex Coating for C5 Solar Mounting: ZAM Steel Under 240 µm of Paint
The duplex specification we quote for C5 sites: ZAM Zn-Al-Mg steel plus 180 µm of tie coat primer in three coats and 60 µm…
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Wind load calculation for solar mounting, explained
Wind load calculation for solar mounting starts from the site’s design wind speed and ends in member sizing — rails, clamps, feet and foundations.…
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ISO 9223 corrosion classes for solar mounting, C1 to C5
ISO 9223 classifies atmospheric corrosivity from C1 (very low) to C5 (very high), and that class — not habit — should pick the coating…
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Railless metal roof solar installation — fewer parts, faster lifts
Railless metal roof solar installation attaches framed modules directly to the roof skin — no rails, no rail joiners, no L-feet. Solaracks builds this…
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Why Solar Carports Use a Low Tilt Angle (and What You Trade for It)
Solar carports usually sit at 5-15° tilt, below latitude-optimal PV angles. Why the industry chooses the shallow pitch, and what you gain and lose…
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ASCE 7-22 for Solar Mounting: Wind, Snow, Seismic, Tornado, and What Changed for PV
ASCE/SEI 7-22 changes that matter for solar mounting: wind Ch. 26-31 (including §29.4.4 roof PV and new §29.4.5 fixed-tilt ground mount), snow and seismic…
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UK MCS 012 Issue 3.0: A 17-Gate Engineering Review for Solar Mounting Systems
As of 31 July 2026, MCS 012 Issue 3.0 remains the current UK product standard for building-mounted solar PV mounting. A 17-gate engineering checklist:…
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Global Design Wind Speeds for Solar Mounting Systems
An engineering guide to typhoon, hurricane and cyclone classifications, BNBC 2020 wind zones, Nigeria's wind design basis, ASCE 7 design speeds and wind-resistant solar…
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