Hanger bolts reach through the sheet into the purlin or rafter below, carrying the array on the structure rather than the skin — the option for sandwich panels, thick coverings and re-roofed buildings where sheet fixing alone will not do. EPDM-sealed sleeves close the penetration, and the system carries the highest wind rating in the metal-roof range.
Technical parameters
| Roof types | Sandwich panel, thick sheet, purlin-fixed cases | |
|---|---|---|
| Material | 6005-T5 aluminium, SS304 hanger bolts | |
| Wind speed | Up to 88 m/s | AS/NZS 1170.2 / ASCE 7-22 |
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