37mm profile sections are designed to interlock to give maximum security when closed. Small profiles have improved rolling characteristics allowing smaller head space requirement, the 37mm profile only requires as little as 150mm headroom. Every secure-roll shutter comes complete with reinforced bottom rail section giving added security when closed.
When using a manual counterbalance operating system the locking section will be incorporated in a specially designed extruded base rail which has recessed locking bars giving added security against forced entry. |