The steel profiles have a wall thickness of only 1.8 mm so are easy to work with and at the same time, offer maximum protection against wilful destruction. The on-top door closer is integrated into the frame and located on the rotation axis of the round leaf-profile. By using this special construction (figure 1), the closing mechanism does not require any bars or arms, which could be damaged by vandals, leading to the whole door being vulnerable to attacks.

figure 1 - RP-hermetic 50 Security steel door system

Security doors are very often installed as outwards opening, so that exterior door hinges are needed. In this position, the hinges are exposed and open to attack. With RP-hermetic 50 security doors, this danger is eliminated by the use of a round leaf profile, making hinges redundant. Another advantage of the round shape is finger protection (figure 2).

figure 2 - Security steel door, Vandalism-protection

The advantages of RP-hermetic 50 plug-in glazing bead system:

Unlike most profile systems equipped with easy to lever clip-on glazing beads, the RP system offers maximum protection using a self-securing support of beads and the easy additional fitting of only a few security pins (figure 3). Because of these security pins, it wasn't possible to lever out the glazing beads using a crow bar on test elements.

Figure 3 - RP-plug-in glazing bead system, self-securing 2 sided support glazing beads

The RP-hermetic 50 system has been tested for smoke-protection up to an element size of 2800 x 3000 mm. It is best suited for high usage door areas as well as external doors, where the advantages of steel come into their own.