HH Robertson

Profiled steel sheeting

10½ Corrugated
The traditional corrugated profile offers versatility, e.g. agricultural structures, light industrial and commercial buildings, mass housing and even up-market housing. Provides functional and economic benefits, i.e. hard and strong, relatively light, easy to handle, provides an attractive square metre coverage per unit mass. Ratio - allows for lighter and less expensive structural roof construction.

Nu-Rib 762
Effectively bridges the gap between corrugated and box ribbed profiles. Nu-Rib's deeper flutes allow for a superior water carrying capacity than the corrugated profile but still yields a 10% greater cover width than IBR 686.

IBR 686
Since HH Robertson's introduction of IBR in 1958, its popularity has made it a generic term. The trapezoidal flute design still offers the optimum strength mass and load span characteristics compared to alternative profiles.

Superseal 500
This no-hole standing seam roof profile is specifically designed for slopes as low as 1º. The interlocking, concealed clip fastening system ensures a weatherproof roof. Unrestricted, extra long sheet lengths are possible by rollforming Superseal 500 on site with HH Robertson's mobile mill.

Deklad 550
This profile offers on-site rollforming and ease of handling on site. HH Robertson offers a sliding clip for thermal movement to match IBR 686 and Nu-Rib 762.