Steel Awards 2017 Winner of the Global Roofing Solutions Metal Cladding Category.

The new terminal building of Kasane airport caters for the airport’s growth plan and increases its capacity for international flights. The meandering floor plan called for a roofing profile that could be tapered from ridge to eaves, thereby eliminating the need for unsightly kite flashings which are notoriously difficult to waterproof on flat roofs. Zip-Tek 420 profile solved the problem.

The roof design was especially difficult as every roof sheet used on the curved sections had to be calculated and measured individually as to the required width of the sheet and also to ensure a correct radius for the curved section. The complex geometry of this project is what makes it stand out from other entries in the category.

Judges comment: Dennis White

“With cladding being continuously rolled, the profile is parallel. This building, because of its serpentine shape requires the profile to be fanned. The profile used for this project is a single pan that can be shaped to meet the requirement of curves” 

Type / Purpose of project Airport
Project Category relevance Metal Cladding
Project Location Botswana
Total Square Metres 7050m2
Roofing profiles used Zip-Tek 420
Type of cladding 0.58mm 


Dove Grey

SA content Zip-Tek 420
Other steel items supplied by GRS Botswana Smoke Ventilators – 56 of 

Aluminium Walkways on the roof – 439 metres

Architect AECOM
Structural Engineer AECOM
Quantity Surveyor AECOM
Project Manager AECOM
Main Contractor Stfenuti
Steelwork Contractor Cadcon
Structural Steel Detailer Cadcon
Steel Erector Cadcon
Cladding Manufacturer Global Roofing Solutions
Cladding Supplier Global Roofing Solutions
Cladding Contractor GRS Botswana

If you were a part of this project, and your company details are incorrect or missing – please notify the SAISC so that the error can be corrected.