Consequently, the architects specified Safal Steel’s Colorplus® products and also Zincal® for an independent section of the roof where the lockdowns associated with the pandemic limited the overall availability of certain steel products.
“Whilst the combination of Colorplus® and Zincal® on the roof was not ideal, we nonetheless achieved an aesthetically pleasing look. Due to the roof form the distinction between the two sections is not that evident. Colorplus® AZ150 in colour Seaspray from the Safal Steel palette, together with the Zincal® AZ150 were both formed into a concealed fix profile for the roof” says Thornhill.
Called Novotexi 440, this profile was expertly manufactured by Macsteel in Boksburg, its name being derived from the Latin for “new cover” and in 440mm effective cover width. Novotexi 440 was developed to accommodate high winds as a result of greenhouse gases and global warming, according to the Macsteel website.
“For the cladding, we used a combination of Safal Steel’s Colorplus® range colors, Rainstorm and Thunderstorm in an IBR profile, which created a dramatic colour contrast with the lush green environment of the KwaSizabantu mission/Emseni farming region” explains Thornhill. The specification of the roofing material was AZ150 TCT 0.53, and the site was 50km from the KZN coastline. Such conditions indicate that AZ150 is well-suited to the purpose.
The Aquelle plant’s overall roof size is 23 860 m2, which also covers office/administration space having a floor area of 1 336 m2
Inside, the roof is suspended via conventional steel trusses with castellated beams and insulation is provided by 75 mm Factorylite. The roofing assembly is supported by conventional concrete/steel columns.
Mentioning the service and product from Safal Steel and its supply partners, Thornhill adds that the Safal Steel products have been used on other projects he has been involved in, to great success, and was “competitively priced”.
The Aquelle facility contains a bottling plant for its well-known mineral water products, drawn from a nearby spring. The facility has three filling lines and also power can be supplied from a generator room of 200m2, says Thornhill.
On sections of the roof a PV array helps offset dependence on the national power grid and is well positioned over the Zincal® and Colorplus® sections of the roof, facing the optimal position for the sun.