Architect and Builder Dec 2017 / Jan 2018 | Page 97

MITEK LIGHT STEEL FRAME BUILDING CATEGORY - JOINT WINNER
Summit Place
Summit Place, Joint winner MiTek Light Steel Frame
Building Category Winner, LSF Building
“The 11 storey
office building has a slick exterior, with varying window
sizes in the elegantly curved façade walls. Several 2 and
3 storey office buildings at Summit Place, Garsfontein,
Pretoria, had been successfully clad with LSF façade
walls, with ETICS external cladding. Accordingly, it was
no surprise when the architect, Boogertman & Partners,
decided to use the same solution on the 11 storey office
block, ‘Building E’, in the same development.
In most of the earlier buildings, the architect specified
slanting, ‘gravity defying’ façade walls. With Building E, he
decided to introduce curved façade walls, made possible
by LSF. Saint-Gobain ETICS was used for the external
cladding, as it is suited to curves, provides a durable
external finish as well as insulating the office building to
reduce the energy required for heating and cooling over
the lifetime of the building.
How does it demonstrate excellence in LSFB? It is
fast to install, and accurate – all of the 700 premade
external windows fitted into the allowed opening
in the wall panels. The low mass of the LSF ETICS
cladding eased logistics and made handling on site a
lot easier, requiring only a small team of artisans to do
the installation. Due to the low waste factor, it has a
small footprint in the building, allowing other trades to
work in tandem.
This project uniquely captures all the benefits of LSFB,
and hence it was selected to be a joint winner in the LSF
Category of Steel Awards 2017.
Summit Place is the first South African high rise office
building where façade walls were constructed of LSF with
ETICS external cladding. The 11 story office building
incorporates 0.8mm LSF steel frames manufactured with
window apertures. 60mm and 90mm thick EPS panels
were used to form horizontal lines between windows and
on the high upstand walls on the roof patio.
Special considerations include fire breaks between
floors, expansion joints levels 5 and 7 in horizontal
application and more than 700 windows in design.
Client: Neotrend
Architect:
Boogertman + Partners
Structural Engineer/Structural Steel Detailer:
HAGE Engineers
Main Contractor: Abel
Steelwork Contractor and Erector / Cladding
Contractor: Ohlhorst Lighweight Building Solutions
LSF Supplier and Detailer:
Clotan Steel
Cladding Manufacturer: St Gobain
Steel Awards
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