RACA Journal October 2021 | Page 30

28
Project

TOWERS MAIN :

REJUVENATED AND AWARD-WINNING

By Pieter de Bod ( Pr . Eng .) LEED BD + C
This project is a breath of fresh air for the city of Johannesburg .
Pieter de Bod | WSP
Pieter de Bod | WSP

Johannesburg ’ s old ABSA Towers building has not only received an impressive modern makeover but has also received multiple awards and a warm welcome by the city , the ABSA staff , and the apartment ’ s residents .

Not only does this skyscraper boast a new vibrant vortex pattern façade that can be seen from miles away as one of Johannesburg tallest buildings , but a new shell and core airconditioning , heating and ventilation system was installed .
The exposed concrete beams and 360-degree strip windows of a typical floor at the start of the project .
1 2
1 and 2 : The old outside air intake louvres on level 15 .
This landmark mixed-use redevelopment further received two SAPOA ( South African Property Owners Association ) Property Development Awards for Innovative Excellence in 2020 .
INTRODUCTION WSP were appointed as the MEPF ( Mechanical , Electrical , Plumbing and Fire ) consultants on this significant project . To be part of the redevelopment of this 1970s building made it an interesting but very challenging project . I remember very clearly when I visited the Towers Main building for the first time in the spring of 2018 . The project team was gathered in the lift lobby on the ground floor , and we made our way to the roof of the building . I was impressed by the strip windows that provided an unforgettable and breath-taking 360-degree vista from the upper floors . I also remember the good condition of exposed concrete structures and all the down-stand beams .
There are so many factors to consider when recommending a suitable shell and core air-conditioning system to the development team . Retrofitting airconditioning systems in old buildings like this is very challenging and requires careful consideration and planning .
WSP strives to implement mechanical systems that render buildings more environmentally friendly and resource-efficient throughout its entire life-cycle , starting with design and followed by construction , operation , maintenance , renovation and eventually demolition .
The Towers main building is located on the corner of Main Street and Troye Street , Johannesburg , and comprises the following :
• Three basement levels ( each between 3150m 2 and 4000m 2 )
• Retail , reception spaces and a coffee shop , public art gallery , crèche , and piazza on ground floor
• Multiple A-grade office floors on the first nine floors

28

RACA Journal I October 2021 www . hvacronline . co . za