Botswana

The TermoDeck construction system, pioneered using Spiroll hollowcore slabs, was used at Botswana’s first science and technology park, the Botswana Innovation Hub. TermoDeck uses the voids in the slabs instead of steel ducts, to exchange air from the supply to the building’s interior.

This can produce savings in energy consumption of between 20 – 50% and a reduction in peak cooling loads of 70 – 90%. Spiroll specified, designed and manufactured a production system to supply 40,000 m² of hollowcore slabs at depths of 250 mm, 300 mm and 340 mm with a non-standard width of 1250 mm, from an outdoor, site-based factory. The package of machinery included a universal extruder with cassettes for the 25 cm and 30 cm slabs and a special modification kit to manufacture the 34 cm slabs.

Spiroll also supplied a crosscut saw, complete with an adaptation to allow simple angle cuts, prestressing equipment and SlabLock lifting clamps for both factory handling and site fixing. The steel casting beds were manufactured locally with design support and a drawing package provided from the UK. Support with commissioning and training was provided by Spiroll engineers throughout the duration of the project.

2 x 90 m production beds
40,000 m² of slabs
250/300/340 mm depths
Local manufacturing support

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Botswana

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