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housing…
ROBUST
IKHAYA
EEZYBUILT
LEPA
trusses with light weight cladding
(12kg/m²). Insulated ceilings are
always installed as well as conven-
tional windows, doors and services.
This system is Agrément Certified.
LIGHT STEEL FRAME
Light steel frame building consists
of structural wall frames and roof
trusses, manufactured from cold-
formed light gauge galvanised steel
sections.
Exterior cladding consists of a single
skin brick wall (veneer) a weather
resistant board of reinforced plaster,
fixed to the wall frames. In some
cases, cladding consists of prefabri-
cated (modular) panels.
The Hub has a number of ex-
amples of this type of construction
with its various claddings.
STEEL MESH
The Robust system has a concrete
wall appearance in which the fin-
ished state, but is neither formwork
based poured concrete, nor pre-cast
into panels. Robust wall panels are
manufactured from 0.4 mm mild
steel sheeting, which are punched,
expanded and formed into a zig-zag
profile. Panels are erected verti-
cally and stiffened transversely with
2.5 mm wires spot welded to each
face at 200 mm centres. Mortar is
applied to panels either by hand or
usingmechanical packing. Mechani-
cally applied mortar may be applied
wet (pumped) or dry (gunited), with
hand-packed mortar and mechani-
cally applied wet mixes. Both faces
of core are plastered. Basically, it is
a slab which is vertically applied. In
non-corrosive environments plas-
ter will have a 28 day compressive
strength of 10 MPa, however, in
severely corrosive environments
higher characteristic strengths may
be specified.
Where the Robust system is used
for example, in the Southern Coastal
condensation area, insulated ceilings
are installed and exterior walls are
given an additional external finish
of Pratliperl plaster.
The walls must be 130 mm thick,
excluding 13 mm thick additional
plaster on the outside. For the foun-
dation and floor system, conven-
tional cast in situ concrete surface
beds are used with thickened edge
beams and thickening under internal
walls. Similarly, conventional roof
construction and roof coverings
are used. This system is Agrément
Certified.
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