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At Jan Janssens & Company we specialize in the supply and installation
of raised access floors. (R.A.F). Our activity dates back to the late
sixties and we represent Torloc, Tate, Gamma and Unistrut systems.
is a screw down system and provides us with our main form of activity.
This system is widely used to provide a trouble free, fully accessible
R.A.F installation for general office application and is exclusive
to Jan Janssens & Co.
We selected this particular system in 1987, on the back of our experience
with the traditional loose lay or gravity panel systems due to its
superior unique design and performance features. Torloc was also the
first system specifically designed with the screw down function to
arrive in Ireland. Unlike later loose lay systems that were adapted/transformed
with a screw down facility.
The principle differences are:
-Torlock panel is constructed with a unique crimped edge detail, designed
to firmly connect the top and bottom galvanized steel plates. Thus
encapsulating the core elements.
-This combined with the corner screw fix through the floor panel into
the adjustable steel-pedestal understructure results in the equopotential
bond between all components, making the installed floor simple to
earth. Leaving it safe and secure.
-The system requires in general just one earth-clip per 500sq meters
of floor field.
-Additional benefits are as follows:
- Crimped edge prevents delamination of the metal encapsulation.
- Increased loading capacity as it forms a structural beam type
element, with three layers of metal fused together (point load, center
- Reduced thickness/weight, 27mm instead of 32mm providing more
space in services void below. - Panel precision.
The system installed as a whole:
- Eliminates problems such as:
- No lateral movement, does not rely on perimeter support.
- Allows contraction/expansion of raised floor without compromising
- Absolute grid precision.
- Flat and level surface despite being installed on a highly
imperfect concrete sub-floor.
Note: An important feature of the screw down facility
is the action of the screws fixed into the pedestal head, forcing
the pedestal into a plumb position square to the installed floor
surface. Any discrepancy in the sub-floor surface will now be contained
below the pedestal base plate instead of the top, where it would
affect the surface of the installed floor panels. The adhesive used
to fix the supporting pedestal to the sub-floor has a self-leveling
action and will provide a level poa for the pedestal to stand on.
- No lipping between individual floor panels.
- No loose, knocking, floating or jammed panels.
- Total interchangeability between panels.
- No lateral instability or collapse when panels are taken out to
access floor void.
- Increased uniformly distributed load (U.D.L) due to fixed components.
- Increased capability to handle rolling loads.
- Protection of understructure during alterations in floor void.
You will notice from our client base that the Torlock system has
been well received by our client base to date, after installing over
one million sq meters. We are not aware of any problems with any of
The Tate system more or less performs similarly to the Torlock system.
The components are made of heavier gauge steel. The core is made of
lightweight concrete infill. The system is used in special circumstances
with exceptional loading requirements. The system is much heavier
in weight and more expensive to install.
We use the Gamma core panels for computer and equipment room installations,
where screw down panels cannot be used.
The Gamma floor panel is unique because of its extruded aluminium
peripheral edge finish, which is grooved and hydraulically inserted
into the panel edge. This makes it robust and prevents edge delamination.
It can be produced with a variety of different anti-static and finishes.
Unistrut is a solid grid system constructed from unistrut channels
and fittings. It has traditionally been used in power stations and
the likes where there is a requirement for heavy loads, and where
void is packed with services and large power supply cabling.