PRODUCTS
Anti-condensation
coating
flexible building.
sustainable thinking.
PRODUCTS
Anti-condensation coating
Profiled aluminium
Panels with
GRAFO-THERM coating
for roof and facade
structures
In certain room climates, roofs or profiled
Disadvantages caused by condensate:
Aluform AT Anti-condensation coating –
aluminium panels without thermal insula-
❚ Corrosion of the steel supporting
Provides an effective protection against
tion (ventilated roofs) will be subject to
structure and fouling of or formation
the hazard of condensation depending on
of mould on the timber supporting
outside temperatures. This condensation
structure
can be attributed to the fact that the
warmer and water vapourcontaining air
of the building interior makes contact with
❚ Damages to materials stored and
machines
❚ Damages in agriculture when buildings
dripping condensate
Aluform AT elements are profiled aluminium
panels coated with GRAFO-THERM on one
side (Table 1).
Aluform AT will absorb condensation water
the profiled panels and cools down on
are used for grain storage and animal
and prevent it from dripping. Profiled alu-
their cold surface. The conditions found to
housing
minium panels coated with GRAFO-THERM
occur with ventilated roofs may also be
encountered on the facades of buildings.
❚ Penetration of moisture into insulating
materials
❚ Annoyance to passengers in covered
010 ■
will due to the generous specific surface
texture dry at a faster rate than untreated
panels.
areas, e.g. platform roofs in railway
Surfaces coated with Aluform AT are given
stations.
a bright texture similar to a plaster finish.
Aluform AT – multifunctional coating of Aluform panels
to absorb condensation water
Tab. 1: Condensation water absorption rate
to saturation depending on type of coat
Description
Tab. 2: Versions of colour coats
Water absorption capacity g/m2
after 8 hrs
at saturation
AT 06
370
500
AT 09
504
675
Outside
Inside
colour coatings:
Polyester or PVdF
grey
GRAFO THERM
without colours:
grey
stucco-mill finish or smooth-mill finish GRAFO-THERM
Aluform AT is more than just a
Use of Aluform AT panels
Storage of Aluform AT panels
protection against condensation water.
Aluform panels can be universally used
The Aluform AT panels should be stored at
for roofs and walls witch are subject to
a roofed place.
❚ Fire protection:
condensation according to the time of the
building material class A 2 according
day, e.g.
Range of Aluform AT panels offered
to DIN 4102
❚ sheds without thermal insulation
Trapezoidal and sinusoidal panels are
❚ double-layer ventilated thermal roofs as
offered in two GRAFO-THERM standard
❚ Noise protection, noise absorption:
Profiled panels with AT coating can ab-
weather protection
coats (Table 1). The available lengths are
sorb noise at a rate of 5 – 30% depending
❚ agricultural buildings
on the thickness of the coat and the fre-
❚ indoor swimming pools, sports halls
quency of the sound waves encountered
❚ platform roofs
The colours of the coats can be seen
and can thus reduce the noise level in the
❚ canopies
in Table 2. In addition to the standard
building inside.
❚ grandstands
program, other dimensions, coats or
❚ garages
colours can be supplied on request.
effect in case of hail-storm, heavy rainfall
Aluform AT will not replace neither an
Connecting elements, sealing materials
or wind. Loss factor, d komb ≈ 0,02
adequate thermal insulation layer nor an
and bent flashings are available for the
appropriate ventilation of the bottom or
installation of the panels. Flashings that
back sides.
are exposed to the inside and outside
❚ Noise insulation:
from 2m to 20m.
The AT coating will provide a deadening
❚ Thermal protection:
AT coating will give a heat-insulating
effect that reduces the condensation
rate; thermal conductance 0.085 W/mK.
❚ Corrosion protection:
climate of a building are possible to be
Installation of Aluform AT panels
Great care should be taken not to damage
Indirect effect by preventing condensate
the coated aluminium panels during instal-
from dripping on the supporting
lation. Especially, the panels should not be
structure.
in contact with the purlins when pushing
them in place. Possible damages to the
coat may be repaired by means of a brush.
A drying time of approx. 8 hours must
be allowed when dried in the open air
(at about 20 °C). Make sure to install the
panels in the specified direction.
coated with GRAFO-THERM on one side.
Phone: +49 (0) 35723 99-0
Dresdener Straße 15
Fax:
D-02994 Bernsdorf
Email: info@aluform.de
© www.mkwa.de
Aluform System GmbH & Co. KG
+49 (0) 35723 99-401
www.aluform.de
❚ Overlapping lengths for cross joints
Ordering/description of
Aluform AT profiled panels
❚ Desired texture and paint coat of outside
(Instruction of Installation, Info No. 713)
surface of profiled panels (Table 2)
❚ Position for longitudinal joints and eaves
❚ Type of GRAFO-THERM coat for inside
The following must be stated for ordering:
side depending on direction of installa
❚ Required quantity, type of profile and
tion according to Figure 1 for roofs and
dimensions of profiled aluminium panels
❚ Fitting position of profiled panels
surface (Table 1)
❚ Required fitting elements; description
Figure 2 for walls. The maximum
of the area to be coated in the case of
possible dimension ´a´ of the non-coated
bent flashings (sketch)
(positive = P, negative = N) and side
end faces is 300 mm. The visible side
to be coated with GRAFOTHERM
should be protected against spray dust
by protective film.
Ordering example:
Description:
Trapezoidal aluminium profile 45/150
Aluform 45/150 - 0.7 - AT 06
Metal thickness t = 0.7 mm
outside, stucco-mill finish, P
AT (anti-condensation) coating
inside, AT grey, N
Positive side: Outside, stucco-mill finish
Negative side: Inside, grey AT 06
Figure 1:
Figure 2:
GRAFO-THERM coating of Aluform trapezoidal profile 45/150,
GRAFO-THERM coating of Aluform trapezoidal profile 45/150,
negative side. Installed as roof profile. The joint and eaves areas
positive side. Installed as wall profile. The joint and plinth areas
are not coated.
are not coated.
Installation from left to right
Installation from right to left
Installation from right to left
Longitudinal joint area (short extended side lap)
Installation from left to right
Longitudinal joint area
(short extended side lap)
positive side = painted side
a
a
End face
without AT coating
Long extended side lap
without AT coating
negative side
with AT coating
End face
without AT coating
Long extended side lap
without AT coating
a
a
Cross joint or plinth area
010 ■
Cross joint or plinth area