VEROSOL FACTS AND FIGURES
| All
Verosol
sun
shading
products,
pleated
blinds,
verticals,
roller
blinds,
and
curtains,
are
made
with
fabrics
that
have
a
highly
reflective
layer
of
aluminum
on
the
window
facing
side.
This
aluminum
layer
gives
the
fabrics
their
excellent
sun
shading
and
insulating
properties,
and
makes
Verosol
products
specifically
suitable
for
application
in
the
working
environment.
Here
they
contribute
to
a
better
interior
climate,
and
good
lighting
conditions.
The independent institute for scientific research TNO in Delft, has tested the Verosol materials in order to establish their sun shading characteristics. The figures for all Verosol fabrics, have been measured by TNO according to EN410 and ISO 9050, and copies of the relevant TNO reports can be made available upon request. Calculations of the figures for Verosol materials in combination with various types of glazing have been made with the WIS software, and are also based upon EN410/ISO 9050 standards. |
 |
| Fact 1: |
| Verosol metallized fabrics reflect a large portion of incoming sunlight. |
|
Quality |
Solar Reflection |
Light Reflection |
| 818 FR |
37 % |
36 % |
| 816 FR |
52 % |
50 % |
| 812 FR |
71 % |
66 % |
| 875 FR |
74 % |
74 % |
| Solar
reflection
is
the
percentage
of
the
total
solar
radiation
that
is
reflected
by
the
metallized
side
of
Verosol
material. Light reflection is the percentage of visible light (wavelength between 400 - 700 nm) that is reflected by the metallized side of Verosol material. |
| Fact 2: |
| Verosol metallized fabrics have low light transmission values, which largely determines their contribution to lighting circumstances in the working environment. Depending on the orientation of the facade, light transmission values between 4 and 20% are recommended for computer workstations, in order to achieve the desirable light intensity level of 500 - 1500 Lux on the computer workstation. Such values can be achieved using the appropriate Verosol fabric for the specific circumstances. |
|
Quality |
Direct Solar Transmission |
Direct Light Transmission |
| 818 FR |
41 % |
41 % |
| 816 FR |
20 % |
22 % |
| 812 FR |
9 % |
9 % |
| 875 FR |
5 % |
5 % |
| Solar
transmission
is
the
percentage
of
the
total
solar
radiation
that
is
transmitted
into
a
room
through
Verosol
material. Light transmission is the percentage of visible light (wavelength 400 - 700 nm) that is transmitted into a room through the Verosol material. |
|
|
| Fact 3: |
| Verosol products, as part of a total window system, diminish the fraction of the total solar energy that is transmitted through such window system, thus contributing to thermal comfort. |
|
Quality |
Solar Factor (Verosol + clear double glass) |
| Glass | 0,77 |
| 818 FR |
0,51 |
| 816 FR |
0,41 |
| 812 FR |
0,34 |
| 875 FR |
0,30 |
| Solar Factor (SF) is the ratio between the solar energy that is transmitted and emitted into the interior, and the total incident solar energy. |
|
|
| Fact 4: |
| Verosol products diminish the amount of energy(warmth) that is lost through the window as a result of a temperature difference between interior and exterior, when the outside temperature is lower (winter circumstances mostly). In other words Verosol has insulating properties. |
|
Quality |
U-value (Verosol +single glass) |
U-value (Verosol+double glass) |
| Glass |
5,9 W/(m2)K |
2,9 W/(m2)K |
| 818 FR |
4,6 W/(m2)K |
2,5 W/(m2)K |
| 816 FR |
4,0 W/(m2)K |
2,4 W/(m2)K |
| 812 FR |
4,0 W/(m2)K |
2,4 W/(m2)K |
| 875 FR |
4,0 W/(m2)K |
2,4 W/(m2)K |
| The
U-value
is
the
indicator
for
the
heat
transfer
through
a
window
system
(incl.
Verosol)
caused
by
a
temperature
difference
between
the
interior
and
the
exterior
temperature.
The
calculation
is
based
upon
a
temperature
difference
of
15
degrees
Centigrade,
and
an
inside
temperature
of
20
degrees
centigrade,
in
a
winter
solution.
The U-value for standard, clear-float single glass is 5,9 W/(m2)K and for clear-float double glass the U-value is 2.9 W/(m2)K. |
|
|
| Fact 5: |
| The
metallization
of
Verosol
products
gives
them
not
only
excellent
sun
shading
properties,
it
also
enables
the
use
transparent
and
semi
transparent
fabrics
that
allow
a
good
visual
contact
to
the
world
outside.
The part of the total light transmission that determines whether or not a fabric offers a view through, is the specular transmission. Logically, in the more transparent types of fabric, this part is more important. The view offered by Verosol materials is illustrated by the photos on this page.
|
 |
 |
| Verosol
textile
818
FR |
Verosol
textile
816
FR |
 |
 |
| Verosol
textile
812
FR |
Verosol
textile
875
FR |
| Specular transmission is the fraction of visible light that is transmitted through the fabric without being re-directed. The determines the quality of the view through that is offered by the fabric. |
FABRIC COMPARISON CHARTS
|
Quality |
Fiber Content |
Metallized |
Weight in g/m2 |
Flame Retardent DIN 4102 B1 |
Colorfastness to ISO 105-B02 color/metal |
Aluminum adhesion |
Anti -static |
Formaldehyd Free |
PVC Free |
|
818FR |
100% Trevira |
Yes |
50 |
Yes |
>5 8 |
Yes |
Yes |
Yes |
Yes |
|
816FR |
100% Trevira |
Yes |
72 |
Yes |
>5 8 |
Yes |
Yes |
Yes |
Yes |
|
812FR |
100% Trevira |
Yes |
95 |
Yes |
>5 8 |
Yes |
Yes |
Yes |
Yes |
|
875FR |
100% Trevira |
Yes |
106 |
Yes |
>5 8 |
Yes |
Yes |
Yes |
Yes |
|
316 |
100% Polyester |
Yes |
74 |
No |
>5 8 |
Yes |
Yes |
Yes |
Yes |
|
312 |
100% Polyester |
Yes |
92 |
No |
>5 8 |
Yes |
Yes |
Yes |
Yes |
|
976 |
100% Polyester |
Yes |
124 |
No |
>5 8 |
Yes |
Yes |
Yes |
Yes |
|
979 |
100% Polyester |
Yes |
130 |
No |
>5 8 |
Yes |
Yes |
Yes |
Yes |
|
981 |
100% Polyester |
Yes |
225 |
No |
>5 8 |
Yes |
Yes |
Yes |
Yes |
|
Solar properties of the fabrics, measured at 45 degrees incidence |
||||||
|
Transmission |
Reflection |
Absorption |
||||
|
Quality |
Solar |
Light |
Solar |
Light |
Solar |
Light |
|
818 FR |
41% |
41% |
37% |
36% |
22% |
23% |
|
816 FR |
20% |
22% |
52% |
50% |
28% |
28% |
|
812 FR |
9% |
9% |
71% |
66% |
20% |
25% |
|
875 FR |
5% |
5% |
74% |
74% |
21% |
21% |
|
316 |
20% |
22% |
52% |
50% |
28% |
28% |
|
312 |
6% |
7% |
62% |
59% |
31% |
34% |
|
976 |
5% |
4% |
69% |
64% |
26% |
31% |
|
979 |
7% |
4% |
54% |
50% |
39% |
46% |
|
981 |
0% |
0% |
64% |
60% |
36% |
40% |