Kalzip® Systems

Kalzip range of applications
4. Kalzip range of applications
Within the context of the amendment of the
German energy saving regulations (EnEV
2009), the energetic requirements of external
structural components are an important
component of the new energy saving regulations
for improving the sustainable energy
efficiency of buildings in the context of
economic viability and in accordance with
the state of the art.
On the basis of newly-developed materials,
Kalzip system components make a significant
contribution to EnEV-compliant roof
structures.
Application specific system build-up
Kalzip sheets can be used both for ventilated
and non-ventilated roofs as well as
for any roof shape or down to a minimum
pitch of 1.5°.
Furthermore it may be combined with any
kind of support or substructure. The system
depends on the special requirements of
the individual application.
The likely effects of snow, wind, humidity
and weathering are fully taken into account.
Kalzip can easily be configured to provide
the highest levels of thermal insulation.
Thermal insulation requirements can be
easily fulfilled. The thickness of the insulation
can be perfectly adapted to the
individua lrequirements of the building.
In addition, the system offers advanced
detailed solutions for effective interior or
exterior draining of the roof which means
a high degree of reliabilty throughout the
long serviceable life of the roof.
Insulated roof systems are the norm
The main applications for Kalzip roof systems
are insulated roof structures supported by
trapezoidal steel, timber linings, purlins or
concrete elements.
• Chemically neutral, fibrous insulating
materials as specified by e.g. the
German DIN 18 165 are recommended
as suitable thermal insulation. The insulation
is laid into position and is then
compressed to its required final thickness
when are installed the profiled
Kalzip sheets on top. There should be
no cavity between the Kalzip sheets
and the insulation.
• A vapour barrier must be incorporated.
Properly installed it provides the
required air tightness.
• Of course, ventilated roof implementations
are also possible
• The sound reduction values of the
standard roof are subsequently
described. Further improvements
can be achieved by including
additional layers.
• Information on U values can be found in
chapter 7, Kalzip dimensioning tables,
starting from page 47.
Non-ventilated Kalzip roof
on a trapezoidal steel deck
R’w = ~ 35 dB (A)*
Non-ventilated Kalzip roof
on a trapezoidal steel deck
This very economical roof system is used
both for industrial and residential buildings.
In order to make sure that there are no air
cavities under the Kalzip roof skin, compressible
thermal insulation is used. Incorporated
within the roof system the insulation
material is compressed by approx. 20 mm.
The loading on the top skin is not transferred
to the inner skin as an evenly distributed
load but rather at set points via the secret
fixing clips. The design roof load must be
increased by 15 % when dimensioning the
trapezoidal steel sheets. The clips must
be staggered on the inner sheet to make
sure that the load is evenly distributed
across all corrugations of the inner
sheet.
* varies depending on thickness and material qualities
16 Kalzip