Energy-saving roof Kalzip®

Energy-saving roof systems DUOPLUS & DUO

Excellent thermal insulation and soundproofing!


Kalzip energy-saving roof systems are innovative roof solutions that significantly reduce the energy consumption of buildings. Thanks to their high insulation performance and sophisticated technology, they minimise heat loss in winter and ensure a pleasant coolness in summer. The result: lower energy costs, higher thermal insulation and a contribution to CO2-neutral construction. Kalzip energy-saving roof systems are easy to install and are available in a wide range of designs to meet the requirements of any building site. They make it easy for you to confidently fulfil legal requirements, as these variants offer you a virtually thermal bridge-free complete construction system that meets the highest structural and design requirements.

The advantages of the Kalzip energy-saving roof:

  • Virtually free of thermal bridges – resulting in an extremely low heat transfer coefficient
  • High thermal insulation
  • High cost-effectiveness and short assembly times due to prefabricated system components
  • Functional and harmonised system components
  • Excellent sound insulation values up to R’w = 50 dB (A), depending on the roof structure

Roof structure DUOPLUS ON TRAPEZOIDAL STEEL DECK


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Trapezoidal steel deck

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Vapour control layer

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Tread-resistant thermal insulation

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DuoPlus Rotable Clip Rail Type E

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DuoPlus Rotable clip adapter with composite clip

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Soft thermal insulation

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Kalzip profiled sheet

Kalzip Duoplus

on trapezoidal steel deck

1. Trapezoidal steel deck, 2. Vapour control layer, 3. Impact-resistant thermal insulation, 4. DuoPlus Rotable clip rail Typ E, 5. DuoPlus Rotable clip adapter with composite clip, 6. Soft thermal insulation, 7. Kalzip Profiled sheet

Kalzip Duoplus

on concrete ceiling

1. Concrete ceiling, 2. Vapour control layer, 3. Impact-resistant thermal insulation, 4. DuoPlus Rotable clip rail Typ E, 5. DuoPlus Rotable clip adapter with composite clip, 6. Soft thermal insulation, 7. Kalzip Profiled sheet

Roof structure DUOPLUS ON CONCRETE CEILING


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Concrete ceilings construction

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Vapour control layer

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Tread-resistant thermal insulation

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DuoPlus Rotable Clip Rail Type E

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DuoPlus Rotable clip adapter with composite clip

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Soft thermal insulation

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Kalzip profiled sheet

Roof structure DUOPLUS AS TIMBER RAFTER ROOF CONSTRUCTION ON TIMBER FORMWORK


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Formwork made of wood-based material

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Vapour control layer

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Tread-resistant thermal insulation

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DuoPlus Rotable Clip Rail Type E

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DuoPlus Rotable clip adapter with composite clip

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Soft thermal insulation

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Kalzip profiled sheet

Duoplus as timber rafter roof construction

on timber formwork

1. Formwork made of wood-based material, 2. Vapour control layer, 3. Impact-resistant thermal insulation, 4. DuoPlus Rotable clip rail Typ E, 5. DuoPlus Rotable clip adapter with composite clip, 6. Soft thermal insulation, 7. Kalzip Profiled sheet

Kalzip Duo

on trapezoidal steel deck

1. Trapezoidal steel deck, 2. Vapour control layer, 3. Impact-resistant thermal insulation, 4. DuoPlus Rotable clip rail Typ E, 5. DuoPlus Rotable clip adapter with composite clip, 6. Mineral wool insulation felt (compressible), 7. Soft thermal insulation, 8. Kalzip Profiled sheet

Roof structure KALZIP DUO ON TRAPEZOIDAL STEEL DECK


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Concrete ceilings construction

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Vapour control layer

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Tread-resistant thermal insulation

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DuoPlus Rotable Clip Rail Type E

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DuoPlus Rotable clip adapter with composite clip

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Mineral wool insulation felt (compressible)

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Soft thermal insulation

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Kalzip profiled sheet

U-values for different thicknesses of base insulation and insulation felt

* The U-value 0.18 to be achieved is determined as follows: Basic insulation 100 mm + Kalzip E Klipp 100 + insulation felt height 110 mm = 0.177 W/(m² x K)

Basic insulationE20E40E60E80E100E120E140E160E180
100mm0,2860,2480,2190,1970,1770,1620,1500,1380,129
140mm0,2250,2010,1820,1660,1520,1400,1320,1220,115

U-values in W/(m² x K) for the combination of basic insulation (100 mm or 140 mm) and insulation felt according to the selected E-clip types with thermal conductivity level WLS 037 or 035 and for a clip count of 2 clips/m²

VariationBasic insulationInsulating feltCompressed insulation thickness (mm)U-value (normal)U-value * (rated value)
1WLS 024WLS 032100 + 110
140 + 190		0,129
0,084		0,135
0,090
2WLS 037WLS 035100 + 110
140 + 190		0,167
0,107		0,177
0,115
3WLS 040WLS 040100 + 110
140 + 190		0,186
0,119		0,196
0,127

* U-values in W/(m² x K) for the combination of thermal insulation materials with different heat transfer coefficients and insulation thicknesses for a clip count of 2 clips/m²

Ideal thermal insulation
and high sound insulation

The advantages:

  • Variable thermal insulation thicknesses up to 345 mm
  • Use of all E clip types and heights
  • Complete system from a single source
  • For substructures made of steel trapezoidal profiles, concrete, porous concrete and wood

Applications of energy-saving roofs:

  • Public buildings: Kalzip energy saving roof systems are often used in public buildings such as schools, libraries and government buildings to reduce energy costs and environmental impact.
  • Industrial and commercial buildings: The Kalzip energy-saving roof system is ideal for large industrial and commercial buildings such as factories, warehouses and shopping centres.
  • Residential quarters: The roof systems can also be used in residential neighbourhoods to increase energy efficiency and reduce energy consumption.
  • Sports and leisure building: The Kalzip energy-saving roof system is also suitable for sports and leisure buildings such as swimming pools, ice rinks and fitness centres.


Profile widths and profile shapes Product downloads Accessories for roof structures

Example projects for energy-saving roof systems

Be inspired by a selection of our references

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