Thermal insulation

Energy-saving roof

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DUOPLUS & DUO energy-saving roof systems

Excellent thermal insulation and soundproofing!

Kalzip energy-saving roof systems are designed to enhance a building’s energy efficiency by providing effective thermal solutions. By reducing heat loss during winter and limiting heat gain in summer, these systems help lower energy costs. The construction minimizes thermal bridges, contributing to improved overall thermal performance. Kalzip energy-saving roof systems are available in various designs to accommodate different building requirements and are engineered for straightforward installation.

The advantages of the energy-saving roof:

Virtually free of thermal bridges – resulting in an extremely low heat transfer coefficient
Low U Values can be achieved utilizing various insulation products
Reduced installation 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 and insulations. Additional information is available on request.

Being “on request” ensures we provide the correct document version relative to the project timeline – completed, in process or prospective. Contact us

Mensa-Ludwig-Meyn-Gymnasium-Uetersen-04-96

Kalzip Duoplus

ON TRAPEZOIDAL STEEL/ALUMINIUM STRUCTURAL DECK

1. Steel trapezoidal profile, 2. Vapour barrier, 3. Non-slip thermal insulation, 4. DuoPlus rotary clip rail type E, 5. DuoPlus rotary clip adapter with composite clip, 6. Soft thermal insulation, 7. Kalzip profiled sheets

Kalzip Duoplus

ON CONCRETE DECK

1. Concrete ceiling construction, 2. Vapour barrier, 3. Tread-resistant thermal insulation, 4. DuoPlus twist clip rail type E, 5. DuoPlus twist clip adapter with composite clip, 6. Soft thermal insulation, 7. Kalzip profiled sheets

Duoplus as a rafter roof structure

ON TIMBER FORMWORK

1. Wood-based formwork, 2. Vapour barrier, 3. Non-slip thermal insulation, 4. DuoPlus rotary clip rail type E, 5. DuoPlus rotary clip adapter with composite clip, 6. Soft thermal insulation, 7. Kalzip profiled sheetsX

Kalzip Duo

ON STRUCTURAL TRAPEZOIDAL STEEL/ALUMINIUM DECK

1. Steel trapezoidal profile, 2. Vapour barrier, 3. Non-slip thermal insulation, 4. DuoPlus rotary clip rail type E, 5. DuoPlus rotary clip adapter with composite clip, 6. Mineral wool insulation felt (compressible), 7. Soft thermal insulation, 8. Kalzip profiled sheet

Basic insulation	100 MM	140 MM
E20	0,286	0,225
E40	0,248	0,201
E60	0,219	0,182
E80	0,197	0,166
E100	0,177	0,152
E120	0,162	0,140
E140	0,150	0,132
E160	0,138	0,122
E180	0,129	0,115

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

Variante 1	Variante 2	Variante 3
WLS 024 Basic insulation	WLS 037 Basic insulation	WLS 040 Basic insulation
WLS 032 Insulation felt	WLS 035 Insulation felt	WLS 040 Insulation felt
100 + 110 140 + 190 Insulation thicknesses compressed (mm)	100 + 110 140 + 190 Compressed insulation thicknesses (mm)	100 + 110 140 + 190 Compressed insulation thicknesses (mm)
0,129 0,084 U-value (undisturbed)	0,167 0,107 U-value (undisturbed)	0,186 0,119 U-value (undisturbed)
0,135 0,090 U-value (design value)*	0,177 0,115 U-value (design value)*	0,196 0,127 U-value (design value)*

* 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.

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

U-value diagram

* The target U-value of 0.18 is calculated as follows: Basic insulation 100 mm + Kalzip E Clip 100 + insulation felt height 110 mm = 0.177 W/(m² x K)

Basic insulation	100 MM	140 MM
E20	0,286	0,225
E40	0,248	0,201
E60	0,219	0,182
E80	0,197	0,166
E100	0,177	0,152
E120	0,162	0,140
E140	0,150	0,132
E160	0,138	0,122
E180	0,129	0,115

Variante 1	Variante 2	Variante 3
WLS 024 Basic insulation	WLS 037 Basic insulation	WLS 040 Basic insulation
WLS 032 Insulation felt	WLS 035 Insulation felt	WLS 040 Insulation felt
100 + 110 140 + 190 Insulation thicknesses compressed (mm)	100 + 110 140 + 190 Compressed insulation thicknesses (mm)	100 + 110 140 + 190 Compressed insulation thicknesses (mm)
0,129 0,084 U-value (undisturbed)	0,167 0,107 U-value (undisturbed)	0,186 0,119 U-value (undisturbed)
0,135 0,090 U-value (design value)*	0,177 0,115 U-value (design value)*	0,196 0,127 U-value (design value)*

* 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.

Exemplary thermal insulation and high sound insulation

The advantages of the Energy Saving Roof Structure:

Variable thermal insulation thicknesses up to 345 mm
Use of all E clip types and heights
Complete system from a single source
Suitable for substructures made of Steel/Aluminium trapezoidal structural decks, concrete and timber
The following documents are available on request for the Kalzip system
- Declaration of Performance (DoPs)
- EPD’s
- BBA Agrément® Certificates.
- Product Safety & Handling Information
- DIBt Approvals

Being “on request” ensures we provide the correct document version relative to the project timeline – completed, in process or prospective. Contact Us

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.