The load-bearing ISOPRO® 120 thermal insulation element has an insulating body 120 mm thick. It provides thermal separation at the transition between internal and external concrete components and at the same time guarantees a frictional connection across the insulation joint. Thanks to the shear force bars anchored in the thrust bearing, the element can simply be inserted from above between the external component and the storey ceiling for easier installation. ISOPRO® 120 is available with different load-bearing levels and element heights. Use our web application ISOCHECK to find out which DIN 4108 (supplement 2) category your chosen thermal insulation element achieves in your building project in just a few steps.
ISOPRO® 120 Concrete-Concrete

ISOPRO® IP 120 M
Thermally insulated cantilever slab connection for cantilevered reinforced concrete components with 120 mm insulating body

ISOPRO® IP 120 C
Thermally insulated slab connection for external corner balcony slabs with 120 mm insulating body

ISOPRO® IP 120 Q
Thermally insulated slab connection for transmitting shear forces in supported reinforced concrete components with 120 mm insulating body

ISOPRO® IP 120 QZ
Thermally insulated slab connection for tension-free transmission of shear forces without a pressure component and with 120 mm insulating body

ISOPRO® IP 120 QS
Thermally insulated slab connection for punctual transmission of shear forces in supported reinforced concrete components with 120 mm insulating body

ISOPRO® IP 120 QSZ
Thermally insulated slab connection for tension-free connection of recessed balconies and loggias with 120 mm insulating body

ISOPRO® IP 120 QQ
Thermally insulated slab connection for transmitting positive and negative shear forces with uplifting loads and 120 mm insulating body

ISOPRO® IP 120 QQS
Thermally insulated slab connection for punctual transmission of positive and negative shear forces with uplifting loads

ISOPRO® IP 120 QQZ
Thermally insulated slab connection for unrestricted transmission of positive and negative shear forces without compression components and with 120 mm insulating body

ISOPRO® IP 120 D
Thermally insulated slab connection for continuous reinforced concrete slabs with 120 mm insulating body

ISOPRO® IP 120 A
Thermally insulated connection for attached parapets and balustrades with 120 mm insulating body

ISOPRO® IP 120 F
Thermally insulated connection for front parapets with 120 mm insulating body

ISOPRO® IP 120 O
Thermally insulated connection for reinforced concrete brackets supporting masonry or precast elements with 120 mm insulating body

ISOPRO® IP 120 W
Thermally insulated connection for cantilevered reinforced concrete walls with 120 mm insulating body

ISOPRO® IP 120 Z ISO
Intermediate insulation for supplementing the insulation joint without a structural function
Benefits
- Optimised materials and cross-sections for good thermal insulation
- Variety of different types and designs for all common applications
- Easy processing on construction sites due to thrust bearing
- Preferred elements kept in stock for fast delivery
- Custom adaptation of the product range in close cooperation with the Application Technology department for unusual applications
- ISODESIGN software makes is easy to design the connections
Technical details
- National technical approval according to Z-15.7-331 and Z-15.7-243, DIBt Berlin
- 120 mm insulating body: made of NEOPOR® with λ = 0.031 W/mK
- Reinforcement bars: made of B500B reinforcing steel
- Thrust bearing: made of high-performance special concrete
- Fireproof panels: Fibre-cement panels of building material class A1 with fire-resistance layer
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ISOPRO® 120 Thermal insulation elements - Technical information
Technical Information

ISOPRO® 120 - Installation instructions
Installation instruction for balcony insulation elements ISOPRO® 120 M, ISOPRO® 120 M P, ISOPRO® 120 Q, ISOPRO® 120 QQ

Type Approval ISOPRO® 120 Thermal Insulation Element
Test report No. 4117/6 confirms the suitability of ISOPRO® 120 thermal insulation elements in accordance with the applicable building regulations.
PDF (3.80 MB)
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Declaration of Performance ISOPRO®
Declaration of Performance No. DOP_ISOPRO_0526_EN

Sustainability Product Declaration for ISOPRO®
Date of issue: 21 July 2025
PDF (71.92 KB)
DownloadDownloadPlanner software ISODESIGN
Software for designing our thermal insulation elements ISOPRO and ISOPRO 120, version 1.4.4
ZIP (53.31 MB)
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