Warm Mounting Beam
From 2021 onwards, the thermal insulation requirements for partitions in residential buildings will significantly increase. Marbet Warm Mounting Beam is the best way to ensure airtight window installation corresponding to the highest demands of investors. An appropriate quality of window installation allows heat loss to be reduced and significant savings in the building’s maintenance costs to be gained.
Information on the product
The aim of energy-efficient building is to minimise heat loss resulting from thermal bridges and permeability of connections.
Installing wood joinery (windows, doors) with excellent insulation parameters is not enough. Therefore, when installing the joinery, it is recommended to ensure that both windows and balcony doors slightly protrude from the face of the wall (are moved to the building’s outer insulation layer) and that connections of window and door frames with the wall are as airtight as possible.
The inventiveness of the window joinery solution based on segment items from hard polystyrene EPS – the Marbet Warm Mounting Beam (CBM) - relies on extending the jamb by implementing a tight support frame made from these elements, similarly to “building with bricks”. The beams together with the supporting mounting elements, including an under-window beam (BP), inner (PPW) and outer (PSS) bases of the window sills, and other connecting elements available on the construction market, such as adhesives and PU foams, mounting couplings and sealing strips, ensure both airtight and simple installation of windows and doors available on the market.
The system was designed with the participation of experts and practitioners - window assemblers and manufacturers. Installation of the joinery on the basis of elements from the CBM system complies with the ITB guidelines and was approved by the National Technical Assessment.
1) Presentation of CBM Marbet Bausystem:
https://www.youtube.com/watch?v=FTzy3zGLazU
2) Installation of windows using CBM Marbet Bausystem:
https://www.youtube.com/watch?v=dU6h-BSfVx4
3) Product Information - Edition 1/2020:
https://www.marbetbausystem.com/files/Product-Information-Version_1_2020.pdf
4) Description of CBM system with assembly manual and attachments:
https://www.marbetbausystem.com/files/Description-of-the-CBM-System_10.10.2019.pdf
https://www.marbetbausystem.com/files/Attach.-1-CBM-assortments.pdf
https://www.marbetbausystem.com/files/Attach.-2-Elements-that-complement-the-CBM-system.pdf
5) Details on structural solutions using the elements of CBM:
https://www.marbetbausystem.com/files/CBM-Szczegoly-rozwiazan-stolarka-PVC.pdf
https://marbetbausystem.com/files/CBM-Szczegoly-rozwiazan-stolarka-aluminiowa.pdf
https://marbetbausystem.com/files/CBM-Szczegoly-rozwiazan-stolarka-drewniana.pdf
6) Suggested retail prices:
https://www.marbetbausystem.com/files/Cennik-CBM-edycja_2_20.09.2018r.pdf
7) Legal reference documents and research reports available in the “Download” tab.
Benefits
CBM is a thermo-insulating support frame – a new, extended jamb, which permanently connects the frame of the fenestration joinery with the existing wall. In addition, in the case of a two-tier wall, it meets the requirements of NRO (non fire-spreading from the outside).
CBM is a system of steel bearing brackets and elastic complementary materials. It allows the highest classes of parameters to be achieved in terms of strength, airtightness and thermal activity of the constructed connections.
CBM is an assembler-friendly system that allows contractors to offset the unevenness of walls and even out wall curvatures. It contains a number of improvements that facilitate the assembly – just like “building with bricks”.
CBM ensures a warm and airtight installation. Thus, it allows heat loss to be reduced and significant savings in the building’s maintenance costs to be gained – solutions confirmed by ageing tests.
CBM assortments
| Material EPS: Density: ≥ 40 kg/m3; CS(10)300: ≥ 300 kPa λD ≤ 0,032W/mK; *) - dla BP HARD Density: ≥ 60 kg/m3 CS(10)600: ≥ 600 kPa λD ≤ 0,034 W/mK |
List of assortments CBM MARBET | |||
|---|---|---|---|---|
| type of element (width of the jamb) | ||||
| 10 cm | 20 cm | |||
| Length of the CBM beam | 25 cm | 70 cm | 25 cm | 70 cm |
| with bracket external |
CBM.10.25.Z
|
CBM.10.70.Z
|
CBM.20.25.W
|
CBM.20.70.W
|
| Beam with an external bracket |
CBM.10.25.Z
|
CBM.10.70.Z
|
CBM.20.25.Z
|
CBM.20.70.Z
|
| Elements that complement the CBM system | ||||
| Beam without a bracket |
CBM.10.25
|
CBM.10.70
|
CBM.20.25
|
CBM.20.70
|
| Under-sill beam: - BP - BP.HARD *) |
|
|
|
|
| The base of the inner window sill (PPW) |
PPW |
|||
| The base of the outer window sill (PPZ) |
PPZ |
|||
| Nib (W) |
W |
|||
Complementary materials
| I. REGARDING LOAD CAPACITY OF THE SYSTEM | ||
|---|---|---|
| 1.1 |
Frame plugs KPR-FAST K Ø10 with a diameter of 10 mm and length 100 mm with hex head screw and Torx socket (from the offer of KLIMAS Wkręt-Met) according to ETA-12/0272 of 30.03.2017 (**) or equivalent from a different manufacturer (*). https://www.wkret-met.com/flipping/zamocowanie_ramowe_i_ogolne_PL/#34 |
|
| 1.2 |
Hardened screws for mounting jambs, with a countersunk (type WHO) or cylindrical head (type WHOW) (from the offer of KLIMAS Wkręt-Met) according to by ITB CAT-2017/0308 of 12.12.2017 (**) or equivalent from a different manufacturer (*) with screw tear and bending parameters confirmed by a certified laboratory. https://www.wkret-met.com/flipping/wkrety_i_laczniki_do_stolarki_otworowej_PL/40/ https://www.wkret-met.com/aprobaty/ITB-KOT-2017_0308.pdf
|
|
| 1.3 |
Polyurethane adhesives dedicated to polystyrene SOUDATHERM Fasada (from the offer of SOUDAL) meeting the requirements of the National Technical Approval AT-15-7808/2015 (**) - Polyurethane adhesive for fixing EPS or XPS panels SOUDATHERM Fasada/Greinplast KP or equivalent from a different manufacturer (*). https://www.soudal.pl/kleje-profi/item/736-klej-do-styropianu-soudatherm-fasada |
|
|
II. REGARDING AIRTIGHTNESS OF THE SYSTEM:
Connection between the joinery and external walls are sealed with products “Soudal Window System” made in accordance with the National Technical Approval AT-15-9404/2015 - Set of “Soudal Window System” products, ITB edition.III., 2015 - (**) or equivalent from a different manufacturer *) |
||
| 2.1 |
Flexifoam - flexible polyurethane foam compliant with the Technical Approval ITB AT-15-2815/2015-(**) or equivalent from a different manufacturer (*). |
|
| 2.2 |
Vapour-tight tapes compliant with the Technical Approval ITB AT-15-8219/2014 - (**) or equivalent from a different manufacturer (*). https://www.soudal.pl/profi-tasmy-sznury/itemlist/category/178-tasmy-wewn%C4%99trzne-paroszczelne |
|
| 2.3 |
Vapour permeable tapes compliant with the Technical Approval ITB AT-15-8219/2014 - (**) or equivalent from a different manufacturer (*). https://www.soudal.pl/profi-tasmy-sznury/itemlist/category/177-tasmy-zewnetrzne |
|
| 2.4 |
Soudafoil 360H adhesive based on hybrid polymers authorized with Technical Approval ITB AT-15-9404/2015 - (**) or from different manufacturer with adhesion EPS to both vapour permeable and vapour-tight tapes confirmed by a certified laboratory (*). |
|
| III. ADDITIONAL PRODUCTS - OPTIONAL | ||
| 3.1 |
For protecting external connections from the effects of UV radiation by filling the joints-welds: wall - polystyrene CBM elements, between styrofoam CBM elements - outer acrylic such as Marbet TITAN® AKRYL adhesive-sealant http://www.marbetdesign.com/pl/oferta/kleje-i-narzedzia/item/513-klej-uszczelniacztitanakryl.html |
|
| 3.2 |
For installation of PPW and PPZ window sills bases and nib - Installation foam, i.e. Soudal Window& Door compliant with AT-15-2815/2015 - (**) https://www.soudal.pl/pianki-profi/item/417-soudafoam-gun-pianka-pistoletowa |
|
| 3.3 |
If needed to improve the adhesion of PU adhesive to the masonry - priming agent for mineral substrates such as Soudal WBPR 21 https://www.soudal.pl/profi-primery/item/740-deep-primer-wbpr-21p |
|
| 3.4 |
For installation of nib in the target version - expansion sealing tape such as Soudaband https://www.soudal.pl/profi-tasmy-sznury/item/457-tasma-rozprezna-soudaband-acryl |
|
Installation
Option 1 - two-tier wall
The type of CBM beams is selected depending on the type of material from which the exterior wall is made, the assumed depth of injecting the joinery and anticipated loads i.e. with external bracket - symbol CBM...Z or with internal bracket - symbol CBM...W. Below is an example of selection of a CBM beam:
CBM.10.Z Beam - CBM beam with anchor attached to the face of the wall (in the elevation plane) - protrusion of 10 cm
Option 2 - three-tier wall
CBM.20.W Beam - CBM beam with anchor attached in the window opening (in the jamb plane) – protrusion of 20 cm
Assembly sequence for the external jamb according to the CBM system
Outline of mounting the window frame with CBM beams
Mounting to the CBM through a under-sill beam (down) OR mounting directly to the CBM (sides and top)
WARM MOUNTING BEAM - download
Description of the CBM System - Instructions for use along with attachments, Declaration of Performance
WARM MOUNTING BEAM (CBM) MARBET
ARCHITECTURAL SOLUTION DETAIL DRAWINGS
FACTORY PRICE LIST AND LOGISTICS DATA
LEGAL REFERENCE DOCUMENTS
TEST REPORTS - SAFETY AND LOAD-BEARING CAPACITY
TEST REPORT - INSULATION
TEST REPORT - AIRTIGHTNESS
WARM MOUNTING BEAM - archive
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