CAREA products can be installed using two different systems for external thermal insulation, either in existing buildings or in new constructions.
The frameless cladding system (BSO)
Bardage Sans Ossature (BSO) systems are exterior thermal insulation systems covered by Avis Techniques. Frameless cladding can also be called “vêture” or “vêtage”.
BSO elements are installed directly on the supporting structure (whether insulated or not), using mechanical fasteners (through-pegs, lugs, rail insertion, etc.).
Installation is carried out in a single operation.
Load-bearing structures are made of masonry units, solid concrete or timber-framed construction (COB). On this page, we have detailed the various media.
In the case of an insulated load-bearing structure, this insulation is :
or new insulation made from insulation boards with a minimum ACERMI rating (rating defined in the Avis Techniques and varying according to the type of insulation),
or old insulation with thin or thick plaster over insulation.
Highlights:
Direct installation on the building’s load-bearing structure.
No framework attached to the load-bearing wall: an economical solution in terms of supply and installation time (4 to 6 m² per hour). Work possible in all weathers.
In the case of renovation, the BSO can be installed over previous insulation (ITE) covered with thin or thick rendering, or even over a previous veneer.
Details of our systems by type of facing can be found on this page in our Avis Techniques (ATec).
Over-insulation or over-roofing
As part of a renovation project, to reduce carbon footprint and cut energy consumption, the frameless cladding system (BSO) can also be installed over existing plaster (EMI) or previous cladding, without removing the latter: the frameless cladding fastener passes through the plaster or previous cladding (cladding and insulation) to be fixed in the support behind it.
In addition to being more eco-responsible, this system is highly economical: it saves the time required to remove the old cladding or insulation, and avoids the issues of on-site waste management and recycling of the old façade, which is ” recycled in situ “: the old system remains in place under the new façade, retaining its insulating properties.
Schematic diagram of thin plaster over insulation (EMI) installation
The framed cladding system (BAO)
Framed cladding (BAO) is an external thermal insulation (E.T.I.) system, consisting of cladding fixed to a framework, which is itself attached to the supporting wall. Additional insulation is installed between the shell and the cladding skin, and is ventilated by the air gap between the insulation and the back of the slabs.
Over the entire height of the cladding, a ventilated air space of at least 20 mm is left between the rear face of the cladding panels and the insulation.
