THERMOBLOK® TWIN External Inspection 35TH is a thermal insulation monoblock designed to house roller-type sunshades with external inspection, developed for applications characterised by walls of considerable depth. The system is designed for walls with a depth of 350 mm, to which the thickness of the finishes is added, resulting in a total depth of approximately 375 mm for the finished wall. This configuration is particularly suitable for installing windows flush with the internal wall, ensuring continuity of insulation and precise positioning of the window opening. The system comprises a thermally insulated box, side panels and a fourth side panel – perfectly integrated components that help reduce thermal bridges and improve the energy efficiency of the building envelope.
TECHNICAL SPECIFICATIONS:
The TBK TWIN 35TH roller shutter box is made from moulded EPS (sintered expanded polystyrene) with a density of 33 kg/m³, a declared thermal conductivity of λD = 0.040 W/mK and internal reinforcement in electro-welded mesh, a solution that provides greater strength and structural stability, even in deep installations. The roller shutter box compartment has a standard width of 242 mm and is designed to accommodate roller-type sunshades with external inspection from the underside. The system is completed by the external cover, consisting of a fibre-cement and XPS sandwich panel with a total thickness of 25 mm, which guarantees strength, durability and excellent accessibility for inspection. The swing-out configuration, supported by the side brackets, ensures easy inspection of the roller shutter compartment and high resistance to weathering.
The TBK Type 90 thermal insulation side walls, made from Neopor EPS with a load-bearing structure of plywood, incorporate the extruded aluminium guide for the roller shutter and the specific technical profiles for skimming, ensuring continuity of insulation, precision of installation and perfect integration with external thermal insulation systems.
The TBK Type 80 thermal insulation side panel, made from high-density XPS, completes the window assembly by eliminating the lower thermal bridge. The special recessed design facilitates assembly with the side jambs and is designed to accommodate the window sill. The system is supplied with a dedicated thermal break in XPS for windows and in Purenit® for French windows.
The system can be supplemented with numerous optional extras, including provision for a recessed fly screen via a specialised aluminium profile and the TBK skim-coat system, comprising external wall insulation mortar, a plaster-bearing mesh and technical PVC profiles, to ensure professional installation and a finish that blends seamlessly with the façade.
THERMAL PERFORMANCE
Thermal transmittance of the roller shutter box (Usb): 0.48 W/(m²K) in accordance with UNI EN ISO 10077-2.
Linear thermal transmittance of the side panel (Ψ): 0.000 W/(mK) without external insulation and 0.017 W/(mK) with external insulation, in accordance with UNI EN ISO 10211.
Linear thermal transmittance of the fourth side (Ψ): 0.050 W/(mK) without external insulation and 0.18 W/(mK) with external insulation, in accordance with UNI EN ISO 10211.
THERMOBLOK® is the professional range of prefabricated thermal insulation monoblocks for window openings, designed and patented by TBK to offer a comprehensive, efficient and bespoke solution for window and door installation.
Drawing on experience gained in the window opening sector, the THERMOBLOK® range allows all the functional elements of the window opening – roller shutter box, side jambs, fourth side and accessories – to be integrated into a single system, ensuring continuous insulation and effectively reducing thermal bridges.
THERMOBLOK® is designed and manufactured to measure, according to the building’s characteristics, the wall’s construction and the specific requirements of the building site. This bespoke design ensures high performance, simplified installation and seamless integration with the building system.
The range includes various configurations to meet a wide variety of design requirements, whilst maintaining the same high quality standards in terms of thermal insulation, durability, construction precision and ease of installation.
Why choose THERMOBLOK®
A system designed and patented by TBK.
Fully bespoke monoblocks.
Reduction of thermal bridges around the window opening.
Integration of the roller shutter box, side panels, fourth side and accessories into a single system.
Suitable for both new builds and energy-efficiency refurbishment projects.
Solutions that can be customised to meet the architectural and performance requirements of the project.
High-quality construction and ease of installation.
THERMOBLOK® is TBK’s solution for creating a high-performance window opening, combining energy efficiency, build quality and maximum design freedom.
Further info from manufacturer on THERMOBLOK® – TWIN External Inspection TBK