Forster thermfix vario | Transom/mullion facade

Curtain walls with thermal break – In steel and stainless steel

System with attachment profiles for curtain walls with thermal break

Simple, fast, economical

Forster thermfix light makes it possible to mount a sealing system on commercially-available steel and aluminium profiles as well as on wooden sub-structures. The system offers great configuration flexibility to both planner and architect because of the unlimited choice in the sub-structures. The system is characterized by basic and quick processing allowing improved economics.

Combinable with insulated windows and doors of the system Forster unico.

Technical details

Material options

Sub-structures in steel, aluminium, wood,

Forster attachment profiles in steel or aluminium, pressure profiles in aluminium, cover profiles in aluminium or stainless steel

Performance specifications*

(S) sloped glazing

(V) vertical curtain wall

Thermal insulation: Uf-value 1.0–2.2 W/(m2·K) (S)

Thermal insulation: Uf-value 1.1–2.2 W/(m2·K) (V) (depending on the infill thickness) when using a rebate insulator

Tested fire resistant sloped glazing EI30/EI60/E30/E60

Tested based on the product standard EN 13830:

• Reaction to fire of construction products acc. to EN 13501-1: class E (S)(V)• Curtain walls with increased volume of water (3l/min*m2) (S)

• Air permeability 1200 Pa (S) / AE 750 (V)

• Rain impermeability 1200 Pa (S) / R7 600 Pa, dynamic Pmax 1125 Pa (V)

• Resistance to wind load 2400 Pa, safety load 3600 Pa (S) / 3000 Pa (V)

Safety test: CSTB 3228 (50 kg, 2400 mm) 1200 Joule (S)

Impact resistance according to EN 14019: I 5 (internal), E 5 (external) Slope 0–75o (inside), for outside use 10–75o (S)

System properties

Extremely slender visible sections: rafter and transom 50 mm

Individual profile and surface design

Basic and quick processing because of few system components

*Refer to country-specific approvals