Bi-Fold

Bi-Fold System

A thermally broken system with a 73 mm frame depth, ideal for dividing environments and unifying spaces in both residential and commercial buildings. It offers multiple combinations of up to 14 sashes, allowing for the closure of spans over 16 meters wide. With slim sightlines and hidden rollers, it presents a clean aesthetic when closed. Additionally, the flush threshold facilitates accessibility and smooth transition between interior and exterior spaces.

Technical Details:

Transmittance: Uw ≥ 1,1 (W/m²K)

Air permeability: Class 4

Water tightness: Class 9A

Wind resistance: Class A3

Security test PAS24: Passed

Repeated openings and closings: 50,000 cycles (Main swing door) / 25,000 cycles (Even sashes)

Sightlines: Frame 73 mm, Sash 73 mm

Polyamide Strip Length: Frame 20 mm, Sash 30 mm

Profile Thickness: Door 1.8 mm

Glazing: Max. 45 mm, Min. 25 mm

Maximum sash dimensions: (W) 1200 mm, (H) 3000 mm

Maximum sash weight: 120 Kg

Characteristics:

Bi-fold doors from TermoExpress combine innovative design with excellent functionality and improved space efficiency. With numerous panel configurations to choose from and the option to fold inwards or outwards; Cortizo bi-fold doors create a seamless transition from interior to exterior space.

Design versatility and high performance: These bi-folds provide complete design freedom. The system can include one to seven opening leaves which can fold either inward or outward. The Cortizo bifold can feature a main door principle. With this configuration, the first leaf is used as a standard entrance door without affecting the other folding leaves. The entrance door is fitted with handles on both sides for interior and exterior access.

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Insulated Glazing.

Triple Glazing Package:

Triple glazing is produced similarly to double glazing but uses three sheets of glass, separated by two Warm Edge spacers. The total thickness of a triple glazing unit is typically 42 mm and is mainly installed in profiles with a minimum construction depth of 70 mm.

Standard / Premium configurations possible:

4S + 4F + 4Lowe + Ar + WE
Neutral Glass SN 70/37 + 4F + 6 Lowe + Ar + WE
6mm SKN 176 II ESG, MCM + 4mm F + WE-N + Laminated 44.2 Lowe, MCM, Ar 90% + pressure valve
4.4.2Lowe + 4F + 4.4.2 Lowe + Ar + WE

Types of glass used in insulated glazing:

Float Glass (clear):

Produced by floating a continuous strip of glass using the “float” technology.
Low-E Glass (low emissivity): A clear, transparent glass coated with a metal oxide film. This film allows light to pass through while reducing heat transfer, thus minimizing heat loss.
Solar Control Glass (4 Season): A flat glass with a special transparent coating. It reflects long-wave infrared radiation and a large portion of solar energy.
Reflective Glass: A monolithic, reflective glass obtained by vacuum deposition using magnetron technology (soft-coat, OFFLINE) or pyrolytic technology (hard-coat, ONLINE).
Ornamental Glass: Features a textured surface, available in a wide range of patterns and colors.
Tinted Glass: Created by adding metal oxides during the melting process, this glass absorbs a significant amount of solar energy, preventing excessive heat entry.
Duplex Glass (anti-burglary / laminated): A laminated glass made by bonding two sheets of float, tinted, reflective, or ornamental glass with one or more layers of polyvinyl butyral (PVB) film. It is available in transparent, colored, or opaque options and is known for its rigidity, adhesion, and elasticity. In the event of impact, PVB films hold the glass fragments together.
Tempered Glass: Treated through a special process to improve surface flexibility. When broken, it shatters into very small pieces, reducing the risk of injury.

Warm Edge Spacer:

Also known as the “warm spacer,” it is used to separate the glass panes in triple or double glazing. This spacer has a significantly lower linear thermal transfer compared to traditional aluminum spacers. Made of a thermoplastic composite material, the Warm Edge spacer is a poor thermal conductor, resulting in more efficient edge insulation.