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interior bifold french doors with glass
interior bifold french doors with glass

The 80 Series aluminum glass folding door is built for interior passages that demand flexibility, daylight, and thermal comfort. Panels fold and stack neatly, connecting rooms or opening entire walls. Double-tempered argon-filled glass and slim 80mm profiles deliver a clean look with strong insulating performance. Configurable layouts, colors, and hardware make it a straightforward fit for residential, hospitality, and commercial projects.

  • Double tempered glass (5+20A+5) with argon fill keeps temperatures stable and controls condensation.
  • 80mm 6063-T5 aluminum frames with 2.0mm wall thickness for long-term structural strength.
  • Folding arrangements: single-side, double-side, center-split — adaptable to any opening.
  • Factory-backed customization of dimensions, finishes, glass and hardware, with global project support.
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derhi window and door performance certifications for extreme weather

Product Details

The 80 Series uses 6063-T5 aluminum extrusions with a consistent 2.0mm wall thickness and an 80mm frame depth. Each leaf holds two 5mm tempered glass panes spaced 20mm apart, filled with argon and separated by a PVDF aluminum warm-edge spacer. Continuous EPDM gaskets around the sash and an internal-external gluing process lock the unit tightly, limiting air exchange and helping the door achieve a U-Factor of 0.28 and 35 dB sound reduction. The argon fill also reduces fogging and thermal bridging across the glass.

Rather than sliding or swinging, the panels fold and stack to one or both sides, maximizing the clear opening. CMECH hinges and a concealed bottom roller track handle the weight of multi-panel assemblies smoothly. This makes the system suitable for interior links — a living-room-to-balcony connection, a restaurant’s flexible dining area, or a hotel suite terrace. Glass upgrades such as Low-E, tinted, or laminated panes add solar control or impact resistance; folding direction and panel count are built to project specifications.

Product Features

  • Argon-filled double glazing: The 5+20A+5 configuration cuts heat transfer and keeps interior glass surfaces dry, helping maintain comfortable room temperatures.

  • Sturdy aluminum frame: 6063-T5 alloy with 2.0mm profiles stays stable on panels up to 850mm wide, even under frequent daily use.

  • Multi-panel flexibility: Leaves fold and stack left, right, or center — works for narrow passages or wide openings in residential and commercial plans.

  • Verified weather resistance: Factory-tested wind pressure tolerance of 4.5 KPa and water tightness of 350 Pa help protect indoor comfort in semi-exposed locations.

  • Easy, quiet operation: CMECH hinges and bottom rollers make opening and closing feel light, even with heavy double-glazed panels.

  • Glass upgrade path: Standard tempered clear; add Low-E, tinted, laminated, or triple glazing to adjust thermal, acoustic, or safety performance.

customizable styles for folding door manufacturer by derchi

Customizable Styles

  • Glass options: Double tempered with argon fill is standard. Low-E, reflective, tinted, laminated, or triple glazing available. All insulated units include warm-edge spacers.

  • Frame finishes: Stock colors: Caramel Coffee, Deep Coffee, Black Crystal Stone, Quartz Gray. Custom RAL or anodized finishes on request.

  • Panel dimensions: Single leaf width 500–850 mm, height 1900–3800 mm. Multiple panels combine to cover large openings; total width is project-engineered.

  • Folding layout: Choose single-side, double-side, or center-split folding. Hinge swings and traffic flow are confirmed at order review.

  • Hardware color: CMECH handles and hinges supplied in black or silver to coordinate with the selected frame finish.

Hardware Accessories

  • CMECH lever handle: Ergonomic grip in black or silver; its mounting plate prevents loosening over time, even in high-traffic spaces.

  • CMECH hinge: Heavy-duty hinges connect each leaf, keeping panels aligned and folding quietly.

  • Specialized locking point: Multi-point engagement at head and sill locks panels securely, improving both security and air tightness.

  • Bottom track & rollers: Concealed rollers run on a low-profile floor track, carrying panel weight while allowing easy stacking.

  • EPDM seal & mesh screen: Continuous perimeter gaskets seal edges; an optional folding mesh screen fits in the same track for insect protection.

Basic Parameters

Performance Item

Available Information

Buyer Notes

Thermal Insulation

U-Factor 0.28 (full door or glass center, unit to verify)

Confirm if value is for whole door or glass center. Request NFRC report for energy code compliance.

Wind Pressure Resistance

4.5 KPa (test standard to confirm)

Verify that 4.5 KPa is design pressure, not ultimate. Check standard e.g. EN 12210.

Water Tightness

350 Pa (test method to confirm)

Ask for test method (e.g., EN 12208) and whether it meets project's water penetration limits.

Air Tightness

1.8 m³/(m·h) (unit to be verified)

Verify unit and test standard; typical unit is per linear meter of joint. Request the full test report.

Sound Insulation

35 dB (glass or assembly, lab or field)

Check if Rw (lab rating) or DnTw (field). Confirm frequency range and if value is for complete door.

Product Specifications

Product Name

80 Series Aluminum Glass Folding Door

Product Type

Aluminum glass folding door

Frame Material

6063-T5 aluminum; 2.0mm wall thickness

Frame Width

80mm

Glass Standard

5mm tempered + 20A argon + 5mm tempered; PVDF spacer

Hardware

CMECH handles, hinges, locking point; bottom rollers

Panel Size Range

W 500–850mm; H 1900–3800mm per panel; multi-panel configurable

Opening Styles

Single-side, double-side, center-split folding; panel count as per project

Glass Options

Low-E, laminated, tinted, reflective, insulated double/triple, bullet-proof

Color Options

Caramel Coffee, Deep Coffee, Black Crystal Stone, Quartz Gray; custom RAL available

Certifications

CE, NFRC, AS2047; glass SGCC/IGCC available

Packaging

Export packaging in multiple grades (47,70,75,100 Pack); details confirmed with order

Warranty

10 years on frame and hardware (glass, finish, labor terms to be finalized in contract)

Notes

All performance values in parameter table; test standards and certificates on request; installation service in select countries (USA, Canada, Australia) subject to project scope.

Advantages

  • Factory-direct manufacturing from extrusion to assembly helps maintain consistent quality and met design specifications, reducing lead-time surprises.

  • Argon-filled double glazing combined with a thermal break achieves a U-Factor of 0.28, aiding projects in meeting energy targets.

  • Custom panel dimensions fit a wide range of openings — widths 500–850mm per leaf, heights up to 3800mm, and multiple panels cover spans of several meters.

  • Multiple export packaging grades protect glass and finishes during transit, simplifying logistics for international orders.

  • CE, NFRC, and AS2047 documentation supports specification in different markets and speeds approval for architects and contractors.

Application Scenarios

  • Apartment: In compact apartments, folding panels open balconies to living areas, letting in daylight and air while easily closing to maintain separate rooms.

  • Home office: Create a quiet workspace without building walls; the double glazing reduces household noise, and panels fold away when you want the room open.

  • Hotel: From poolside lounges to spa suites, these doors connect interior comfort with covered terraces, giving guests flexible indoor-outdoor flow.

  • Office building: Swap fixed meeting room walls for operable glass partitions. The 80mm frames handle frequent daily use and keep a clean look.

  • Covered outdoor: While intended for interior use, the door can work under deep eaves or loggias. Confirm wind load and finish durability for semi-exposed spots.

  • Residential building: As a living-to-garden partition, custom panel configurations tackle wide spans and high ceilings, pulling daylight deep into the home.

  • Exterior threshold: In sunrooms or glass vestibules, the door acts as a transition to a protected exterior. Proper flashing and drainage must be detailed by designers.

  • Villa: Multi-panel setups open entire walls to courtyards or pools, blending great rooms with outdoor spaces and maximizing natural light year-round.

FAQ

What is this product?

An aluminum glass folding door system with double tempered argon-filled glass and CMECH hardware. Panels fold and stack to one or both sides, opening interior spaces.

Where can it be used?

Primarily for interior use — living rooms, dining areas, home offices, hotel suites. It may be considered for covered outdoor areas if protected from direct weather.

Can it be customized?

Yes. Glass type, frame color, panel dimensions, and folding layout are all configurable. Custom RAL colors and upgrades like Low-E or laminated glass are available — consult our team.

What information is needed for a quote?

Provide the opening width/height, preferred glass, number of panels, folding direction, color, and project location. A sketch helps our engineers prepare an accurate proposal.

Are these suitable for B2B projects?

Yes. The 80 Series serves contract and specification markets, supporting bulk orders, custom designs, international packaging, and complete certification packages.

What technical documents are available?

Standard CAD drawings, performance test reports (upon request), and installation manuals are available. Certification documents for CE, NFRC, AS2047 are also supplied.

What should I confirm before ordering?

Confirm exact glass specification, frame color, opening dimensions, and required certifications. Also verify site conditions: floor flatness, structural support, and exposure level.

What certifications, packaging, and shipping details are offered?

Certifications include CE, NFRC, AS2047; glass has SGCC/IGCC. Export packaging grades and container loading are available. Installation service in select countries — confirm during quotation.

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