C Fold line

extremly large opening options

Thermal insulation Uf

from 1,1 (W/m²K)

Air tightness window

(EN 12207) CLASE 4


(EN 12208) CLASE 9A

Wind tightness

(EN 12210) CLASE A3

C fold line system with Thermal Break specially designed to cover large openings. Its design is distinguished by its versatility. It has a great range of configuration options of up to 14 panels. Capability of outside and inside opening. ADA compliant, allows sill to insert be set in pavement or subfloor, leaving the threshold completely hidden. Additionally, the rollers and wheels may be hidden in close position.

• silent, smooth operation
• open in and open out options
• different types of glazing strips
• multitude of color options, dual color options
• different thresholds options

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  • Key features
  • Technical Specifications
  • Performance
  1. high resistance to water & air infiltration
  2. thermal insulation Uw from 0.2
  3. double or triple pane glazing
  4. dual color available
  5. powder coated + seaside paint available
  6. multiple sill profiles
  7. multiple opening/folding options
  8. textured or smooth finish


Maximum glazing thickness
1 3/4 in

Opening possibilities

1 to 14 sashes
Glazing range


2 4/5 inch


2 4/5 inch

Size & Weight Limitations

Maximum size (H×W)

H to 118

W to 47  1/5

Max weight lbs264
Air Permeability
(EN 12207) CLASE 4
(EN 12208) CLASE 9A
Wind load resistance
(EN 12210) CLASE A3
Thermal insulation (Uf)
from 1,1 (W/m²K)
Security Test
(PAS 24): Passed

*Reference test : Balcony 4,00 x 3,00 m. 2 sashes.

**Reference test : 4,00 x 3,00 m. 1 sash + 1 fixed


We offer high variety of Aluminum windows and doors. Every order is custom made according to our customers requirements. Our modern construction solutions make it possible to create extremely large g lazed areas and improve building design and interior décor not available with most of our competitors, for example 25’ W x 9’H lift and slide doors. We have almost an unlimited potential in terms of both colors and their different shades for our aluminium components. Another key benefit for our products are the components utilizing multi point locking. This is achieved through a link gear running around the window sash, which operates pins which in turn lock into keepers located around the perimeter of the sash opening. Depending on the size of sash used, there can be up to twelve locking points on any one sash. In doors a six-point lock is used. This comprises of four compression roller pins, one latch and one dead bolt. All the locks on any one sash are operated by one lever and secured by one key. Further this creates insulating advantage as an even sash seal is achieved as well as enhanced security. Pleae note we can perform the installation or assit our customer in an installation consult capacity.


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Eco Windows USA provides top quality window and door solutions in Brass, Steel, Aluminum, Wood and PVC. With a capacity of producing over 5000 windows per day our systems are highly customizable, allowing for almost unlimited possibilities to arrange elevations and building interiors for both residential and commercial use. Our brand of window and door carpentry is produced by combining precisely selected materials, premium German hardware, latest technologies and long-term experience in production. We provide CAD design support as well as complete installation services.