Description
In the closed linear ceiling system, each solid wooden slat overlaps the next. This produces a solid wood appearance through-and-through, but is less suitable for spaces with acoustic requirements. It is also possible to apply varying slat widths to one unit size. The whole fixture is then located at the back of the wooden parts.
Solid wood
Derako works exclusively with solid wood. Each type of wood has it´s own natural characteristics such as colour, grain, structure, knots and size tolerance.
Derako system advantages
- Environmentally friendly. Wood is the only building material that is 100% CO2 neutral and totally recyclable.
- The systems guarantee fast and simple assembly.
- Technical support. Projects are technically supported and developed.
- High acoustic values.
- Treated to be fire retardant according to EN13964.
- Using certified and preserved materials.
- Budget flexible and because of modular delivery very suitable for prefab building.
- Comprehensive warranty
Read more about the application and durability advantages in the tabs of this product item. Also, you can consult the menu item ´Visitor type´ in the top right hand corner.
Specifications
Dimensions
The slats can be produced in a minimum size of 96 mm to a maximum 185 mm wide and the slat thickness is a minimum of 16 mm.
Application

Interior ceiling
All versions of the Derako solid wood closed linear system are suitable for use as an interior ceiling. The closed linear system is suspended from a specially developed carrier system of galvanized steel rails with clips. This rail system is completely invisible. Because of a wide choice of types of wood, rail grid sizes, slat sizes and finishes there are a number of possibilities for the appearance of the ceiling. The Derako advisers will be pleased to inform you about the possibilities.
Exterior ceiling
The solid wood closed linear system is not suitable for use outside because of the ventilation limitations. This is of great importance when using solid wood outside.
Curved ceiling
The solid wood closed linear system can, to a limited extent, be used in a curved or arched shape. The Derako advisers will be pleased to inform you about the possibilities.
Finish / installation
The wooden slats can have a planed, fine-sawn or rough-sawn surface finish. Depending on the request, the right type of finish can be selected in consultation with the Derako consultants.

Fire retardant treatment
Fire retardance is an important element for any wood application. To be able to comply with fire safety regulations, Derako systems are treated, if necessary, so that they are fire retardant. This is done by means of the vacuum and pressure method, whereby the wood is impregnated with a fire retardant substance.
With these treatments Derako makes sure that the slats and panels, used as a coating/finishing material meet the European standard EN13964. The treatment process is performed according to KOMO guidelines and is periodically inspected by the SKH so that the required CE marking can be employed.

Finish
The wooden slats may have a planed, fine-sawn and rough-sawn surface finish. Derako solid wood ceiling systems are finished as standard with high-quality varnish to protect the wood against moisture, dust and dirt. What is involved is a non-film-forming varnish that penetrates deep into the wood. Alongside the standard transparent varnish, there is also a wide range of colours available. The finish adds a nice touch to the wood and the natural tones and structures of the wood are preserved. For each application, the right system coating is determined that is necessary to protect the wood.

Colour Wash varnishes – Lively SOHO colours and sparkling Metallic Wood
If you want to do something special with coloured varnishes, Derako has the Colour Wash varnishes that will give the inside of your building that unique touch. The varnish finish series is split into two colour lines known as SOHO and Metallic Wood and is used on American ash. The SOHO colour line stands for vivid colours and with a Metallic Wood varnish finish, you can create wooden ceilings and walls with a sparkling metal finish. You can decide how the varnishes are used within the design. Using inserted coloured panels, striking accents can be created in a ceiling or wall or the whole thing can be given a uniform colourful finish. Read more about Colour Wash varnishes.

Construction and installation
As far as the assembly is concerned, the closed linear system meets both the designer's and installer's demands. For the specially developed carrier system the rails and clips are put together in the correct structural grid lines and dimensions, in the factory. The carrier system can be project specifically coded to contribute to a fast and simple assembly on site. With this method of attachment the natural behaviour is maintained without harming the line structure of the ceiling. The carrier system can be fitted with quick action hangers or nonius hangers. Light fittings can be built in easily. Derako provides a special clamping tool to mount the slats simply to the clips, fixation pins for coupling the slats, rail connectors, spacers and a pot of matching varnish as standard. Under the tab 'Downloads' you will find an extensive installation manual.

Dismantling
The closed linear system is normally supplied fixed. Project specifically and with minor technical adaptations it is possible to supply the system as demountable.
Downloads
CAD drawings
| AUTOCAD .cad / .pdf | BIM revit .rfa | .ifc |
16 x 96 pattern 89 |  | 
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16 x 118 pattern 111 |  | |  |  |
SustainabilityWood has a limited environmental impact
Wood is a natural product, very durable and lasts for years. Industrial wood processing has a very limited environmental impact and wood itself stores CO2. This helps of course to deliver environmentally friendly, healthy and responsible products. But Derako does more ...
Cradle to Cradle®
Derako constructs and works according to the Cradle to Cradle® principle that not only looks at our present needs but also at the possibilities for future generations. Within the five Cradle to Cradle defined quality categories, we are constantly working on improvements.
A+ certified
Derako wants to be sure that all products have a lasting positive influence on human health and the environment. A lot of thought is given to the system- and finishing materials. For example the Derako varnish finish is environmentally friendly and the Derako solid wood system has a very low emission and A+ certified.
FSC® and PEFC certified types of wood
In addition to investment in the field of materials and production processes, Derako also invests in various certificates and eco- labels. In this way we meet the criteria set by the government on sustainable purchasing. Derako is FSC® and PEFC certified and delivers systems on request, and where possible we deliver sustainable and certified types of wood. The advisors at Derako will be delighted to let you know about all the options.
BREEAM and LEED
Derako also has a number of system designs that can make a substantial contribution in obtaining credits from BREEAM and LEED. Derako's advisors will be delighted to inform you further.