FIRE PROTECTED WOOD PRODUCTS

FIRE PROTECTION OF VISIBLE WOOD PRODUCTS

The naturally beautiful and translucent fire protection treatment is suitable for different types of wood from interior and cladding panels to CLT elements and other timber construction products.

 

Fire protection treatment with non-toxic Nordtreat fire retardants meets the requirements of class B-s1, d0 and enables a beautiful wooden surface finish in both indoor and outdoor use, even in the most demanding locations.

There is a certified production system for the most common product groups that are treated with Nordtreat fire retardants. When the manufacturer of wood products complies with the system, they can obtain a CE marking for their industrially fire protected products. If necessary, products can also be treated with our fire retardants at a construction site.

 

FIRE PROTECTION TREATMENT OF WOOD PRODUCTS

Fire protection of visible wood products in buildings can be done industrially or on-site. An industrial treatment enables the production of certified ready-to-use products. This will speed up a construction project and ensure that the fire class requirements are met. On-site treatments in accordance with the instructions must be separately approved by building control authorities.

An industrial fire protection treatment with NT DECO can be certified for products made of various types of wood. Nordtreat has had the treatment system certified for the most common products and therefore the manufacturers can apply for a CE marking in accordance with standard EN 14915: 2013 after the treatment process passes an inspection in compliance with Nordtreat’s certifications. Less common products and structures can be tested and certified individually in cooperation with Nordtreat.

 

FIRE PROTECTED CLADDING PANELS

In Finland the fire protection of cladding panels must meet the requirements of fire class B-s1, d0 in fire class P1 buildings that are no more than 56 metres in height. Typically, such buildings include apartment buildings, nursing homes, schools and other public buildings.

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Tuomarinkulma wooden housing, Pori, Finland


In addition to fire protection, panels treated with translucent Nordtreat fire retardants are well protected from the effects of sunlight and weather. The fire protection treatment also strengthens the wood’s natural protection against mould and decay.

Cladding panels that are industrially treated with Nordtreat fire retardants speed up a construction project because they will not require a coating or maintenance treatment in connection with the installation. Only cut surfaces are to be treated with the same fire retardant and tone that was used during the production process. In outdoor use, Nordtreat fire protection lasts 5 to 15 years, depending on the location. It is recommended that the re-treatment is done using the same product as the original fire protection treatment.

CE marked cladding panels that are industrially treated with translucent Nordtreat fire retardants are produced by many manufacturers. We will help designers and builders find suitable suppliers of cladding products treated with Nordtreat fire retardants.

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FIRE PROTECTED INTERIOR PANELS

 

In Finland, fire protection of panels used on interior walls and ceilings must meet the requirements of fire class B-s1, d0 in for example:

  • Care facilities of fire class P1 and P2
  • Accommodation and office premises of fire class P2
  • Production and storage premises of fire hazard class 2
  • Over 300 m2 shops, exhibition halls and libraries
  • Vehicle repair shops, garages and rooms for technical maintenance
  • Boiler rooms and storage rooms for liquid or solid fuels
  • Corridors in accommodation and office premises


In indoor use, panels treated with Nordtreat fire retardants, either industrially or on-site in accordance with the instructions, maintain their fire protection capacity throughout their life cycle unless the wooden surface is damaged. The damaged area must be treated with the same product that was used for the original fire protection treatment.

 

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Opinmäki school, Espoo, Finland


A non-toxic fire retardant also increases the safety of interior surfaces with regard to emissions. Nordtreat fire retardants have low emissions. They have been tested and are proven to meet the requirements of emission class M1.

CE marked interior panels that are industrially treated with translucent Nordtreat fire retardants are produced by many manufacturers. We will help designers and builders find suitable suppliers of interior panelling products treated with Nordtreat fire retardants.

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FIRE PROTECTED CLT ELEMENTS


CLT (cross-laminated timber) is a solid timber structure consisting of layers of wood glued together. The visible surfaces of CLT modules and other elements can be protected with non-toxic Nordtreat fire retardants in accordance with the requirements of fire class B-s1, d0.

Such structures typically include interior walls and ceilings, staircases, lift shafts, suspended balconies and entrance roofs.

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KOAS Seminaarinmäki, Jyväskylä, Finland - Photo Joonas Ahtikallio


At the moment it is not possible to manufacture CLT panels and elements with a CE marking because there is no harmonised product standard for CLT panels yet in the EU region. For this reason, a CE certification for the industrial fire protection of CLT panel surfaces is not available either. The harmonisation process concerning the product standard is under way. Currently CLT manufacturers can obtain a company-specific technical approval for their products through the European Organisation for Technical Assessment (EOTA).


The required fire protection in accordance with the Euro classification is achieved by complying with the fire retardant manufacturer’s tested and approved instructions and application quantities. However, a site-specific approval by the controlling authority is required for the fire protection of the products. 


Once a Europe-wide product standard exists, the conditions for the industrial fire protection of CLT products will improve significantly. Nordtreat will help wood product and surface treatment companies select suitable treatment equipment, organise the testing of their fire protection treatments and obtain the CE marking when it becomes possible.

Nordtreat will help manufacturers carry out fire protection in compliance with the requirements. We will also help designers and builders find suitable suppliers of CLT products treated with Nordtreat fire retardants.


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OTHER FIRE PROTECTED TIMBER CONSTRUCTION PRODUCTS

 

Many other wood products can also be treated with Nordtreat fire retardants in accordance with the requirements of fire class B-s1, d0. Such products include:

  • LVL (laminated veneer lumber)
  • Glulam (glue laminated timber)
  • Many other engineered wood products
  • Flooring and staircase products
  • Acoustic panels

Nordtreat will help manufacturers carry out fire protection in compliance with the requirements. We will also help designers and builders find suitable suppliers of products treated with Nordtreat fire retardants.

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