Alfaflor offers complete solutions for wood treatment, including three processes: autoclave treatment, intumescent varnish application, or spraying of our Eurobois wood fire retardant product. With over 40 years of expertise in fire protection, we can provide customized solutions for every project, certified M1. Whether for industrial, commercial, or private applications, our treatment methods ensure reliable and durable fire protection while respecting the aesthetics and longevity of your wood materials.
Wood treatment
Wood treatment by autoclave
Alfaflor offers you an autoclave treatment service in partnership with our partners specialized in applying fire-retardant treatment on wood, certified M1. This process allows the wood to be deeply impregnated with fire-retardant products, ensuring effective and lasting protection against fire risks.
What is the use of autoclave treatment?
Autoclave treatment is a fire protection method that involves deeply impregnating wood with a fire-retardant product, under pressure, in a closed chamber. This process significantly enhances the fire resistance of the treated wood by slowing down flame spread and increasing the safety of the structures where it is used.
This technique is particularly suitable for wood materials that require lasting and deep fire protection, ensuring that the product penetrates the wood fibers. Unlike surface methods like spraying, pressure treatment acts at the core of the material, providing a longer and more effective protective barrier.
One of the main advantages of autoclave treatment is its ability to offer certified protection, in accordance with Euroclass B-s1, d0 standard or lower depending on the type of wood. It is suitable for projects requiring long-term fire resistance.
It ensures increased security for woods intended for permanent constructions or structures exposed to fire risks.
Advantages of autoclave treatment
- Deep protection: The autoclave treatment ensures the product is thoroughly impregnated, embedding the fire-retardant agent deep within the wood and guaranteeing long-lasting and effective fire protection.
- Solution suitable for dense materials: Thanks to pressure-assisted penetration, this method is ideal for treating thicker or denser timber, ensuring optimum fire resistance.
- Compliance with safety standards: The autoclave treatment meets fire safety standards, including M1 certification, thereby providing certified protection that complies with regulatory requirements.
- Durability: Pressure-treated timber offers long-term fire protection, making it an ideal solution for permanent projects requiring enhanced safety.
- Homogeneous solution: Pressure treatment ensures that the fire-retardant is evenly distributed throughout the wood, without altering its appearance or physical properties.
Your questions about pressure-treated timber
Can timber that has already been installed be treated using an autoclave?
No, autoclave treatment cannot be applied to timber that has already been installed. This process requires the timber to be immersed in a pressurised chamber so that the fire-retardant product can penetrate deep into its fibres. It must therefore be carried out before the timber is installed, either directly in the workshop or at specialised facilities, in order to ensure optimal and long-lasting protection against fire.
Does autoclave treatment only protect against fire?
Yes, this treatment is specifically designed to protect wood against fire hazards by slowing down the spread of flames. The autoclave treatment focuses solely on fire resistance, and we provide certification in accordance with European fire safety standards.
Does autoclave treatment alter the appearance or texture of the wood?
Autoclave treatment may slightly alter the appearance of the wood. This deep-penetrating impregnation process is designed to preserve the wood’s natural appearance whilst providing effective fire protection. However, the tannins in the wood may react, particularly in hardwoods.
The application of intumescent varnish
We offer intumescent coating services, an innovative solution for enhancing the fire resistance of timber. Thanks to our partnerships, we are able to provide a high-quality treatment that is essential for meeting the requirements of the European Euroclass B-s1, d0 standard, ensuring advanced fire protection.
What is intumescent paint?
Intumescent paint is a fire protection method that involves applying a special fire-retardant coating directly to the surface of a material. This coating reacts to intense heat by swelling to form an insulating barrier known as “Meringue”. This process aims to slow down the rise in temperature of the treated materials and delay the spread of flames, thereby improving their fire resistance, whether they are made of wood, metal or other flammable surfaces.
This method is particularly suitable for surfaces that require effective protection without compromising their appearance. Unlike other fire-retardant solutions, intumescent varnish forms an insulating layer on the surface whilst preserving the material’s appearance.
One of the main advantages of intumescent paint is its ability to provide discreet and long-lasting fire protection.
It protects the wood whilst preserving its original appearance, making it an ideal solution.
Intumescent paint can also be tinted to suit any aesthetic.
How does this fire-retardant treatment work?
- Application: The intumescent varnish is applied directly to the surface of the material to be treated using a spray gun. This treatment is suitable for a variety of substrates, such as wood. It may cause the wood to whiten, depending on the species.
- Activation: When exposed to high temperatures in the event of a fire, the varnish begins to react. It swells to form a protective foam known as ‘meringue’, which thickens as the heat increases.
- Insulation: This intumescent foam creates a dense thermal barrier that prevents heat from penetrating the material quickly. It thus protects the underlying structure from damage caused by heat and flames.
- Fire retardancy: This barrier significantly slows down the combustion of the material, thereby delaying the spread of fire. This provides valuable time for people to evacuate the premises and for the emergency services to respond, thus reducing the risk of major damage.
The benefits of intumescent paint
- Enhanced protection: Intumescent paint plays a crucial role in fire protection by helping to contain the fire and minimise property damage. By increasing the time it takes for materials to ignite, it extends the window of opportunity for the safe evacuation of a building’s occupants and gives emergency services more time to bring the situation under control, thereby reducing risks to both people and property.
- Preserved aesthetic appearance: Unlike other, more visible fire-retardant treatments, intumescent varnish is designed to be transparent and does not alter the original appearance of the treated materials. This makes it an ideal solution for projects where aesthetics are important, such as in the case of timber structures or decorative finishes. However, on wood, it may occasionally cause a slight change in colour, without compromising the natural appearance of the material.
- Compliance with standards: The application of intumescent varnish ensures compliance with the European Euroclass B-s1, d0 standard, which guarantees high fire resistance with low smoke emission and no production of flaming droplets. By choosing this solution, you not only ensure the safety of your facilities but also their compliance with current fire safety regulations, which is essential for public or commercial projects.
Vos questions sur le vernis intumescent
In which areas is intumescent paint used?
Intumescent varnish has applications in a variety of fields. In the construction industry, it is commonly used to enhance the fire safety of timber and steel structures, providing effective protection against flames whilst extending the lifespan of buildings. In industry, this varnish is applied to industrial equipment exposed to fire risks, offering it durable and reliable protection. In interior design, intumescent varnish is ideal for decorative wooden features, as it preserves their aesthetic appeal whilst ensuring protection against fire. This versatility makes intumescent varnish an essential solution for several sectors requiring both safety and the preservation of materials.
In which areas is intumescent paint used?
Intumescent varnish is not generally designed to withstand direct exposure to water or prolonged damp conditions. If the treated material is exposed to damp conditions or outdoors, it is often recommended to apply an additional protective coating, such as a water-resistant clear varnish, to protect the intumescent layer, provided that this varnish does not compromise the fire safety standard. This preserves the effectiveness of the intumescent varnish whilst providing protection against the elements, thereby ensuring both fire safety and the durability of the treatment.
How do you apply intumescent varnish to wood correctly?
Our process for treating wood with intumescent varnish uses a spray machine that ensures a uniform and precise application to every wooden surface. The wood is first cleaned and prepared for treatment, then it passes through a booth where the varnish is sprayed evenly to ensure perfect coverage.
Steps in the process:
- Surface preparation: The wood is thoroughly cleaned and prepared to ensure better adhesion of the varnish.
- Even application: Using state-of-the-art equipment, the varnish is sprayed evenly across the entire surface, ensuring a uniform thickness, which is essential for effective fire protection and an optimal finish
- Final thickness check: The thickness of the film is checked to ensure compliance with safety standards.
- Controlled drying: Each coat of varnish dries under specific conditions to ensure good adhesion. We adhere to the drying times
Pourquoi choisir nos services de traitement du bois ?
Partenaires spécialisés avec équipements de pointe : Nous avons une expertise sur deux types de traitement du bois : l’autoclave et le vernis intumescent. Ces protections de précision permettent une imprégnation profonde et efficace des produits ignifuges, garantissant une protection durable contre les incendies.
Réactivité et adaptation à vos besoins : Chez Alfaflor, nous assurons une gestion rapide et personnalisée de vos projets. Grâce à notre réseau, nous adaptons nos traitements selon vos exigences et assurons des délais respectés pour vos chantiers.
Conformité aux normes de sécurité européennes : Nos techniques de traitement et notre produit ignifuge pour bois répondent aux standards rigoureux des normes de sécurité incendie européennes, et notamment à la certification Euroclass. Cette conformité assure que vos matériaux en bois offrent une protection efficace contre le feu, répondant aux exigences réglementaires en vigueur.