Benefits - Lunawood

Lunawood products are thermally modified using only natural methods, heat and steam. Thermal modification significantly improves the wood’s properties throughout the wood, thereby expanding the range of applications in which the wood can be used. Lunawood Thermowood is most known for its dimensional stability, durability and sustainable nature. It doesn’t require surface coating even in the most challenging climate conditions, which makes it an ecological choice throughout its life cycle.

Product Properties

Dimensionally stable

Significantly improved dimensional stability. Lunawood retains its original shape better than untreated wood.

Low maintenance

Lunawood does not require surface treatment in any climate. When left untreated, it gradually develops a beautiful silver colour.

For all climates

Proven to work well, even in the most challenging climates. Does not react to changes in humidity.

Healthy

Lunawood on decorative surfaces increases comfort and improves wellbeing. The physiological and psychological effects of wood on humans are undeniable.

Certified quality

Patented non-toxic production method for producing ThermoWood®. Continuous quality control audited by a third party to ensure a long life cycle.

Pleasant features

Delight to all of the senses: feel, appearance and scent are sophisticated yet natural.

Sustainable throughout

Certified Nordic raw materialfrom nearby forests. Lunawood acts as a carbon storage and is 100% recyclable.

Pure material

Truly natural product with no chemicals. No harmful indoor air emissions or resin leakage, even at the highest temperatures.

Nordic

Designed and made in Finland. The Nordic approach extends to architecture and the way we do business.

Sourced from sustainable Nordic forests

We only use Nordic PEFC-certified wood in our Thermowood production that is sorted in accordance with our specific and strict requirements. The high and even quality of our production is based on a logistics chain that is carefully managed from forest to final product. Together with our suppliers, we select and use only the best wood for our production in terms of type and quality. When using Lunawood, you can always be sure that the raw material is from a renewable and well-managed Nordic forest.

Good to know about Lunawood Thermowood

Treatment Class

Thermo-D, where D stands for durability, has caramel brown tone. Its durability and stability are improved significantly. Thermo-D is thermally modified at 412.6 F (212ºC) and is suitable for internal and external applications without the need for chemical preservative treatment. Patented ThermoWood® process enhances Nordic wood’s properties throughout the wood.

Dimensional Stability

Lowered equilibrium moisture content of Lunawood ThermoWood® makes it dimensionally stable and the material retains its shape far better than untreated wood. The outstanding dimensional stability allows Lunawood to be successfully used in all climates and even in hot and humid weather conditions indoors and outdoors.

Use Class

Thermo-D is suitable for Use class 3 (EN 335) applications, “situations in which the wood is above ground and exposed to the weather (particularly rain)” It is suitable for use as cladding facades, rainscreen, decking and many other external applications. Lunawood ThermoWood® is not recommended for use in direct contact with the ground.

Durability

Thermo-D is classified as durability class 2 (EN 350) “durable” and carries a Building Research Establishment (BRE) endorsement stating an expected service life of 30 years when used as cladding and decking. Durability and colour is consistent throughout the piece.

Termite Resistancy

Lunawood ThermoWood® is not termite resistant. Lunawood can be treated with specialist termite chemical treatments.

Non-Toxic

Lunawood ThermoWood® is a pure organic material produced using only natural methods – heat and steam – without chemicals.

Leaching

Thermo-D will not leach colour. Minor release of the color pigment is possible during the first rains and in humid spaces like sauna and spa.

Resin Free

Due to the thermal modification Lunawood ThermoWood® products are pure, safe, and hygienic for indoor use, even for allergy suffers who are prone to wood-related reactions. From the visual point of view, surface treated Lunawood ThermoWood® retains its colour beautifully and does not secrete any resin through the paints or tints. And furthermore, thanks to the resin-free property, the knots don’t show up through paints or tints even over time.

Scent

Lunawood ThermoWood® has a characteristic and elegant scent. Scent emerges in heat treatment from natural components of wood, along with other desirable properties. Scent has similarities with other products where heat and aroma are elements, like coffee extracted from roasted coffee beans, smoked foods, BBQ where smoke flavour is important, whiskey and cognac which are aged in flame-treated barrels.

Acoustic

Lunawood ThermoWood® walls, ceilings, floors, or other interior elements naturally soften noise by creating a soft, sound-breaking surface in the space. Echo is reduced on wooden surfaces, which reduces the noise level in the premises. The porous wood surface does not reflect sound in the same way as hard and artificial materials. According to the tests, Lunawood ThermoWood® has 20% shorter reverberation than hard surfaces. When installed battens or Lunawood 3D profiles, the reverberation is even shorter.

Fire Rating

Fire rating of Lunawood ThermoWood® products is according to ASTM E84, Class B.

Machineability

Processing does not affect the unique performance properties of Lunawood ThermoWood®, as it is modified throughout. Planing Lunawood gives its surface a superior quality. Sawing Lunawood is just as easy as sawing ordinary wood. Wear dust mask and eye protection when machining the Lunawood.

Using Side

Our pine products have heart side as using side due to its better durability (Picture 1). Our spruce products have SAP (sapwood) as using side due to straight grain structure of spruce which reduces de-lamination (Picture 2).

Installation

For installation information please refer to the Lunawood installation guide:

https://lunawood.com/us/download-centre

Gluing

Gluing of Lunawood Thermowood is possible. However, the gluing and compression time may be 4–6 times longer compared to unmodified wood. Good results can be achieved with most common adhesives, but PUR (Polyurethane-reactive adhesives) glue gives the best performance according to test results.

Surface Coatings

Linseed oil is not suitable for ThermoWood® because it enables fungal growth. Lunawood ThermoWood® will accept most high-quality surface coatings that are suitable for un-modified wood. It can be treated with tinted or pigmented wood oil, wax, wood-protecting stain, varnish or paint – which contains a UV-filter – which helps retain the surface color. The surface treatment can be applied either before or immediately after installation using only a thin coat. When coating, Lunawood ThermoWood® doesn’t require four side treatment. Only weather exposed surfaces might be coated. It is always recommended to seal the cut ends.

Maintenance

Lunawood ThermoWood® is durable and does not require maintenance to withstand time. To keep the original appearance of ThermoWood®, surface treatment is required. The surface treatment should be renewed as necessary. The need for re-coating varies depending on the climate, amount of usage and the degree of exposure to UV-light.

Wearing Over Time

Like all timber products, Lunawood ThermoWood® will go grey upon exposure to UV and moisture, and in time may show some fine cracks or splits on the surface. The graying effect will be visible in a relatively short period of time, 3 to 6 months after installation (see examples below). It is recommended to apply UV-protected and colour pigmented wood coating to help preserve and maintain the original caramel brown colour and appearance.

 

Read more: https://lunawood.com/story/the-natural-greying-of-lunawood-thermowood-2/

Transportation and Storage

Lunawood ThermoWood® should be carefully transported and stored horizontally in a manner consistent with other high-quality decorative wood materials. Store Lunawood Thermowood horizontally on bearers at least 3” off the ground.

 

Lunawood Thermowood profiles and accessories must be kept clean, dry, under cover and out of the weather.
Avoid exposure to UV-light as Lunawood ThermoWood® will turn to silver grey. Store Lunawood in its original packaging or completely and tightly covered under a UV-protective wrap during installation phase to avoid graying of the surface and the formation of shade differences.

Handling

Extra care must be taken during handling and installation so as not to damage the factory finish of the boards. Therefore, sorting of the boards should be done with support from both ends or the middle. The same care must be taken during transfer. Lunawood has a uniform color throughout the profile. Even small dents and scratches are not visible, and the surface can be sanded if necessary – and the product still has a beautiful original shade.

Waste Disposal

Dispose of off-cuts in the same manner as untreated wood. Lunawood ThermoWood® can be burned like untreated wood.

Lunawood ThermoWood® Raw Material Certification

Lunawood has FSC and PEFC chain of custody certifications and is sourcing only from certified suppliers. Lunawood uses wood from sustainably managed Nordic forests.

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