Questions & Answers about OrganoWood® Nowa Timber
How does OrganoWood® technology work?
Answer: OrganoWood Nowa may look like an ordinary piece of wood, but it has been modified by cross-linking the wood fibres, giving the timber high resistance to decay. A water-based mineral mixture is forced into the wood under pressure. As the water evaporates, the molecules form strong bonds with the wood fibres. This allows the timber to retain its properties during long-term use in damp environments.
What tests has OrganoWood® Nowa timber undergone?
Answer: We have been developing OrganoWood Nowa since 2015 and conducting field trials and accelerated testing since 2017. Over the past few years, Nowa has undergone a wide range of tests with excellent results, including Durability Class 1 according to EN 113-2 and Class 1 according to EN 350 (natural durability), achieved by 100% of the test specimens.
What are the benefits of OrganoWood® Nowa timber?
Answer: Traditionally pressure-treated timber uses biocides and heavy metals to kill decay fungi and wood-destroying organisms. However, these substances are harmful to health and hazardous to the environment. OrganoWood® technology uses only natural minerals and no substances classified as environmentally hazardous or harmful to health. The products have been environmentally assessed and have received the highest recommendation from both Sunda Hus and Byggvarubedömningen. In addition, the timber turns silver-grey over time and is considerably less prone to splintering than larch.
How should the decking be maintained?
Answer: When cutting, drilling or carrying out other minor work on the timber, the worked surfaces must be treated with OrganoWood 02 Ytskydd or another wood preservative oil in Swedish authorisation class 3.
What raw material is OrganoWood® Nowa decking made from?
Answer: OrganoWood® Nowa decking is made from high-quality Swedish pine.
Can I paint OrganoWood® Nowa timber?
Answer: OrganoWood Nowa can be painted—always test on a sample piece first. Use paint intended for outdoor use and follow the paint manufacturer’s recommendations. Make sure the timber has been allowed to weather for at least 12 weeks before installation and that it is clean and dry on the day of painting.
How does OrganoWood® Nowa timber age?
Answer: The timber ages like ordinary wood and turns silver-grey over time. However, how quickly it turns grey depends greatly on its location, its orientation and its exposure to the elements. In general, sapwood turns grey faster than heartwood because it absorbs water and therefore becomes considerably wetter than heartwood.
Questions regarding OrganoWood’s surface wood protection?
What woods does the OrganoWood wood preservative system work on?
Answer: Use the OrganoWood wood preservative system (OrganoWood® Protection and OrganoWood® Repellent) on timber that needs improved surface protection, for example, pine, spruce, larch and pressure impregnated timber, but virtually all kinds of woods are suitable with a few exceptions. Examples of application areas are wooden structures in moderately exposed environments such a fence boards, panels, patios of pressure impregnated timber of damp indoor environments. For a complete list of woods that can be treated, please contact out experts and distributors Osmo UK.
Can OrganoWood® treated timber be painted?
Answer: Timber treated with the OrganoWood wood preservative system mineralises and thus creates a denser structure on the timber’s surface that protects the timber. On account of the denser structure, traditional paint does penetrate into the timber in the same way as normal timber. Resulting in inferior binding between the paint wood fibres. Consequently, OrganoWood treated timber should not be painted using conventional paint. We are currently working on the development of an environmental classified paint system specially designed for OrganoWood® treated timber.
Can I use OrganoWood® Repellent as a decking oil?
Answer: OrganoWood® repellent works very effectively as a decking oil. It can be used on pressure impregnated decking to produce highly efficient water repellent properties and reduce the risk of mould and surface growth. The treatment also works on other woods such as larch, oak and other hardwoods.
How long does the surface treatment of untreated timber last?
Answer: If the untreated timber is treated in accordance with the recommendations (one coat of OrganoWood® protection followed by two coats of OrganoWood® Repellent.) It is time to perform maintenance with OrganoWood 02,. again when the surface starts to lose its superhydrophobic (water repellent) function. The whole surface does not always need to be maintained, maintenance can be performed gradually, e.g. walkway on a patio/terrace