QUESTIONS AND ANSWERS
FREQUENTLY ASKED QUESTIONS
The OrganoWood® system is a wood protection system which consists of three products. The first stage of the system is to use OrganoWood® 01. Protection to provide the wood with flame and rot protection. The second stage is to use OrganoWood® 02. Repellent as a dirt and water repellent. Finally, OrganoWood® 03. Cleaner is ideal for cleaning and maintaining the surface.
With traditional timber protection systems biocides are used in order to kill the rot fungi and other timber destructive organisms. OrganoWood® technology uses no substances classified as hazardous or harmful, but using only natural minerals and fruit substances. Our products are eco-classified and we have the highest eco-classification from the Swedish Byggvarubedömningen and Sunda hus. In addition, the timber adopts a naturally beautiful silver-grey colour with time.
Timber protected with OrganoWood® has been put through its paces in a number of independent tests carried out by SP – Technical Research Institute of Sweden. Tests include inter alia EN 113 (rot test) and in this test OrganoWood® received the highest durability class (EN 350-1) of 1 against rot. Weather resistance has been tested in the leaching test of EN 84. Flame resistance has been tested using the EN 13501-1 and received the highest available classification (Bfl-s1) for floor constructions.
OrganoWood® products have been developed with silicon compounds, organic catalysts and other natural water minerals.
It is advisable to apply just one coat of OrganoWood® 01. Protection followed by two coats of 02. Repellent onto the timber once it has been fitted for the first time. It is then recommended to recoat 02. Repellent within 2-3 year intervals. In between, surfaces such as decking require occasional cleaning with 03. Cleaner. If the wood decking is not maintained, it risks drying out if it is mainly exposed to extreme sun conditions. A condition that may occur is increased splitting and increased loss of surface wood fibers.
The treated timber becomes slightly fossilised and therefore provides a much harder surface than traditional untreated timber. Thus, it is more difficult for surface coatings to bind to the wood fibres effectively. Therefore we do not recommend the use of conventional paints, varnishes or other surface coatings in connection with OrganoWood® products. In addition, we are currently in the final stages of testing our system with manufacturers of eco-friendly, natural and microporous wood treatments such as Osmo to further the scope of use for our wood protection system.
The treated timber will age as normal timber and will adapt a naturally beautiful silver grey over time. How fast this greying process takes varies depending on situ, exposure and the exterior elements. If using OrganoWood® 01. Protection only, the sapwood will become grey faster than the heartwood due its increased natural absorption of moisture and water. In order to enjoy a more even greying process and decrease the risk of surface fibre loss it is recommended to also treat the timber with OrganoWood® 02. Repellent that decreases the absorption of moisture and water in the sapwood thus smoothing the difference between the sap- and hearwood.
A phenomenon that may occur on aging wood surfaces is the loss of excess surface wood fibers. This occurs when the UV-radiation from the sun is wearing down lignin that keeps the wood fibres bonded to each other. This is likely to occur on timber exposed to very strong sunshine. This will not diminish the wood's protection against rot, as it is only the top layer of the wood fibre that becomes detached from the wood, but it may be less appealing aesthetically. The excess fibre loss is easy to remedy – simply take a coarse brush and brush the affected areas in dry conditions and the excess fibre loss will come off.
The OrganoWood® wood protection products (OrganoWood® 01. Protection and OrganoWood® 02. Repellent) are particularly suitable for species of wood (pine, spruce, larch and regular pressure impregnated timber) that require an improved surface treatment. The recommended use is for wooden constructions that are exposed to tough weather conditions like timber cladding, fencing, decking as well as internal installations in humid and moist conditions.
Yes, OrganoWood® 02. Repellent is a very effective treatment to repel water and dirt from getting into the wood as well and decreasing the risk of surface mould and other fungal attacks such as algae and mildew. However, OrganoWood® 01. Protection is strongly recommended to be applied first to ensure the wood is protected against rot and flame.
The time period between recoating can vary quite significantly depending on the location, exposure and structural element of the wood. For example, decking requires recoating after a year but then does not need to be reapplied for another 5 years. Whereas for cladding it is not necessary to recoat until 10 years, depending on the elements.
As OrganoWood 01. Protection contains water glass, it is strongly recommended to cover any windows to avoid the possibility of glass etching.
If you have a question and cannot find the answer above, please contact us and we will be happy to help.