We offer wide range of wood profiles like Tatra profile (tongue and groove), loglap profile, floorboad, terrace floor of various types, sizes, grades and woody plants. We also offer accessories like base squared timbers, finishing profiles and joining materials. This bulletin aims to help you choosing the correct wood for your project, give you valuable advice for the correct profile manipulation like storage, painting and installation. If you use our products and follow these recommendations, you will get the best result.
Spruce is the most frequently used material to produce wood profiles like Tatra profile, loglap profile and floorboard. We also offer Siberian spruce, pine, European larch or Siberian larch materials. The individual woody plants differ in density, the amount of resin, hardness, colour and use.
- spruce: it is softer material of neutral light colour, with medium-sized knots, less resin, homogeneous fibre structure, from our zones
Use: universal, interior/exterior cladding – Tatra profile, loglap profile, interior floorboard, squared timbers, finishing profiles
- Siberian spruce: when compared to the spruce, it has more dense structure, neutral light colour, smaller knots, less amount of resin, homogeneous fibre structure, it is from Nordic countries like Russia, Finland, Estonia
Use: universal, interior/exterior cladding – Tatra profile, loglap profile, interior floorboard, construction squared timbers C24
- pine: its much more dense than spruce due to the higher amount of resin —> higher durability, e.g. in exterior, medium-sized knots, slight red colour, significant wood structure (texture), from our zones
Use: universal, exterior cladding – Tatra profile, loglap profile, interior floorboard, terrace floor
- European larch: the hardest of all spruces, high density —> higher durability, e.g. in exterior, reddish colour, significant wood structure (texture), from our zones
Use: terrace floor, façade claddings
- Siberian larch: the hardest and most valuable spruce, high density —> high durability e.g. in exterior, medium sized knots, brownish colour, significant wood structure (texture), long lifespan, from Nordic countries like Russia, Finland, Estonia
Use: terrace floor, façade claddings
We ship our profiles in our own vans Iveco Daily and we consider them the most suitable for this purpose. The van is 7m long, 2.5 m wide and 3.3 m high, allowing the transport of 6-metre-long profiles to various places as well as hardly accessible gardening areas. We deliver ordered goods mostly within 7 days, when ordering at least 30m2 for free, but it depends on our current stock and the chosen length. In case you hurry and need the goods ASAP, we can deliver the goods in 2 days within the whole Slovakia. In case of tailored orders, the delivery time may be prolonged to 14 days since the order.
The wood profiles from our production are packed and bounded by plastic strip or cord, 2-20 pieces per package depending on the size. Profiles from Estonia are mostly packed into perforated thermofilm that preserves features of the material. After the delivery, don’t store the profiles directly on the floor, you should ideally store them on wooden blocks, 5 cm above the ground. If you want to get the optimum results after installation, it is also necessary to protect the profiles against weather conditions like sunlight, rain or high humidity.
In case you bought dried floorboard, we recommend you let it acclimatise in the room where it will be laid. The correct acclimatisation of dried wood profiles (involves interior claddings) is achieved when you store the profile (floorboard, Tatra profile) unopened (4-5 pcs in package) in the room where it will be laid, or in the room with similar humidity and temperature for approximately 7-14 days or more. Wood acclimatisation serves for balancing of humidity gained during the transport and storage with the humidity of installation area, providing minimum movement of material in joints after acclimatisation. (WARNING: we are not responsible for the increased humidity or dampening of the wood profile when acclimatising or storing wood profiles like Tatra profile or floorboard in places with high humidity caused either by the fresh construction – wet walls, open entries like windows and doors with the exterior humidity (after rain, in the winter etc.) for a long time.
Wood profiles are delivered as dried raw materials; thus it is necessary to chemically treat them before the installation in order to increase their lifespan and durability. Chemical treatment consists of treatment against the pest. The profiles shall be painted from both sides, the coating like Krovosan/Bochemit shall be evenly distributed within the profile, since these coatings are diluted with water in a high ratio. As a result of this disproportion, the wood might become very wet and subsequently twisted. If you are afraid of this scenario, you don’t have to use diluted treatment, but then your costs will be increased. Chemical treatment against pests is necessary mostly for the profiles used in exterior, while their use in interior is not necessary.
It is also necessary to treat the profiles for better preservation and the longest durability. The type and colour of such treatment does not matter. Lasures are commonly used, they are sold in various colours and they are the best accessible wood protection. Varnish is also frequently used; it can contain several additives that can increase hardness (tough varnish) or highlight wood texture. Such varnish is suitable for both interior and exterior use. It is often used for floorboards and it can increase their durability. Lately, oil colours or lasures are used more and more often. Oil colours/lasures can be used both in the exterior and interior. They are very popular, since they preserve wood the best. When used correctly, 7 and more years will pass until the new treatment is necessary. Oil colours are often used for floorboards, since the oil coating is softer to touch contrary to the classic varnish. Moreover, oil colours let wood texture shine. There are oil colours with wax or the UV protection that can also extend the durability of your wood.
During chemical treatment of the wood, it is necessary to follow several rules ensuring the quality result of your work:
- We do not recommend you paint the wood on direct, strong sun. If so, you should place such profiles into shade as soon as possible, otherwise the wood gets twisted.
- If you want longer durability, you should paint the profiles used in exterior twice or even three times. The first coating should be performed before the installation, in order to avoid “white lines” around joints.
- Coating for the interior use should be done once or twice.
- Paint the wood profiles with brush in direction of fibres.
- We recommend you paint thin wood profiles of 11 and 15 mm just before their installation.
- The coatings can be combined, e.g. coloured lasure with tough varnish
Installation of wood profiles is mostly applied on foundation boards – squared timbers (non-planed/planed) of various dimensions according to the profile thickness (check out our offer). The installation can also be done by putting the profiles on the flat wood foundation like the old boards, old foundation cladding that shall have similar shape, or even over the OSBs. In case of the floorboard, it can be laid directly on the old floorboard with underlay pad. However, we do not recommend you lay floorboard on concrete surface. When laying wood profiles on wood squared timbers, it is necessary to keep certain gaps suitable for the individual thicknesses and to use appropriate joint material. You can find all the necessary information here:
When preparing the base layer, it is necessary to choose the correct size of squared timbers, dimension (thickness, width) of which depends on the wood profile thickness. The following table will help you choose the right base dimensions:
||RECOMMENDED BASE LAYER DIMENSIONS
||20x30mm, 30x40mm, 30x50mm
||40x50mm, 50x50mm, or bigger
||40x50mm, 50x50mm, or bigger
It is important to keep the correct gaps, either when installing wood profiles or floorboard. The clear width or the void between the individual squared timbers shall correspond to the cladding thickness in order to avoid unnecessary bending or cladding movement after the installation. The following table shows the recommended gaps for the installation of wood profiles like Tatra profile, rounded loglap profile and floorboard.
||60 cm and less
||70cm and less
||from 40cm —> 50cm
||from 40cm —> 70cm
||from č0cm —> 90cm
||from 60cm —> 150cm
* deviation 10%
Fixing can be done in various ways, by classic joining material like nails or wood screws. Tatra profile, rounded loglap profile and other exterior profiles can be fixed also by so-called steel clips. We sell them either with nails or screws (suitable for profiles from 20mm thickness). Tatra profile of 11mm and 15mm thickness can be fixed by nails with piercing gun or clips. In case of wood profiles with 20mm thickness and higher you can use either wood screws or clips with screws. However, we recommend installing floorboard only with wood screws.
We ship clips for all dimensions of wood profiles from 11mm to 45mm, in case of installing 11mm and 15mm thick profiles, clips with nails will be enough, however, for 20mm thick profiles and higher use clips with screws. Clips are placed into the groove and the overlapping part shall be fixed by nail or screw to the wood base layer. When using clips, it is necessary to lay wood profiles from top to the bottom, since in the exterior, the wood profiles shall be installed with the tongue pointing upwards providing the correct water course. The profiles for interior use can be laid from the bottom to the top.
Installation of terrace floor
Installation of terrace floor is different, since terrace floor does not have tongue and groove and the individual laths shall be laid ranging from 3-6mm. Terrace floor is laid on the wooden base plated grate made of the same woody plant. We offer terrace floor made of European larch or Siberian pine. In both situations, we recommend you create base layer from dried squared timbers from the European larch that we offer in various dimensions. The specific dimension depends on the terrace size, bearing capacity and other circumstances, but 50x60mm is the most frequently used dimension. The extension gaps between the individual bases shall not exceed 50cm. When installing terrace floor, the fixings shall be special. Since the material like European larch or Siberian pine has strong inner tension due to the high density and fibre hardness, the ordinary wood screws are not enough. It is necessary to use terrace screws from hardened stainless steel with A2 or A4 finish. When installing ordinary terrace, we recommend you use terrace screws from hardened stainless steel with A2 finish and when installing terrace floor near pool we recommend you use terrace screws from hardened stainless steel with A4 finish that resists even aggressive chlorine. We offer both kinds of terrace screws from Rapi-Tec company with double and separated thread that ensure return of the screw after material movement, e.g. in the winter. Finally, before the anchorage, the terrace floor shall be pre-drilled in order to avoid unwanted shifting of determined gaps and the whole terrace floor.
Roman Jadroň, 2018 ©