THE PRODUCTS SUPPLIED BY PARKIET HAJNÓWKA MAY BE INSTALLED ONLY BY SPECIALISED PARQUET FLOORING COMPANIES*
All wet work, such as concreting, plastering and decorating, should be completed according to good building practice and the building should be carefully dried before the floorboards are delivered to the storage site. Storage, installation and further use of the floor should be carried out under optimum environmental conditions:
- Humidity 45% to 60%
- Temperature 18 °C to 22 °C
- Wall humidity up to 3%
Floorboards should be acclimatised to the room temperature. For this purpose, the packages should be stored in the place of floor installation 2 to 7 days before the installation begins, depending on temperature conditions and the storage method.
ACCLIMATISATION – UNDER NO CIRCUMSTANCES SHOULD THE FLOORBOARD BE KEPT IN THE UNPACKED CONDITION DUE TO THE RISK OF CHANGED WIDTH, MOISTURE CONTENT, GEOMETRY AND THE LOSS OF WARRANTY. FLOORBOARD PACKAGES MUST BE TIGHTLY CLOSED.
For installation purpose, the substrate moisture should be as follows:
- wooden substrate – up to 10%
- concrete substrate – up to 1.7% by the CM method, up to 3% by the oven-dry method
- anhydrited substrate – 0.5% by the CM method, up to 1.5% by the oven-dry method
The concrete substrate should be dry and even (in case of unevenness, it should be milled) and meet the following strength conditions:
- a minimum peel strength of 1 MPa
- a minimum compressive strength of 25 MPa
BEFORE FLOORBOARD INSTALLATION, IT IS NECESSARY TO ISSUE A MEASUREMENT REPORT ON HUMIDITY, FLOOR SCREED STRENGTH AND WALL MOISTURE CONTENT. FAILURE TO ISSUE THE ABOVE REPORTS VOIDS THE WARRANTY.
The floorboards must be visually inspected before installation. Do not install any damaged floorboards. The direction of floorboard laying is determined by the dimensions of the room. If none of the sides of the room exceeds 8 m, we recommend laying the floor along the direction of sunlight, i.e. perpendicular to the sunniest window in the room. For dimensions exceeding 8 m or long and narrow rooms, e.g. corridors, the floorboards should always be laid along the longer side.
The natural features of the wood and each floorboard in a given species create the original colour and appearance of the floor after laying; the floor may differ from the design pattern at the point of sale. The floorboards are intended for indoor floor installation.
The manufacturer does not recommend laying solid floorboards on heated substrates; contractors who intend to lay the floorboards on heated substrates will do so at their own risk.
Solid wood boards should never be laid as floating floors.
Floorboards with visible defects should not be installed and possible complaints should be reported at the point of sale. After installation, the floorboards should undergo a quality acceptance inspection by both the parquet flooring specialist and the owner, even if the owner was not present during the installation. Parkiet Hajnówka shall not be liable for any costs if the floorboards have been installed with noticeable defects.
No complaint shall be accepted for:
- Floor with damage caused during installation
- Natural wear and tear of the floor
- Mechanical damage caused during use (scratched by, sand, animal claws or teeth)
- Dents and cracks due to flooding with liquids, etc.
- Acoustic effects of use
- Diversified colouring and natural colour change due to sunlight.
For installation and aesthetic reasons, the width of the last row of floorboards should be planned and should be at least 70 mm. To do this, one must measure the width of the room before installation, subtract 30 mm (width of 2 expansion joints) and divide the number by the width of the floorboard. Example: 4000 mm / 140 mm = 28.57 rows.
The result obtained is the number of floorboards rows in the floor. (It is usually a number with a value to the right of the decimal point.) If the laying procedure starts at the wall, the width of the outer rows must be calculated as follows:
- Add 1 to the values of the rows to the right of the decimal point (0,57)
- 1.57* floorboard width (e.g. .140 mm)/2=109.9[mm].
Hence, cut the first floorboard row to a width of about 109 [mm] and finish laying the floor with the same width of floorboards.
* A SPECIALISED PARQUET FLOORING COMPANY MEANS A COMPANY WITH DOCUMENTED, AT LEAST 3 YEARS’ EXPERIENCE IN LAYING WOODEN FLOORS, CERTIFIED BY A PARQUET FLOORING MASTER OR PARQUET LAYER DIPLOMA.
INSTALLATION WITH FLOORING ADHESIVE
This method is used for laying floors on concrete or screed as well as for laying new floors on existing stable and levelled wooden floors.
Application of adhesive
The adhesive must cover at least 60% of the floorboard surface. For adhesive application, use the B10 – B15 serrated trowels, depending on the size and width of the floorboard to be installed. Do not use a serrated trowel with small notches (e.g.: B3). The concrete substrate should be dry and meet the following strength conditions:
- a minimum peel strength of 1 MPa
- a minimum compressive strength of 25 MPa
Only one or two-component polyurethane adhesives, which are recommended by the manufacturers for the bonding of factory varnished wooden floors, may be used.
DISPERSION ADHESIVES MUST NOT BE USED!
1. Place the first row of floorboards with the groove facing the wall and maintain the expansion gap. Press the floorboards until the adhesive bonds to the substrate. Excess adhesive pressed out on the wood surface should be immediately removed with a damp cloth. Do not apply the adhesive to the tongue or groove of the floorboards.
2. The floorboards should always be laid in a herringbone pattern, interlocking the ends by at least 150 mm. The last floorboard in a row should be measured and cut, leaving an expansion gap of up to 15 mm. If possible, start the next row with the cut-off part.
3. After the first 3 rows of floorboards have been laid, strap clamps can be used to pull them together and hold them in place while the adhesive is setting.
4. For the last row, the width of the last floorboard can be measured by placing it against the wall and marking the correct width.
5. Cut openings for all pipes, columns, frames, obstacles, leaving an appropriate expansion gap.
INSTALLATION WITH SECRET NAILING
Floorboards can be fixed with secret nails directly to the prepared wood substrate. If the existing wooden boards are sufficiently stable and flat, the new floorboards can be laid directly on them at an angle of 90°.
If new floorboards are to be laid in the same direction as the old ones, plywood sheets must be fixed to the existing substrate, leaving 15 mm gaps between the sheets.
If the existing wooden substrate is not levelled enough, it should be levelled, e.g. with waterproof plywood.
When laying the floor on a concrete substrate, we recommend fixing a waterproof plywood (preferably with glue and dowels) with a thickness of 18 – 24 mm and expansion gaps, and then fix to the right floor using nails.
Note! If the plywood is fixed with dowels/screws, be careful not to damage the systems installed in the floor.
1. Place the first row of floorboards with the groove evenly against the wall and maintain the expansion gap. Fasten with nail (spacing 200-300 mm – at least 2 floorboard nails, if possible at least 70 mm from the end of each floorboard). Similarly, fasten along the length of the floorboards at an angle of 45°-50° by inserting the nails into the tongue. A nail gun can be used for this purpose.
2. Arrange another row of floorboards by inserting the groove into the tongue and nail them to the ground at an angle of 45°-50°.
3. Lay the floorboards from left to right. Always lay the floorboards in a herringbone pattern, interlocking the ends by at least 150 mm. The last floorboard in a row should be measured and cut, leaving an expansion gap of 15 mm. If possible, start the next row with the cut-off part.
4. For the last row, the width of the last floorboard can be measured by placing it against the wall and marking the correct width. Place the floorboard to be in the last row on the floorboard of the previous row. Using full-width cuttings and expansion wedges at the wall, mark the cutting line in the last row.
5. Cut openings for all pipes, columns, frames, obstacles and account for the necessary expansion zone.
6. The expansion gaps at the walls should be covered with skirting boards fixed to the walls.