Pre installation checklist and preparation
- Wood flooring is influenced by differences in moisture. It shrinks when dry and expands when wet. Before installing the floorboards, check the relative air humidity in the room. Ideally, it should be 50% to 60% all year through. Moisture measurements should also be taken on the subfloor and the levels should be in accordance with the SAWLFA specifications.
- The sub-floor should be stable, even, level, dry and clean before installation. The allowable tolerances with regards to imperfections in the sub floor are 5mm in a perimeter of 3000 mm, and 3mm in a perimeter of 1800 mm.
- Remove loose, flaky concrete by scraping it off by hand or sanding it down. Thoroughly vacuum the floor before starting the installation.
- For floating installations, install an underlayment with a moisture barrier of at least 300 micron.
- For glue down applications, a two-part moisture barrier should be applied to the concrete and allowed to dry for 24 hours before installation.
When using the floating method, a suitable underlay, with suitable moisture barrier should be used. A 2-part rubber underlay with a 300-micron moisture barrier is recommended for optimal moisture protection and noise reduction of footfall.
Start the installation against a long, straight wall. Put the first-floor board down with the groove against the wall. Place a 15mm spacer between the wall and the board to keep the expansion seam open. This expansion gap needs to be maintained all around the room, including doorways, pipes, etc.
Lay the second-floor board in the extension of the first and push the short sided tongue and groove together. Tap the second panel into the first and make sure the seams are completely closed. The last floorboard of the first row has to be sawn to size. Complete the row with the sawn part and start the second row with the remaining piece of the floorboard.
The short pieces of two adjacent rows have to be spaced out as far as possible. To get a stable floor, the absolute minimum is 50cm. Make sure that the first two rows are perpendicular and well connected.