Subfloor preparation

• All sub floors must be clean, level, absolutely flat and dry. Scrape and smooth any debris off of the surface. Sand high areas or joints. Fill low areas and cracks with proper compounds.
• The sub floor surface must be structurally sound
• Prepare all doorways and walls. Undercut all door casings. Remove all moldings.
• Concrete sub-floor must be completely cured and dried (8-12 weeks old) with minimum surface temperature of 60ºF (15ºC) and maximum moisture content of 2% dry-weight basis. The ideal relative humidity in the room should be 55%.
• Wood sub floors need to be well secured with counter sunk screws on ring shank nails. It should not exceed 14% moisture prior to installation.
• Irregularities on the sub floor flatness must not exceed 1/8” every 8 feet.

Glueless Floating Installation

Spread and unroll the required polyethylene cushioning underlayment parallel to the longest wall (they can be trimmed after the installation has been completed). Allow sufficient overlap on all joints with the next sheets; use double adhesive tape to fix the joints. Complete until the whole surface is covered with the underlayment. Pick the first floorboard and align it with the closest wall. Groove side facing the wall. The installation should begin from the right corner of the room.

Use ½” (12mm) temporary spacing-wedges to create the necessary gaps from the walls. Pick the second board, apply 1/8” (3 mm) glue bead at the inner topside of the groove at the board end, and start jointing the board in the row. Never apply glue onto the tongue. Continue the same steps until the first row is competed. Use a specially designed crowbar to push all the joints tight at the same time. Use the special crowbar to tighten joints form the sides and use clamps whenever necessary to ensure tight and square joints. Never fail to wipe off any excess glue immediately. Repeat all processes and install the rest of the floor. The last row is usually narrow and it may be necessary to rip floorboards lengthwise to fill in this row. Measure the remaining space and cut the boards accordingly, ensuring a ½” (12mm) spacing wedges in afterwards. Allow the finished floor to be free from load and traffic for at least 8 hours before all temporary spacing wedges can be removed. Install all the skirting/molding the next day. Make sure that all skirting or moldings are fixed onto the adjacent wall only, and not directly fixed onto the floor.

  The technique uses a simple rotating movement. The two panels are gradually joined and then snap firmly together.