CONCRETE SUBFLOOR:
New Construction:
• A new concrete floor must dry at least 1 week per 1 cm (3/8”) thickness up to 4
cm (1-1/2”). Thicknesses over 4 cm (1-1/2”) require twice as much drying time.
For example, a 6 cm (2-1/2”) concrete subfloor must dry for at least 8 weeks. The
moisture content must be less than 2.5% (CM method) or less than 5 lbs/24 hour
per 1000sqft (Calcium chloride method ASTM 1869).
Renovation:
• Remove any damp-porous floor covering (carpet, needle felt, etc.) first.
• Damp-sealed floor covering (PVC, linoleum, VCT, etc.) does not have to be
removed. Always use underlayment and damp-proof membrane.
WOODEN SUBFLOOR
• Remove any existing damp-porous floor covering first.
• Make sure the sub floor is stable. Nail down any loose parts and apply a
leveling layer if necessary.
• Install the Uniclic® planks crosswise to the direction of the existing subfloor.
• It is necessary that the crawl space under the plank floor is sufficiently
ventilated. Remove any obstacles and provide sufficient ventilation (minimum 4
cm (1-1/2”) of total ventilation holes per meter (40”) of floor). The moisture
content of the wood may not exceed 12%.
INSTALLING THE FLOOR
• First install the underlayment, per width and gradually as you progress. If the
underlayment is pre-mounted on the planks, then only use a damp-proof
moisture barrier with water resistant adhesive tape. For Concrete, let the
membrane run up the wall a bit before cutting to size. For wood, cut the moisture
barrier 1 inch from the wall. A molding will be attached to this later. See diagram
3A.
• Begin the first row with a whole plank. First, saw off the tongue on both the long
and the short sides. See diagram 3B.
• Put the plank with sawn off sides against the walls. Put spacers from the
installation kit between the planks and the wall. This will ensure that your
expansion joint is wide enough: 8 to 10 mm (5/16” to 3/8”). See diagram 3C.
• The diagrams indicate where the Uniclic® planks are clicked together by
angling up and down or where they are tapped together flat. Follow the diagrams
precisely. See diagrams 4.1- 4.16
• In places where it is too difficult to install the Uniclic® planks with the tapping
block (e.g. against the wall), you can tap them together using the pull bar and a
hammer. See diagrams 5A-5B-5C.
• There must also be an 8 to 10 mm (5/16” to 3/8”) expansion joint between the
last row and the wall. Keep this in mind when sawing the last row of planks.
(7 pages)
(5 pages)
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