Acclimatise Korlok at least 48h prior to installation.
Prepare the subfloor. Subfloor must be dry, smooth, level, clean and dust-free.
Korlok should be laid with an expansion gap of 0.2" (5mm) around the perimeter of the room and all fixed objects. Remove the skirting boards and undercut door frames to allow for possible expansion.
Install Korlok, allowing for an expansion gap.
Once installed, remove spacers, sweep the floor with a soft brush and fix skirting boards or suitable edge trim to cover the expansion gaps.
Please note that before installing Korlok, you should refer to our full installation instructions.
At least 48 hours prior to installation, Korlok must be removed from packaging (product may be stacked, but must be rested flat) and allowed to acclimatise in the room where the installation is to take place. Room temperature should be kept between 18°C - 26°C (64°F - 79°F).
For residential installations, acclimatisation is not essential if the product temperature is already in the range 18°C - 26°C (64°F - 79°F).
The subfloor should be solid, smooth, level i.e. less than 3/16” in any 10’ diameter range (5mm in any 3m), sound, clean, less than 95% RH swept and free of all debris before Korlok flooring is installed.
All adhesive residues from previous installations must be completely removed.
Korlok must only be installed on dry floors. The floor must have a moisture reading of less than 95% RH (or according to the National Standard). If any sub floor shows moisture readings above 95% RH then an acceptable damp proof membrane/moisture suppression system must be applied.
Note: that a compliant pH level is also a requirement for concrete slabs in some countries’ Standards. (If using the calcium chloride test procedure ASTM 1869-11 the reading must not be above 5lbs per 1000sq ft. per 24hrs).
All cracks and joints must be filled using a cement based patching compound and the floor needs to be level in accordance with the applicable Standard.
All Gypsum based concrete floors must be sealed with a compatible sealing compound.
Level any grout lines with a suitable smoothing compound and make the floor sound.
These should be solid with minimal flexibility. All loose boards must be firmly fastened and gaps filled. Wood block floors laid direct to earth/ bitumen/pitch must be removed prior to installation.
Make sure these floors are solid; fix any loose tiles and remove any surface polish/sealer.
Fully remove any loose paint or other finishes.
(Including carpet) must be removed.
Any existing floors installed with cutback adhesive must first be suitably covered/encapsulated.
Consult your supplier.
Korlok is suitable over underfloor heating systems, as long as it is insulated from the heating system to ensure that the surface temperature does not rise above 27°C (81°F).
Please consult manufacturers to ensure their system is compatible with our flooring. Mesh/wire systems must be bedded into a basecoat of reinforced fibre smoothing compound. Then a second coat of primer and reinforced fibre smoothing compound should be applied. The room temperature must be between 64-79°F (18-26°C) prior and during installation.
Before starting the installation remove all debris or dust and clean the floor.
Korlok should be laid with an expansion gap of 0.2” (5mm) around the perimeter of the room and all fixed objects, including pipes. This must be increased to 0.33” (8mm) for areas larger than 1000sqft (100m2 ). Consult your supplier for larger areas.**
Skirting boards should be removed and door frames undercut to allow for possible expansion. Alternatively a suitable edge trim should be used to cover the expansion gap.
Plank products should be laid with staggered joints, at a distance of at least 10” (250mm).
For a successful installation, the following tools will be necessary – pencil, utility knife, ruler/straight edge, carpenter’s square, saw, hand roller, pull bar, hammer and rubber mallet are recommended.
Special care must be taken when installing Korlok in rooms that are exposed to large temperature fluctuations e.g. unheated rooms, conservatories or direct sun / through south facing patio doors. In these cases, a 0.4” (10mm) expansion gap should be used. Adhesives are not recommended in the installation of this product.
* Water will not penetrate through the product from one side to the other. This does not include joints between individual tiles/plank.
**Where the flooring run exceeds 50ft (15m) in width or length, an 0.33” (8mm) expansion joint should be used and repeated thereafter.