Follow this simple 5 step guide to install Karndean LooseLay flooring:
Ensure that you acclimatise Karndean LooseLay for at least 48h prior to installation.
Preparation of the subfloor which must be dry, smooth, level, clean and dust-free.
Ensure that the room edges are solid and that all thresholds or openings are edged with a strip of Karndean Tackifier.
Install the LooseLay with a ‘tight’ fit to the wall and up against themselves.
If the floor area is longer than 4m please follow the Grid stick installation.
Please note that before installing Karndean LooseLay, you should refer to our full installation instructions.
Acclimatisation of Material
Karndean LooseLay must be removed from its’ packaging at least 48 hours prior to installation, (product may be stacked, but must be rested flat) and allowed to acclimatise in the room where the installation will be taking place. The ambient room temperature should be kept between 18°C – 29°C (65°F – 85°F).
Subfloor preparation must comply with ASTM F710, AS/NZS 1884, BS 8203, DTU 53.2, DIN 18365 (Teil C) or other applicable National Standards and Building Codes for the installation of Resilient Flooring and in strict accordance with the following installation guidelines:
The subfloor must be:
- clean and dust-free
It should also be prepared as follows, dependant on your subfloor type. Note: Solvents and other abrasive chemicals used to clean or remove subfloor contaminants can damage the backing of Karndean LooseLay and affect the product’s performance.
Old Adhesive residues
All adhesive residues from previous installations must be completely removed.
Karndean LooseLay must only be installed on dry floors which must have a moisture reading of less than 95% RH (or according to the National Standard). If any sub floor shows moisture readings above this, then an acceptable damp proof membrane or 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).
Subfloors and Screeds: 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, also 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 absolute minimal flexibility. All loose boards must be firmly fastened, gaps filled and undulations removed. Where necessary, overlay floorboards with flooring grade plywood (6mm or 9mm) or similar.
You must ensure that these floors are solid; any loose tiles are fixed and remove any surface polish or sealer.
Karndean recommend the removal of these products if installed directly to earth, bitumen/ cutback or pitch. Then prepare floor to applicable Standard.
Metal and Painted Floors
You must fully remove any loose paint or other finishes.
Consult your supplier.
Underfloor Heating and Services
Karndean LooseLay 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 (80°F). The underfloor heating system must be switched off 48 hours before, during, and for 48 hours after the installation; then the temperature should be gradually increased (typically 2°C/hour) to the desired warmth. Mesh or wire systems must be bedded into a base coat of reinforced fibre smoothing compound. Please ensure that you refer to manufactures guidelines for required depth of aforementioned systems. Karndean LooseLay installation methods are then followed as recommended in these guidelines.
Before beginning the installation ensure to remove all debris or dust and clean the floor very well.
Karndean LooseLay can be installed on any subfloor; that is flat, level, smooth and dry, but need not be porous; using one of the following three options:
1. Loose lay:
Karndean LooseLay must be fitted ‘tight’; check that the room edges are solid and all thresholds and openings are edged with a 10cm (4”) strip of Karndean Tackifier or Pressure Sensitive Adhesive. The tiles/planks must be fitted ‘tightly’ to the wall and to themselves. If the floor area to be installed has any wall longer than 4m (13’) please treat the installation as a Grid stick installation (see below).
2. Grid stick:
In rooms with any wall longer than 4m (13’) the perimeter of the room requires a 10cm (4”) strip of Karndean Tackifier or Pressure Sensitive Adhesive applied to the subfloor, and also at 4m (13’) distances parallel to each perimeter wall, covering the floor in a grid fashion. The Karndean LooseLay tiles or planks are then fitted ‘tightly’ across the room to the wall and to themselves.
3. Heavy Traffic Areas:
In areas of high traffic (eg. high footfall- entrances, high frequency wheeled traffic) we recommend installing tiles/ planks with a full coverage tackifier/pressure sensitive adhesive. Note: The adhesive used should still allow for easy ‘peel up’ and replacement of tiles/planks in this area.
Note: High Spillage Wet Areas/Sun Rooms/Conservatories/Panoramic Windows:
In areas that are likely to be subject to high water spillage or extreme temperature fluctuations, the use of a full spread epoxy or urethane adhesive is recommended.