The following conditions should be taken into consideration while examining floor and underfloor should be prepared according to these conditions.
1- Floor surface should be smooth, dry, clean, crack-free and nonporous.
2- Floor should not contain any residue of paint, wax, polish, oil, solvent, putty, adhesive or heavy foreign bodies and inclusion.
3- There should be no elevation difference of transition points between floor surface and other surfaces. Potential elevation differences among floors can be calculated with a surface gage
4- Temperature and humidity of an application place should be checked whether variable or within standard limits.
5- Heat should be checked if floor has an underfloor heating system. The heat of floor should be appropriate for LVT application temperature, and there should also be a heating system report which shows that flooring is applicable.
6- If floor is elevated or on steel construction floors, underfloor should be checked whether it is subject to air circulation..
7- It should be ensured that warps on the surface do not excess 2 mm (when measured with a steel ruler).
8- At least 18°C ambient temperature, 15°C surface temperature and less than 70% relative humidity are required for a fault-free LVT flooring. In any case, please measure the humidity rate of floor before continuing application. If you are not sure, please consult with an expert.
9- Least 18°C is required not only for ambient temperature but also for the temperatures of undercoating and adhesives.
10- All floors except for castable asphalt have a maximum rate of acceptable humidity (also known as structural humidity rate). Among reliable tools, CM unit can be availed of in order to determine the humidity rate. Measured values should be transmitted to the customer in written.
11- For the floors with underfloor heating system, no hole should be drilled in order to measure the humidity rate. (For example; CM unit). Holes may cause damage to heating system. The places with underfloor heating system generally have a startup instruction or heating protocol. The measurement of humidity rate can be performed easily by observing such.
12- The checking of surface quality is under the responsibility of the mounter. If surface quality is not applicable for flooring, mounting should not commence before rendering the surface applicable.
13- The flooring surface should be resistant against pressure and tension for Dry – Back products. Please check the hardness of the surface for Dry- Back application. Please incise vertical and horizontal lines with 1 cm intervals for a 100 cm2 area. If there is no break within the lined 100 cm2 area, the hardness can be deemed to suffice.