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1. Obligatory testing and exercise of due care
EGGER Laminate and Comfort flooring are manufactured using the latest technology in modern production plants. Stringent quality
control checks are carried out regularly both during and at the end of the manufacturing process. There may be occasions, however,
when damage to individual boards may occur. It is important therefore, to visually check each flooring board before and during
installation. Damaged flooring boards or those that vary from the norm should not be installed but returned to the supplier to be
replaced.
2. Sub-floors
2.1
All sub-floors must be prepared for installation in accordance with regular sub-floor preparation procedures and accepted
tolerances within the flooring industry. When assessing whether EGGER Laminate and Comfort flooring is ready to install, attention
should be paid, in particular, to the points below. In the case of failure to comply, all guarantee and warranty claims will become
void.
Check the moisture level in the sub-floor:
Use a CM device to make sure the following levels are not exceeded:
For cement-based screed ≤ 2 CM % – heated screed ≤ 1.8 CM %
For calcium sulphate screeds / calcium sulphate floating screeds ≤ 0.5 CM % – heated screeds ≤ 0.3 CM %
These values apply to screeds without additives. With the use of additives and in case of fast-setting screed, the measurements
and limits specified by the respective manufacturer shall apply. The test material must be obtained from the lower one-third of the
screed. During this process, the thickness of the screed must be measured and documented.
Check if the sub-floor is level:
The evenness test is based on common standards and takes place by placing a yardstick / straight-edge on the high points of the
surface and determining the gauge at the deepest location in relation to the bearing surfaces (measuring point intervals). Use a
max. 2 mm gauge (vertical deviation) at 100 cm intervals. Larger deviations should be addressed by suitable measures (e.g. with
self-levelling compounds).
Check the load-bearing capacity of the sub-floor:
The sub-floor must be a sealed, self-supporting layer.
Check if the sub-floor is clean:
The sub-floor must be vacuum cleaned.
Check atmospheric conditions:
The following conditions should be met before, during and after installation:
An air temperature of at least 18° C
A floor surface temperature of at least 15° C
A relative air humidity of between 40 % and 70 %.
Obligatory testing and exercise of due care / Sub-floors