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S. Korjenic:
"Determination of the thermal resistance of walls (masonry) in dry and moist state";
Talk: Detection and Management of Risk Processes in Building Insulation - part 2, Faculty of Management, University of Presov in Presov; 2011-09-16 - 2011-09-18; in: "Detection and Management of Risk Processes in Building Insulation", (2011), 10 - 17.

Conclusions from thermal conductivity measurements
- There was good correlation of the thermal conductivity values of the dry cementatious material plotted against density with the exponential relationship (the brick material did not fit good)
- The standard deviation for the AAC measurements was 1.8%, that is good agreement between Institutes for this material.
- The standard deviation for the concrete was 3.8% - which is acceptable 
- The standard deviations for the two mortar materials were about 10%. This is not precise enough for industrial needs.
 - The standard deviation for the Brick, was particularly difficult because of the thin samples, and was about 8.6% - this is bad.
 - There is rather poor inter-laboratory reproducibility when measuring materials with a thermal conductivity greater than about 0.25 W/m.K.

Conclusions from water vapour transmission factor
The results show that there were large standard deviations 20% and 30% in the inter-laboratory reproducibility - this is bad
Conclusions from hygroscopic sorption measurements
The results of these measurements show quite large differences between Institutes, especially at the high RH values
Conclusions from hot box measurements
- Validation of EN 1934
Within the measurement uncertainty of the two methods the procedures specified in EN 1934 produce acceptable agreement with measurements made in guarded and calibrated hot box apparatus.
- Reproducibility of the 2 hot box methods
The full statistical treatment of the hot-box results given the reproducibility standard deviation was approximately 3%.
- Repeatability of the 2 hot box methods
The full statistical treatment of the hot-box results given the repeatability standard deviation was about 1.0%.
Agreement of hot-box measurement and Conclusions
The agreement between measured and calculated values were acceptable for the hollow concrete masonry but showed a deviation of up to 15 % for the hollow brick masonry

hot-box measurement, water vapour transmission, thermal conductivity measurements,hygroscopic sorption