Causes of failures and errors in building basement are worse distinguishable than causes of errors of building above ground. For the poor, sometimes even impossible access to the basement and the underlying structure, the method of remediation is difficult. Humidity is one of the most feared cause of failures.

The author is concerned with the design of flexible placing and the explanation of resonance effects in a flexible element of one-mass and two-mass placing machines on the basis of theoretical analyses and practical experiences. He highlights problems regarding rotational machines placed flexibly due to high excitation frequencies to be used for significantly lower excitation frequencies. He points out of the necessity of cooperation between the designer of the machine flexible placing and the building safety engineer in cases of light construction structures of floors and ceilings.

Causes of failures and errors in building basement are worse distinguishable than causes of errors of building above ground. For the poor, sometimes even impossible access to the basement and the underlying structure, the method of remediation is difficult. Humidity is one of the most feared cause of failures.

The paper focuses on the differences between equivalent thermal conductivities of the masonry from hollow bricks in vertical and in both horizontal directions. Recent CFD studies presented the ratio between thermal conductivities in vertical and in horizontal direction (perpendicular to the surface of the masonry). This study shows the relation between thermal conductivities of the masonry in both horizontal directions.

Excessive moisture may be the objects of wooden folk buildings have a negative effect on all the wooden structures, which are these objects formed. This is because if any of the wooden elements has excessive humidity, there is a risk of assault at his wood-destroying biological pests (wood-decaying fungi, wood-destroying insects, rot and mold).

The major damages in concrete structures caused by fire are a breach of the concrete strength, the cracking, peeling, discoloration and deformation of elements. The most important are reduction in concrete strength becomes associated with its subsequent bursting. Although quantification of the main changes of the strength is unreal, it is possible to determine its damage by measuring the speed of ultrasound.

Sloping roofs meet today not only the function of protection from the rain. Use attic space for residential purposes made ​​them cladding, which must withstand moisture influences from both the exterior and the interior. Frequently discussed issue is the composition of construction and materials used. These two factors strongly affect the hygrothermal regime in construction and thus the quality of the internal microclimate.

Within the grant project "Multi-storey buildings made ​​of wood" in the laboratories of the Academy of Sciences in Prague and TAZUS performed number of tests of wooden skeleton joints with steel plates, which confirmed the theoretical assumptions and calculations, and demonstrate their reliability and functional and economic advantages for use in practice. Here are a few of the results of experimental tests.

Family houses belong among the simple structures that are usually built with a classical way. Although the technology of construction is not difficult, it is possible for gross neglect of basic technological practices and the protection of buildings during construction to cause such damage, which is difficult to repair, even for the increased financial costs. Evidence of this is an example of one family house for individual living in the suburb of Prague on the basis of expert opinion.

The aim of the research was to determine the effect of chemical degradation of the surface layers of wooden structural elements to their mechanical properties and depth to which the damage extends. Degradation of the surface layer of wood structural elements caused a chemical reaction of some compounds contained in the fire in the past repeatedly coatings applied to wood structures of historical buildings. Such chemicals include ammonium sulphate and ammonium phosphate.

Z1 Change of the standard ČSN 73 0580-1 Daylighting in buildings - Part 1: Basic Requierements was issued in January of this year. The standard itself is valid since June 2007. Z1 Change does not bring major changes, however, it specifies the text of some articles, especially the methodology of the assessment of shielding with regard to shielding by the constructions of the same building.

As a conductive surface of terraces, pavings are subject to changes in volume – shrinkage and streching. Shrinkage of adhesives is a result of hardening and drying (ripening) or cooling (especially in winter). It depends on time, relative humidity and the size of the cross sections. Streching is caused by the difference in temperatures above the freezing point (temperatures in summer are critical) with the base temperature at which the paving was laid down.

Nowadays there is a growing interest in quality and high energy saving housing. The following article presents the almost unusual renovation of a terraced building in Denmark. It was expected that after the renovation the building with become CO₂ neutral. The last house of a terrace in the twon of Albertslund, Denmakr was chosen for the renovation. It had been built in the 1960's and it is a two story terraced house with a 50m² footprint.

This paper is focused to the fire resistance of multi-storey buildings with light wooden skeleton. Computational procedures in Eurocode are applicable simply and only for a limited number of building elements. For scientific work in this topic are indispensable fire experiments and their subsequent evaluation by means of numerical and analytical models.

This paper is based on the results of theoretical and implementation work in the development of mechanical connections with steel plates and steel elements in timber structures. The analysis of the slip of joints and support details ranks among important issues from the point of view of designing timber structures. The influence of joint stiffness on structural behaviour should be considered in modelling assumptions.

In January I published an article about the upcoming revision of CSN 73 0540-2 Thermal protection of buildings, Part 2: Requirements. I expressed to changes in each individual chapter. Since then there is new development in the standard revision. Some comments by members of the Standardisation Committee No. 43 and by professionals from the April public consultation of the standard were implemented. Some chapters of the standard are nearly unchanged since January, but some have changed in fairly major way.