Cracks in industrial concrete floors with top layer of mineral granules are quite common. Their evaluation depends largely on the subjective opinion of the assessors. It is not the exception that the cracks appear after a longer time in the order of weeks to months after the construction. At the time up to three years after construction there is a tendency of their expansion. Cracks have a major impact on the life of industrial concrete floors.

The irregular series on healthy light can not ignore the amendment of Government Regulation No. 93/2012 Coll. [1], which is valid from April 1 this year. Regulation is dedicated to the protection of health at work and is related to the lighting of course.

Cross laminated timber is likely to happen in the near future, the most important product in solid wood construction in residential and high-rise construction. Depending on the size of the used components and their mutual orientation can produce a wide range of products.

This paper deals with the issue of comparing simulations for steady and unsteady thermal state at the massive structures. In this paper, computer simulations are compared with real measurements and measurements of climatic data. The evaluation showed that the steady-state temperature can be comparing with real model used after the end of the accumulation phase. It is evident that the requirements for the temperature factor of the internal surface of the solid structures, set by legislation, are a safe assumption.

Cross laminated timber is likely to happen in the near future, the most important product in solid wood construction in residential and high-rise construction. Depending on the size of the used components and their mutual orientation can produce a wide range of products.

Floors are one of the most long complained structures. Described examples of industrial floors show still the same recurring faults and their causes. The text describes three examples of floors that the author recently assessed either at the initiative of the user of the object, or on the initiative of building contractor.

So far, both the feed-in-tariff (FiT) and the green bonus (GB) was paid by locally relevant electricity distributor. From January 1^st 2013 the new entity enters into the transaction - OTE (Energy Market Operator). The renewable electricity will be purchased by electricity traders instead of distributors. Newly will be introduced a new scheme - hourly green bonus. The rights of existing manufacturers are fully retained.

This article is focused on issues that owners of wooden doors and windows may deal with: product surface maintenance. In the beginning the author presents and compares pros and cons of two popular types of products (made of wood and PVC) in terms of surface service requirements. Then a precise analysis of common types of damages caused by ageing or insufficient maintenance follows. The next part includes a case study focused on step-by-step described process of professional wooden windows surface restoration. Finally, the author summarizes and concludes by proving that concerns about too demanding maintenance of wooden products should not be considered as the main criterion when considering a purchase of wooden or PVC windows.

Standards for the building of steel structures in recent years undergone a similar development as the standards for the design of steel structures. System of the Czech standards was supplemented by EN 1090 standard, that became CSN EN 1090. Subsequently, duplicate Czech standards were repealed and replaced by the so-called residual standards, which include provisions that were in the original Czech standards but are not in the standard European.

The article is research on the thermal properties of various construction types of thermal drillings. It focuses on the impact of their installation on their efficacy, duration and cost and to their safety for underground water and water-related ecosystems.

Series of articles discusses the way of determination of setting the limits of the building envelope air-tightness and its influence on the total value of air permeability, and analyzes the influence of including the elements inside the building to the total value of air permeability. Analysis included 6 experimental houses and proofed the influence of calculated border of building envelope and above all the influence of inside elements like furniture or inside structures.

Video Image Fire Detection is a modern fire detection mechanism of phenomena and processes accompanying fire. Main advantage is the ability and speed of smoke detection, independent of the arrival of the smoke to the sensor. Video Image Fire Detection can achieve higher sensitivity than conventional fire sensors by simultaneously monitoring different parameters in a large area. The article gives basic requirements for Video Image Fire Detector for Automatic Fire Alarm Signaling.

Series of articles discusses the way of determination of setting the limits of the building envelope air-tightness and its influence on the total value of air permeability, and analyzes the influence of including the elements inside the building to the total value of air permeability. Analysis included 6 experimental houses and proofed the influence of calculated border of building envelope and above all the influence of inside elements like furniture or inside structures.

Series of articles discusses the calculation way of setting limits the building envelope air-tightness and its influence on the total value of air permeability, and analyzes the influence of counting the elements the internal volume of building inside to the total value of air permeability. The analysis was carried out under a university qualification work on a set of six experimental houses and in some cases demonstrated to influence the total value of air permeability as calculated boundary envelope air-tightness and especially elements within measured volume of space such as furniture, interior design or lining holes.

The behaviour of real structures in some cases differs from the structure modeled in computational program. Article deals with the influences that can affect the characteristics of the structure, so that they affect the surface temperature of the structure. In particular, the moisture inside the material and air humidity.

The behaviour of real structures in some cases differs from the structure modeled in computational program. Article deals with the influences that can affect the characteristics of the structure, so that they affect the surface temperature of the structure. In particular, the moisture inside the material and air humidity.

The paper includes conclusions from evaluation of results obtained from long-term measuring of innovative types of timber structures. Based on the results of measurements of vertical and horizontal deformation components it is possible to analyze the real behaviour of structures in given conditions. By assessing deformations in various stages, including particularly external and internal environment temperatures, relative air humidity and moisture content of wood, decisive parameters for real structure behaviour can be established.

This paper deals with the impact of using phase change materials (PCM) in light building constructions. It describes how these materials react during the whole year, how they impact the summer temperature stability of a room and how they react in the transtition period and in the heating period. Measuring was carried out in the experimental and reference room in the attic of the Institute of Building Structures. The layout of these identical rooms enables to compare the measured values. The measuring of the indoor climate which had been carried out during the whole year in the reference and experimental room was analysed. The analysis was used to create the basic methodological procedure for using PCM in light building constructions. These materials proved to be efficient in the summer time. During the heating period the power consumption was monitored in relation to the application of the phase change materials.

Today, besides standard insulation products reflective thermal insulations can be purchased on the market. This may for example be a combination of closed air layers with several layers of metallized foil. Dealers of reflective insulation often claim that the thermal conductivity of reflective insulation reaches values lower than 0,01 W/(m‧K). One dealer introduces this fact to consumers in another form: three centimeters of reflective insulation are equal to twenty centimeters of mineral wool. However, are such properties physically possible?