In last time popularity of wood-based structures is increasing. Most parameters in the design phase can be calculated using known procedures, but the acoustics is a problem with the theoretical determination of sound reduction index of wooden structures just, because there are the only reliable methods to determine transmission loss of silicate-based structure. In this paper is presenting the calculation method used to determine the sound reduction index of timber floor structures with visible beams.

With regard to the program Green for savings the speculations appeared that the producers of thermal insulating materials increased the prices in reaction to the introduction of the subsidy, so that, ultimately, investors pay the same as if the subsidy had ever been introduced.

When heat and energy assessment of existing buildings it is often a problem to determine the heat transfer coefficient U. In many cases it is possible to use a relatively simple measuring device. The device is designed only to measure heat transfer coefficients for vertical facade structures. It could be alternatively used for horizontal structures such as ceilings and floors as well.

One of the oldest remedial measures include insulation with air cavities. The most effective solution is to create a nationwide voids under floors designed to ensure air movement. This leads to diffusion of water vapor structures and thereby reduce moisture. These measures can not be undertaken alone, they are always part of a combination of remedial interventions. An example of such a solution is given on a complicated historical building in the middle of Prague - in the palace, which is situated in steep terrain notch below the Prague Castle.

After the implementation of energy saving measures (insulation, replacement windows, hydraulic regulation of heating, etc.) the energy consumption will reduce on the calculated level at which will hold a few years. Evaluation of ENCON projects has found that after 1 year to 2 years energy consumption will rise again.

Ensure environmentally friendly disposal and possible recycling of old and damaged clothing is quite problematic in practice. The problem with waste disposal of textiles is the fact that clothing is a waste mixture of natural and synthetic fibers. The paper deals with possibilities of development and production of insulation materials based on waste textile fibers and their subsequent application in modern floor construction.

This paper deals with changes in the newly revised technical standard for building thermal performance in terms of ventilation and distribution of air in the building. This paper describes the formulation of requirements, when it is necesary to guarantee a quality of indoor environment and also minimize the energy consumption of ventilation. Attention is also paid to disseminating of air into leaks in the facade or roof.

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.

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).

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.

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.

In this article, structural design of selected parts of the dewatering system of the living com-plex is described, the impact of construction procedure on particular parts of the living com-plex is discussed and first experience from the operation of the dewatering system is menti-oned. Further, the expert opinion of selected manager is added and the principles of service regula-tions are presented.

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.

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.

One of the important functional properties of ETICS is the stability on the substructure after construction into the building. The paper deals with the CSN 73 2902, which specifies requirements for the design and use of ETICS, which consists thermal insulation boards made ​​of expanded polystyrene or mineral wool.