Nejnavštěvovanější odborný web
pro stavebnictví a technická zařízení budov
estav.tvnový videoportál

Izolace, střechy a fasády
Archiv článků od 4.4.2011 do 16.1.2012

Archiv recenzovaných článků

zpět na aktuální články

16.1.2012
Mgr. Pavla Ryparová, prof. Ing. Richard Wasserbauer, DrSc.

The article deals with the conditions for the growth of wood-destroying organisms in a closed timber building construction. Describes the typical failure modes of each type of timber structures, presents the model of decaying organisms attack and describes how to protect against them.

19.12.2011
Ing. Renata Straková, Ing. Josef Knob

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.

12.12.2011
Ing. Michael Balík, CSc

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.

14.11.2011
Ing. Hana Pustayová, prof. Ing. Dušan Petráš, PhD.

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.

7.11.2011
Ing. Jiří Zach, Ph.D., Ing. Bc. Jitka Hroudová

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.

31.10.2011
prof. Ing. Jan Tywoniak, CSc., ČVUT Praha, pracoviště UCEEB

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.

10.10.2011
Ing. Petr Tůma, doc. Ing. Jiří Dohnálek, CSc.

Company Betonconsult held in September for the sixth annual conference FLOORS, complemented by the issue of surface treatments. The conference is an annual source of unique information on the best solutions and latest innovations in the field. This year the most important topic was draft changes to the standard ČSN 74 4505th The paper provides the text marked with the standards proposed amendments. You can join the comments. Strike through text is proposed for deletion, underlined for completion.

3.10.2011
doc. Ing. Václav Kupilík, CSc.

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.

26.9.2011
doc. Ing. Václav Kupilík, CSc.

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.

19.9.2011
doc. Dr. Ing. Zbyněk Svoboda, ČVUT v Praze, Fakulta stavební, Katedra konstrukcí pozemních staveb

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.

19.9.2011
doc. Ing. Jaroslav Solař, Ph.D., VŠB TU Ostrava

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).

5.9.2011
Ing. Petra Bednářová, Ph.D., VŠTE v Českých Budějovicích

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.

5.9.2011
Ing. Václav Vimmr, CSc., Ing. Radka Vimmrová

Experience of construction supervision show that expectations for the revitalization and rehabilitation of housing, which includes regeneration or at least repair of residential buildings are not completely fulfilled in practice. At the same time shows how the robust technical supervision for quality of work is important.

22.8.2011
doc. Ing. Václav Kupilík, CSc.

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.

15.8.2011
Ing. Richard Kuk, PUDIS a.s.

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.

1.8.2011
Miloš Drdácký, Michal Kloiber, Jiří Frankl, Jan Bryscejn, Jan Tippner

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.

27.6.2011
Ing. Tomáš Kupsa, DEKPROJEKT s.r.o., člen TNK č. 43 Tepelná ochrana budov

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.

Rockwool ETICS
6.6.2011
Ing. Milan Machatka, CSc.

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.

18.4.2011
Ing. Pavla Zavoralová

The article introduces the basic requirements for properties of materials using phase change in construction. These substances are known as PCM. Furthermore, the article deals with the possible chemical composition of the PCM, the advantages and disadvantages of phase transitions.

4.4.2011
Radim Bařinka, Aleš Poruba

Coloured photovoltaic cells are occasionally used in architectural applications. Their wider utilisation is currently limited by the lower efficiency compared to cells with an optimal anti-reflective coating. Research is focused on desing and manufacturing of anti-reflective coating, which besides of required color will have minimised the reflection in the infrared.


zpět na aktuální články
 
 
Reklama