Energy efficiency of of new buildings: new is not always «warm»

19.10.2015 00:45
Articles about real estate | Energy efficiency of of new buildings: new is not always «warm» Most of the objects of primary and secondary real estate require significant action on warming buildings.  PAI "Capital estate" decided to find out whether it is necessary and home buyers in new buildings independently engage in energy-efficient buildings in the future. What are the rules? The main regulatory document today, which regulates the issue of energy efficiency in Ukraine - DBN V.2.6-31: 2006 "Construction of buildings and structures. Thermal insulation of buildings. " It established the so-called energy passport and design characteristics for building systems. "It indicates which limit heat loss can have a residential building, located in a particular climate zone. In the area to which Kiev, this figure should not exceed 73-89 kW / hr / sq m. m. At present, only 2% of the buildings in Kiev have these characteristics. In 70% of buildings in the capital heat loss by half the above. In the old housing stock heat loss may be 200 kW / h / m. and higher. Do not stick to legislation and many developers ", - said Vladimir Sementsov, director of" EK Service ", the project manager of office and residential complex on the street. Mechnikov, 11-A. According to him, soon the situation should begin to be corrected, since October 1, came into force the national standard DNSTU-NB V.3.2-3: 2014 "Resolution on the implementation of thermo-residential buildings." This natsstandart developed by relevant ministries in order to ensure a common approach with the introduction of the integrated thermo-residential buildings during their reconstruction and repairs. "But count on the fact that the above rules are strictly adhered to by developers, I would not hurry. In our reality the pursuit of short-term profit developer often takes precedence over all the rules, laws and common sense "- said the expert. What violate developers According to experts, in the pursuit of the maximum reduction in the cost of construction, many developers are clearly a violation of the rules. "Among the most common violations in terms of energy efficiency in the primary market does not include the presence of insulated concrete structures bordering one side with the street and the other with a heated room in winter. Thus, a cold bridge: cold concrete surface that extends into the room collects condensate which could lead to the formation of mold and mildew. Another example of violations - is the absence of heat-insulating jacket on the hot water pipe. As a result, the heat is consumed for heating the concrete around the pipe, and the water comes to the apartment tenants have a couple of degrees cooler. There are many other disorders, which are always the same: lack of adequate insulation where you need it ", - said Alexander Popov, director of the project group" Archimatika. " There are those developers that are insulated faÇade, but do so using the "wrong" materials. "Companies who came to build, sell and forget, unfortunately, not in a hurry to use modern technologies and materials. If insulation of facades, they do not disdain even to those to be applied vysokogoryuchie bystroplavyaschiesya and materials. Many of the "builders" based primarily on the availability and cheapness of materials ", - says Vladimir Sementsov. According to Victor Taranchenko, representative of the company "Hertz", another "popular" a violation - the use of the works in stucco facade foam instead of a ventilated facade with mineral wool insulation it. Owners will have to insulate the facades of new buildings Experts agree that some of the newly constructed buildings will have to warm and take other energy-efficient solutions to increase the comfort of living in the house, and savings on energy payment. "If the developer does not pay due attention to the design and saved for professional architects and engineers, the likelihood that new buildings are significant energy losses - high. Often, for the sake of economy or because of ignorance and inexperience are not met the requirements for the individual elements and the structure of the building. Such violations may not be visible at the reception house in operation, but will manifest themselves in the form of significant heat loss in the future ", - said Alexander Popov. Unscrupulous developers are willing to deliberately go to these violations, because they know that saving on energy efficiency, in the worst case, pay a fine, which will be much less. "The use of modern high-quality thermal insulation materials and technologies to build energy-efficient buildings, costs 10-20% more expensive. What is much more than the penalties for the use of substandard building materials, which rarely exceed 100 thousand. UAH ", - says Vladimir Sementsov. According to Anna Iskierdo, director of the project company "AIMM Group", even if the house is insulated in compliance with all standards, it is recommended after 5 years to conduct additional energy efficiency measures. "First is the analysis of energy efficiency of the house at the moment, and determine which priorities and least expensive measures to be done. This can be a simple repair closers door to the staircase, (since because of the closing doors come loose heat loss), or replace the seals on the windows. It may also require additional facade insulation due to the fact that the construction standards were not met, or warmed substandard materials. When it comes to insulation of the facade, it is necessary to take into account that the insulation of one apartment - is ineffective. If you put such a task, it is necessary to insulate the entire perimeter, floors and ceilings. Insulated facade of the house is better to just eliminate the gap, if necessary, change the windows and doors, equipped with effective vestibule at the entrance to the house and, of course, to install heat meters in apartments, "- said the expert. Energy passport will solve the problem? In Ukraine, want to introduce a mandatory energy performance certificate for each building. The corresponding bill number 0856 "On energy efficiency of residential and public buildings" is under consideration in the Parliament and is prepared for the second reading. But, according to experts, the introduction of mandatory certification is unlikely to solve the problem of low energy buildings. "The passport, in my opinion, should be grading the quality, not" compliant "or" non-compliant ". Different categories of objects requires, among other things, a different level of energy efficiency. For example, buying housing-positioned as a "luxury", one must understand what he is being overcharged, including in terms of energy efficiency, "- says Sementsov. According to Victor Taranchenko even in the case of mandatory certification, developers are unlikely to perform flawlessly energy efficiency measures, as it makes the construction more expensive. "In practice, even to get a passport, builders will be able to break inherent in the design documentation standards. After all, the documents will be issued before the start of work. And when taking into operation houses to comply with energy efficiency standards "overseers" will look the other way "- said Taranchenko.
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