2012 Thermal protection of buildings. SP50.2012 Thermal protection of buildings Thermal calculation of the building for the joint venture 50.13330

The results of the calculation of the energy efficiency of the project
apartment large-scale house of a typical series satisfying
Requirements for Resolution No. 18 and SP 50-13330-2012

As an example, a typical large-passaged 17-storey 4-section residential building with the 1st non-residential floor of the Moscow series P3M / 17N1 is 256 apartments:

• square heated floors of the building A S. \u003d 23310 m 2;
• total area of \u200b\u200bapartments without summer premises And square\u003d 16262 m 2;
• useful area of \u200b\u200bnon-residential, rented premises And floor \u003d 880 m 2;
• total area of \u200b\u200bapartments, including the useful area of \u200b\u200bnon-residential premises A kV + floor \u003d 17142 m 2;
• living area (residential area) And J. \u003d 9609 m 2;
• the amount of the area of \u200b\u200ball outdoor fencing of the heated membrane of the building And OGR. Sumy\u003d 16795 m 2;
• heated building volume V. from \u003d 68500 m 3;
• compact building And OGR. Sumy/V. from = 0,25;
• the ratio of the space of translucent fences to the area of \u200b\u200bthe facades is 0.17.

Attitude A S./A kV + floor = 23310/17142 = 1,36.

Construction is performed for the region. Moscow with HSOP \u003d (20 + 3.1) ∙ 214 \u003d 4943 ° C · day. According to the table. 9 SNiP 23-02-2003 Normated specific consumption of thermal energy for heating and ventilation of the building, referred to M 2 Square of the Floor Apartments without summer premises and the degree of the heating period - 70 kJ / (m 2 · ° · · day), after conversion it should be q h. y.req= 70∙4943/3600 = 96 kWh / m 2. The population of the house 20 m 2 of the total area of \u200b\u200bapartments per person is adopted, then in accordance with the above-mentioned methodology, the normalized air exchange in the apartments will be 30 m 3 / h per resident, and the specific amount of household heat gain 17 W / m 2 of the living area.

The heating system is a vertical-single-tube with thermostats on heating devices, joins intra-quartered thermal networks from the CTP through the elevator, the coefficient of efficiency of the power supply of heat in the heating systems Z \u003d 0.85. Exhaust ventilation system with a natural motion and a "warm" attic, individual channel fans are installed on the last two floors; Influx - through framugues with a fixed discovery to ensure regulatory air exchange.

First, we will perform the calculation of the energy efficiency of this house on SNiP 23-02-2003, the requirements of which in terms of heat shields and the specific annual flow rate of heat for heating and ventilation are taken for basic values \u200b\u200b(Table 2, column 3), on the calculated values \u200b\u200bof the resistance of the heat transfer of the main structures : outer walls R PR o, art \u003d 3.13 m 2 · ° C / W; windows r o, ok \u003d 0.54 m 2 · ° C / W; Overlapping of a warm attic R PR O, Cher \u003d 4.12 m 2 · ° C / W; Social overlap over technical pulp Rve o, CCC \u003d 4.12 m 2 · ° C / W. According to the results of the calculation, the estimated specific annual consumption of thermal energy to heating and ventilation of the building was q h. y. DES. = 95,4 kWh · ch / m 2, which corresponds to the required SNiP 23-02-2003 - no more q h. y.req = 96 kWh / m 2, and in accordance with the order of MRR No. 161, the building may be assigned a normal class of energy efficiency " FROM».

Table 2. Results of calculating the specific annual heat consumption for heating
and ventilation (s) of an apartment building for various design options
Decisions of heat shields of fences and recovery of heating

Indicator	Requirements and calculation results
	SP 50-13330-2012	SNiP 23-02-2003	Resolution of the Russian Federation №18
			since 2011	since 2016	since 2020
Required specific annual heat consumption on OB,q h. y.reqkW ∙ ch / m 2	no norm	96	81,6	67,2	57,6
The reduced resistance to heat transfer, m 2 · ° C / W: R. Art R., walls area11414 m 2 R. OK R., non-residential windows (104 m 2) * R. OK R., windows of apartments (2270 m 2) * R. OK R., windows LLU (167 m 2) * R. dv. R., entrance doors (36 m 2) * R. ER R., overlaps under the erker (16 m 2) * R. Ch.P. R., attic floors (1151 m 2) * R. Pok R., LLO coatings (251 m 2) * R. C.P. R., socket floors (1313 m 2) * R. P.G. R., floors of the inlet soil (73 m 2) *
The transmission coefficientheat transferK. Tr., W / (m 2 · ° С)
Heat loss through external enclosing structuresfor the heating period of OP,Q. OGR year, MW · h
Heat loss with infiltration airfor OPQ. inf year, MW · h
Apartment population, m 2 total area per person
The specific amount of household waste,q. life, W / m 2
Household heat gain for the patient period,Q. life year, MW · h
Heat gain through windows from solar radiation,Q. ins year, MW · h
Estimated heat consumption of buildings on the heating period Q., MW · h
Settlement specific annual heat consumption on OB,q h. y. DES., kWh / m 2	115,5	95,4	78,2	62,9	53,8
Thermal power of the heating system,Q. from R, kw
Specific thermal power of the heating system,q. from R, kW / m 2
Attitude Q Year Otto Q Year Ot SNiP 23-02
Energy Efficiency class **	D.	FROM	IN	In +.	In ++.

* in brackets - the area of \u200b\u200boutdoor fences at home

** According to the order of the Ministry of Regional Development of Russia No. 161.

If we take the same initial data in the calculation of the updated SNiP 23-02 in the edition of Niizf (SP 50-13330-2012), and adopt the true value of the volume of heated building, referred to the area of \u200b\u200bheated floors, at a minimum, 35% higher than the area of \u200b\u200bapartments in house, then with the same heat consumption with the building built on SNiP 23-02-2003, at the building on the joint venture 50-13330-2012 specific annualthe heat consumption for heating will be:

q h. y. DES.\u003d Q year from / (1.35 · And general + floor) \u003d 1635 · 10 3 / (1.35 · 17142) \u003d 70.6 kWh / m 2.

Since the value q h. y. DES.\u003d 70.6 kWh / m 2 below q h. y.req\u003d 96 kWh / m 2 on (70,6-96) · 100/96 \u003d -26.5%, in accordance with paragraph 5.2 of the SP 50-13330-2012, it is recommended to reduce the resistance of the heat transfer of wall structures to R. , st \u003d 3.13 · 0.63 \u003d 1.97 m 2 · ° C / W; Incarious and base floors - 4.12 · 0.8 \u003d 3.3 m 2 · ° C / W, windows - 0.54 · 0.95 \u003d
\u003d 0.51 m 2 ° C / W, the remaining fencing remain unchanged, and the heat loss with infiltrating outer air, the heat absorbance from the internal sources and solar radiation and the efficiency of the control system of the heating system are continued.

Then the estimated annual consumption of thermal energy to heating and ventilation of the building according to the calculation results (column 2, Table 2) amounted to 1980 MW, and the specific consumption of SP 50-13330-2012 - q h. y. DES. .P.\u003d 1980 · 10 3 / (1.35 · 17142) \u003d 85.6 kWh / m 2, which is still below the required q h. y.req\u003d 96 kWh / m 2, and therefore the reduced parameters of thermal protection of buildings on the SP 50-13330-2012 are legitimate. In the dimension adopted in the joint venture 50-13330-2012, these values \u200b\u200bwill respectively:

q from. R\u003d 85.6 · 10 3 / (2.8 · 4943 · 24) \u003d
\u003d 0.257 W / (m 3 · ° С)

and q from. Tr.\u003d 96 · 10 3 / (2.8 · 4943 · 24) \u003d 0.29W / (M 3 · ° C).

In column 2 tab. 2 shows the true values \u200b\u200bof the specific consumption attributed to the area of \u200b\u200bthe apartments - q h. y. DES.\u003d 1980 · 10 3/17142 \u003d 115,5 kWh / m 2 and the corresponding energy efficiency class - lowered " D.". In the result, it turns out that updated in 2012 SNIP recommends an increase in the consumption of thermal energy to heating on (1980-1635) · 100/1635 \u003d 21% compared to the SNIP 2003 in effect. - what is the actualization then?

Justification for the achievement of the requirements of the Resolution 1) by increasing
Heat shoes buildings

Consider what results will lead to the exercise of the Moscow region according to the requirements of the Resolution 1) Increasing the energy efficiency of buildings by increasing the thermal protection of incomplete external fences by 15% compared with the requirements of SNiP 23-02-2003 (respectively, R PR O, Art \u003d 3.13 · 1.15 \u003d 3.6 m 2 · ° C / W, Pr o, Cher \u003d R PR O, CCC \u003d 4.12 · 1.15 \u003d 4.74 m 2 · ° C / W), transition to windows In apartments and built-in non-residential premises with the resistance of heat transfer R PR O, OK \u003d 0.8 m 2 · ° C / W (windows and balcony doors LLU remain the same) and connecting the heating system to thermal networks through an automated control unit (AUU) Instead of elevator or through automated ITP (z \u003d 0.9). There are also heat loss with infiltration outer air and heat gain from internal sources, and the heat gain with solar radiation is reduced due to the use of glasses with emission coating in the windows to increase their heat transfer resistance.

Estimated specific annual heat consumption for heating and ventilation of the building based on the results of the calculation (column 4, Table 2) amounted to q h. y. DES.= 78,2 kWh · b / m 2, which is lower than the required resolution 1) - q h. y.req= 81,6 kWh / m 2 and on -18% below the base value, which allows the building to be given a high class of energy efficiency " IN" If, instead of this progressive solution, the document rersigates the document, then the heat consumption of buildings for heating will increase compared to the already achieved by 115.5-78.2 \u003d 37.3 kW per each m 2 of the apartment or 37.3 · 100 / 78.2 \u003d 47.7%, almost 1.5 times. Accordingly, residents will pay for heating in homes built according to the updated SP 50.13330.2012, 1.5 times more than possible by the proposed solution.

Since 2016, it is supposed to increase the heat-stash of incomplete outdoor fences by another 15% compared with the requirements of SNiP 23-02-2003 (respectively, R Pr o, Art \u003d 3.13 · 1,3 \u003d 4.07 m 2 · ° C / W, R PR O, Cher \u003d R Pr o, the CCC \u003d 4.12 · 1,3 \u003d 5.35 m 2 · ° C / W, and, as shown in, it is still lower than normalized in the Scandinavian countries Studently, despite the fact that they have 1.5 times lower, they are 1.5 times lower than we have in the central region: the resistance of the heat transfer of the walls onto it is 6.67 m 2 · ° C / W, we have 4, 07 / 0.67 \u003d 6.07 m 2 · ° C / W); Go to windows in apartments and built-in non-residential premises with a reduced heat transfer resistance \u003d 1.0 m 2 · ° C / W, which is also not the limit. Therefore, the assertion of the author of the joint venture 50.13330.2012 that our proposed increase in the resistance of the heat transfer of external fences is superior to the norms of European countries.

In addition, in accordance with the requirements of Federal Law No. 261 "On Energy Saving", "apartment buildings, commissioned from January 1, 2012 after the construction, reconstruction, must be equipped with additional procedures for the metering of heat used", which experts are evaluated will allow, at least 10% to reduce heat consumption for heating (ξ \u003d 0.1 in the application formula (1)). Taking into account the inertia of the implementation of events, we took the implementation of this norm only since 2016.

Taking into account the above, the estimated specific annual consumption of thermal energy to heating and ventilation of the building based on the results of the calculation (column 5 Table 2) was 62,9 67,2 kWh / m 2 and 34% below the base value, which allows the building a high class of energy efficiency " In +." Thus, the requirements of the Resolution of the Government of Russia No. 18 on increasing the energy efficiency of apartment buildings by 15% now and by another 15% since 2016 compared with the SNIP 23-02-2003 in force since 2003, closed with the same increase in the heat shields of external unreold transparent Fences, transition to windows with heat transfer resistance of 0.8 and 1.0 m 2 · ° C / W and the use of optimal solutions for automatic control of heat transfer of heating system and taking into account the energy used.

It is interesting to note that the requirements of the Resolution No. 18 on increasing the energy efficiency of apartment buildings by only 40% from 2020, will not require additional energy saving activities, since this year it is assumed that the average norm of the total area of \u200b\u200bthe apartment per person will reach 25 m 2 (now Statistical data in Russia 22.5 m 2 / person, in European countries - 45, and in the United States and Canada - 70 m 2 / person). As a result, as calculations show (column 6 Table 2), by reducing the necessary air exchange in apartments due to less dense settlement, and according to the infiltration component of heat loss, despite some decrease in heat gain from internal sources (specific household waste decreased from 17 up to 15.6 W / m 2), the estimated specific annual consumption of thermal energy to heating and ventilation of the building was 53,8 kWh / m 2, which is lower than the required 1) - no more 57,6 kWh / m 2 and on -44% lower base

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2018-02-15

UDC 697.1. Using SP 50.13330.2012 "Thermal Protection of Buildings" in the design of public buildings P. V. Vinsky, and about. Chief of the Sector Ovkid OJSC MOSPROEKT-2 named after M. V. Stochina Features of determining the specific characterization of the thermal energy consumption for heating and ventilation of the building and calculating its specific ventilation characteristic in accordance with the actualized editorial board of SP 50 are shown. It is shown that discrepancies in taking into account the air exchange between its actual value and specific per 1 m 2 adopted in the SP 50 technique , leads to an overestimation of the class of energy conservation of the building. It is noted that the requirements of the joint venture 50 do not take into account the specifics of modern hermetic fillings of light boosters when calculating the infiltration component of the ventilation characteristics, and solutions to eliminate this problem are proposed. The disadvantages of the joint venture 50 in terms of the possibility of using the efficiency of recuperators and changes in the resistance of the window blocks during the heating period. The presentation is illustrated with numerical examples. Keywords:specific ventilation characteristic, air exchange, energy saving class, recuperator, translucent designs.

UDC 697.1. Using Set of Rules (SP) 50.13330.2012 "Thermal Performance of The Buildings" At the Design of Public BUILDINGS P. V. VINSKII., Acting Chief of the HVAC Section of "Mosproject-2 Named After M. V. Posokhin", Ltd. The Peculiarities of Determination of Specifi C Characteristics of Heat Consumption for Heating and Ventilation of the Building and Calculation of The SpeciFi C Ventilation Characteristics in Accordance with the Updated Version of the SP 50 Are Concerned. IT IS SHOWN THAT THE DIVERGENCE IN THE ACCOUNT OF AIR FL OW BETWEEN THE ACTUAL VALUE AND UNIT OF 1 M 2 TAKEN IN THE METHODOLOGY OF THE SP 50, LEADS TO AN OVERESTIMATION OF THE ENERGY CLASS OF THE BUILDING. IT IS NOTED THAT TAKEIREMENTS OF THE SP 50 DO NOT TAKE INTO ACCOUNT THE SPECIFI CS OF MODERN AIR-TIGHT WINDOW UNITS IN THE CALCULATION OF THE INFI LTRATION CALCUONENT OF THE INFI LTRATION CHARACTERS ARE PROPOSED. The Defi Ciencies of the Coeffi Cient of the Effi Ciency of Heat Exchangers and Cenes in The Resistance to Heat Transfer of Window Blocks During The Heating Period Are Identifi ED. The Presentation is illustrated by Numerical Examples. Keywords:specific Ventilation Characteristic, Air Flow, Energy Class, Heat Exchanger, Transparent Constructions.

The features of determining the specific characterization of the heating of thermal energy to heating and ventilation of the building and the calculation of its specific ventilation characteristic in accordance with the actualized editorial board of the joint venture 50. It is shown that the discrepancies in taking into account the air exchange between its actual value and the specific per 1 m2 adopted in the SP 50 technique, leads to an overestimation of the class of energy conservation of the building. It is noted that the requirements of the joint venture 50 do not take into account the specifics of modern hermetic fillings of light boosters when calculating the infiltration component of the ventilation characteristics, and solutions to eliminate this problem are proposed. The disadvantages of the joint venture 50 in terms of the possibility of using the efficiency of recuperators and changes in the resistance of the window blocks during the heating period. The presentation is illustrated with numerical examples.

With the release of the Russian Code of Rules (SP) 50.13330.2012 (updated editorial board 23-02-2003 "Thermal protection of buildings", hereinafter - SP 50) The approach has changed to determine the resisters of heat transfer of external enclosing structures and the specific characteristics of the thermal energy flow. The calculation of the data values \u200b\u200bis carried out by designer engineers in section 10.1 "Events to ensure compliance with the requirements of energy efficiency and requirements of equipment for buildings, buildings and structures of accounting devices of used energy resources" in accordance with the Decree of the Government of the Russian Federation of February 16, 2008 No. 87-PP "On The partitions of the project documentation and the requirements for their content. " Often to reduce pronunciation, this project is called in one word - "Energy Efficiency".

The estimated specific characteristic of the flow of thermal energy for heating and ventilation of the building q. From p [W / (m³ · ° C)] should be determined by the mandatory application of GP 50:

where k. VENT k. Lodge I. k. Running [W / (m³ · · ° C)] are respectively the specific ventilation characteristic of the building, the specific characteristics of household heat generations of the building and the specific characteristic of the heat gain in the building from solar radiation.

In this article, I would like to pay attention to the calculation of the specific ventilation characteristics of the building and express an opinion on its shortcomings on the example of public and administrative buildings. When determining k. Vent is used by the average multiplicity of the air exchange building for the heating period n. In [h -1], which is calculated on the total air exchange due to ventilation and infiltration by the formula (G.4):

In the draft subsection "Heating, ventilation and air conditioning, thermal networks" section 5 "Information about engineering equipment, on networks of engineering and technical support, a list of engineering and technical measures, the content of technological solutions" The air exchange is determined from the conditions for providing the parameters of the air: according to the regulatory Air exchange per person, according to regulatory dots, according to regulatory documents, on assignments to the assimilation of harmful gas divisions or heat dissipation from adjacent sections (TX, EO, SS, ITP).

But for the amount of air intake air in mechanical ventilation in the Energy Efficiency section, it is not applied by the actual value, but normalized depending on the designation of the building for 1 m² of the calculated area. In this case, the discrepancy between the two projects may occur, since in the first case the air exchange will be greater than in the second. Simple example, it may be that the Corridors are not included in the calculated area, which serves a difood air to compensate for the exhaust from the premises of the bathrooms and shower. Another example: inlet ventilation chambers, which are not included in the calculated area, but they are supplied to the air to prevent the formation of mold.

For clarity, it is possible to bring the cost of supply air, calculated for the administrative building (address: Moscow, Cao, ul. Calanechevskaya, Vl. 43, p. 1-1a), which received a positive conclusion of the MEE. According to the section "s", the total consumption of supply air is 142,665 m³ / h, and according to the section "Energy Efficiency" - 58,240 m³ / h.

Diffuses through the air, and, accordingly, on the cost of heat make up almost 2.5 times in the greatest direction in the first case!

Why SP 50 does not invite us to apply actual air costs to calculate when they are already defined, it seems incomprehensible. So, this circumstance leads to an underestimated value of the specific ventilation characteristics of the building, and it, in turn, to the overestimated class of energy saving, up to "very high". But in this case, a very high class of energy saving can be assigned only under the condition of the mandatory execution of paragraph 10.5 SP 50, otherwise the Class C + is assigned. Thus, item 10.5 SP 50 gives us the opportunity to protect yourself and in the energy passport specify the energy saving class by two levels below.

It would be reasonable to calculate the specific characterization of the consumption of thermal energy of the building to exclude from the "Energy Efficiency" section and include it in the subsection "Heating, ventilation and air conditioning, thermal networks", that is, that this calculation regulates the joint venture 60.13330.2016 (updated editorial board SNiP 41-01 -2003 "Heating, ventilation and air conditioning", below - SP 60).

Now I would like to talk about the infiltration component in the formula (G.4) of the joint venture 50. Modern energy-efficient translucent constructions are usually very sealed, have low breathability, and speech about infiltration through them, as it was in Soviet years, no longer goes.

It should be noted that, depending on the functional purpose of the building, translucent structures can be deaf and even bulletproof, and therefore infiltration in the volume that we offer to consider the joint venture 50 will actually be absent. For example, you can bring the project of a special purpose building, for which in order to protect information in a technical task, it was stated that all translucent designs should be deaf, without the possibility of natural ventilation, but, despite this fact, infiltration in the calculation was taken into account.

Therefore, it is possible to formulate proposals for the solution of this issue:

1. If the translucent designs are deaf, and there is no possibility of natural ventilation, then the number of infiltrant air into the room of a public building through the looseness of the fillings of the outlook (believing that they are all on the winding side) should not be considered, and only the influence of the mechanical ventilation system is considered.

2. With the possibility of natural ventilation when the mechanical ventilation system is disabled and at the resistance values, the breather of translucent structures confirmed by certification test protocols providing infiltration through looseness, the calculation of the calculation according to the method described in paragraphs G3 and G4 SP 50.

3. When the ventilation valve device in translucent structures to ensure permanent air intake to the room, it is necessary to receive consumption over the valve over the calculated value.

In addition, it is necessary to note that the new edition of the SP 50 was introduced the efficiency rate of the recovery k. The EF, which is currently taken equal to zero, and, if literally perceive its definition, it does not depend on the availability of ventilation systems with the possibility of heat recovery. Direct-flow ventilation system, supply-exhaust system with a rotary heat exchanger, with a plate heat exchanger or an intermediate coolant - for all these systems it is required to be considered equal to zero.

It can only be admitted from zero if the average air permeability of public buildings (with closed supply and exhaust ventilation holes) provides during testing air exchange n. 50 ≤ 2 h -1 (with a pressure difference of 50 pa outer and internal air and when ventilated with mechanical motivation). With such a interpretation, it turns out to be incomprehensible, for which this lowering coefficient was introduced, if it is impossible to use it. Apparently, the fact is that when issuing an updated editorial board of SP 50, the text of paragraph containing explanations for the magnitude of the actual formulas (G.2) and (G.3) k. EF, was mistakenly postponed from the previous version (SNiP 23-02-2003), where he treated a completely different parameter concerning natural ventilation in residential buildings.

At the same time, "unacceptable" k. EF can lead to a significant understatement of the class of energy saving of buildings, including in some cases and residential.

We still note that the new version of SP 50 explicitly does not take into account the equipment of the building with water air curtains, which serve to prevent the "breaking" of cold air into the building. Warm consumption for heat supply also does not appear anywhere. This circumstance can also lead to an understated value of the specific characterization of the consumption of thermal energy of the building.

The additional disadvantage of the joint venture 50 is also the fact that the heat transfer resistance of translucent structures is taken using certification test protocols to equal value measured in accordance with GOST 26602.1-99 "Window and door blocks. Methods for determining heat transfer resistance "at the estimated temperature of the outer air, which corresponds to the temperature of the coldest five days t. N5, but not higher than -20 ° C, and energy consumption and energy efficiency estimate is performed at an average temperature for the heating period. So, in work during the experiment, the authors found that at temperatures t. N5 for Moscow equal to -28 ° C (at the time of the edition of SNiP 23-01-99 * "Construction climatology" from 2004), and at an outdoor air temperature of -10 ° C corresponding to the average temperature of January-February, the heat transfer resistance of the window The block differ by 12-18%. In the publication, the authors showed that for a number of constructs of filling lights, such a discrepancy may be higher. In view of this circumstance, there is a noticeable error in the calculations of the heat of the priority, and the "not Losses through incomplete fences. This is also evidenced by the data of a number of foreign authors, for example,.

I would also like to note that when calculating the specific characteristic of the heat gain in the building from solar radiation k. Delighted [W / (m³ · ° C)], determined by the formula (G.7) \u200b\u200bof the joint venture 50, the question arises where to take the values \u200b\u200bof the average for the heating period of solar radiation I. 1 , I. 2 , I. 3 I. I. 4 [MJ / (m² · year)] under valid conditions of clouds falling on vertical surfaces oriented in four building facades, respectively.

These values \u200b\u200bof the SP 50 invites us to determine "according to the method of the arrangement of the rules", although, in turn, it does not contain itself. If we consider the set of rules 131.13330.2012 (updated edition of SNiP 23-01-99 * "Construction climatology", then - SP 131), then in Table. 9.1 provides total solar radiation (straight and scattered) per vertical surface, but with a cloudless sky and for each calendar month, that is, these data cannot be used directly.

The only document in which there is a necessary information for the city of Moscow is the Canceled MGSN 2.01-99 "Energy Saving in Buildings" (Table 3.5). But there are values \u200b\u200bgiven in dimension [kWh / m²], and for the method of the joint venture 50, it is required [MJ / (m² · year)], therefore, they must be multiplied by a translated coefficient equal to 3.6. Perhaps it would be advisable to postpone the specified MHSN table in SP 50 with the addition of similar data for other cities or adjust the table. 9.1 SP 131 so that it contains information about solar radiation under valid cloud conditions as a whole for the heating period, or give an indication in the comments to the formula (G.8) of the joint venture 50 according to the existing SP 131 data with a downward coefficient for the influence of cloudiness.

I would also like to pay attention to the obvious disadvantage of the SP 60. Unfortunately, in this document it is clearly not clearly indicated that for calculating the heat loss of the premises of the building should be taken by the actual values \u200b\u200bof the heat transfer of external enclosing structures calculated according to the methods of SP 50 and SP 230.1325800.2015 Designs enclosing buildings. Characteristics of heat engineering inhomogeneities ", except paragraph 6.2.4. This clause presents the only reference to the joint venture 50, and only with respect to the calculation of the resistance of the inner walls separating the unheated staircase from residential and other premises. Because of this, the design engineer "OB" often uses the specified normative space in "its" SP 60 and takes to calculate simply regulatory (more precisely - basic) values \u200b\u200bof heat transfer values \u200b\u200bof external fences in Table. 3 SP 50, thereby increasing or understating the real heat consumption for the heating system.

Therefore, in our opinion, it would be advisable to include in the joint venture 60 reference to paragraph 5.4 SP 50 for its unconditional performance, especially since this item of the Government Decree of December 26, 2014 No. 1521-PP is assigned to such as the use of which Compliance with the requirements of the technical regulations on the security of buildings and structures are required. In this case, there may be a harmonization between the two partitions of the project and the regulatory documents themselves, and the development results of the Energy Efficiency section would be the initial data for the design of the heating system.

Thus, the joint venture 50 and SP 60 need a discussion and further adjustment.

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Minister of Regional Development of the Russian Federation

Slyunyeva I.N.

From various organizations to our institute, requests for "notification about the beginning of a public discussion of the draft Code of the Rules" are coming (hereinafter notice). This notification states that a draft change No. 1 to SP 50.133330.2012 "SNiP 23-02-2003 heat sewn of buildings has been developed. As developers, the Federal Agency for Construction and Housing and Communal Services (Gosstroy), OOO "Research and Research Institute of Training, Civil and Residential Buildings" (ORFography Saved from the text of the notification), 10 days after the placement of LLC "............" was seized from the number of add-on developers.

Niizf Raasn Federal State Budgetary Institution A more than five-purpose-smali years is the author and developer of the head of the SNIP "Construction Heat Engineering", which in 2003 was renamed SNiP 23-02-2003 "Thermal Protection of Buildings". On the basis of Niizf Razn there was a unique team of specialists, capable of comprehensively considering the normalization of thermal protection of buildings. Domestic rules on thermal protection of buildings were always advanced in the world and were appreciated by Western experts. For the first time in the world, in the USSR in 1979, the norms were imposed on accounting for the effect of heat-conducting inclusions ("cold bridges") on heat loss through fencing structures (most European countries and now did not fully solve this task).

Since 2010, Niizf Raasn specialists with the involvement of leading scientists of other institutions carried out the actualization of SNiP 23-02-2003. The scientific leader of the work on the document is the Corresponding Member of Raasn, Professor, Doctor of Technical Sciences Gagarin V.G. Actualization was carried out with a wide public discussion of the document. It should be noted that this SNiP covers the interests of a large number of building organizations and manufacturers - manufacturers of thermal insulation materials, as well as house-building factory products throughout the Russian Federation. In this regard, weighted and compromise decisions were made on the main issues, taking into account state policy in the field of energy saving, utilities and construction. The draft document was reported more than 30 specialized conferences, more than 20 publications in specialized journals were made in the updated editorial office. The final discussion of the draft document took place on November 2, 2011 in NIC Construction (a brief report on this discussion was placed in two central journals), as well as December 21, 2011 in the Ministry of Regional Development. The draft revision received 338 comments and proposals that were fully or partially taken into account. The updated editorial board 23-02-2003 was approved by order of the Minister of Regional Development No. 265 June 30, 2012. Currently, the document is in the set.

And now, without notifying the developer of the actualized editorial office, a change was developed by a change No. 1 to this SNiP. The developer of this change No. 1 is unknown to anyone, its site is practically absent and change No. 1 is not posted on the site. There is no data nor its leaders and specialists who are the authors of the change. In addition, it is not known to be based on the proposed changes, since the prerequisites are not known, their justifying. The notification of the start of public discussion is printed with errors and is not officially sent. Change No. 1 implies a significant change in SNiP, up to its name. And the main thing it did not pass the procedure of public discussion, which should be held such a document and which the source document passed.

The text of the change number 1, which is contained in the notice of the beginning of a public occupation, is clarified and unprofessional. It contains errors, both essentially and in essence.

First of all, the incorrectly proposed name of the document "Requirements of Energy Efficiency. Thermal protection of buildings, buildings and structures "by virtue of the following circumstances:

1. The proposed addition to the name "Energy Efficiency Requirements" does not comply with the Federal Law of the Russian Federation of November 23, 2009 No. 261-FZ "On Energy Saving and to Enhance Energy Efficiency and Amendments to Certain Legislative Acts of the Russian Federation". According to paragraph 4 of Article 2 of this Law "Energy efficiency - characteristics reflecting the ratio of useful effect on the use of energy resources to the costs of energy resources produced in order to obtain such an effect, in relation to products, a technological process, a legal entity, an individual entrepreneur." This concept is economic. Energy efficiency has nothing to do with the requirements proposed in Change No. 1, which require reduction in energy consumption. In the process of discussion of the draft SP 50.13330.2012 "Snip 23-02-2003 Thermal protection of buildings" The concept of energy efficiency was removed from the document and from applications to it.

2. In the document proposed for a change, there are no issues of thermal protection of buildings and structures, and there is a thermal protection of only buildings. The fact is that such structures, such as bridges, do not need to be in thermal protection, and those structures that need heat protection, such as pipelines, are pro-expanded in accordance with special joint ventures, which contain requirements for their thermal protection and methods for its calculation and design. These objects are designed according to other regulatory documents by other specialists, and combine the norms and practices of the design of the heat-displacement of these objects in one document, at least it is inappropriate. In addition, the principle of harmonization with similar Ev-Ropy regulations is violated, in which the issues of thermal protection of structures are also not considered.

Regarding new requirements, you can note the following.

1. Requirements in the proposed change No. 1 to the "normalized specific characterization of the flow of thermal energy for heating and ventilation of buildings" are not substantiated by neither theo-retic calculations, or by experimental construction. They will lead to an increase in the cost of construction and the non-fulfillment of the Decree of the President of the Russian Federation dated May 7, 2012 "On measures to provide citizens of the Russian Federation accessible and comfortable housing and improving the quality of housing and communal services", which requires "a decrease in the cost of one square meter of housing by 20 percent ... "

2. New requirements will lead to an increase in the use of expensive heat-insulating materials with unverified durability, as well as to a sharp decrease in the use of new effective building materials, which have proven themselves in the practice of construction, such as products from porous ceramics, autoclave aerated concrete, etc. The case is complicated by the fact that Foreign investors have invested funds in the development of the production of these materials, and an artificial decline in their use in construction will undermine the confidence in our country by foreign investors. From this point of view, the requirements in the proposed change No. 1 contradict the decree of the President of the Russian Federation in part "Preventing and suppressing monopolistic activities and unfair competition of economic entities in the areas of housing and production of building materials".

3. Introduction to the technical regulatory document of the requirements written by the time of administration (from 2013, since 2016 and from 2020) is not consistent with common sense. If the authors know how to ensure these requirements since 2016, then it is necessary to submit substantiations and introduce them immediately. If the methods of ensuring these requirements are unknown, then they do not need to declare them before, when technical solutions will still be found to meet these requirements. Such requirements can be introduced by the orders of the ministry, and not in technical norms without specifying ways to achieve them. If we are unknown ways to achieve requirements, then cases of falsification of their implementation will be taken, which will lead to paper energy and corruption to "paper" savings.

The edition of the Table 15 - "Classes of Energy Saving Residential and Public Buildings", presented in the draft Changes No. 1 deteriorated compared to Table 15 approved by the editorial office of the actualized document. In the approved document, the borders of the energy saving classes coincided with the data specified in the Decree of the Government of the Russian Federation of January 25, 2011 No. 18. In the submitted change No. 1, these borders are random ha-rakter and do not talk about anything, including not comply with the data of the specified decree and the requirements given in the change itself 1.

Text Analysis Change No. 1 to SP 50.13330.2012 "SNiP 23-02-2003 Thermal sewn of buildings", as well as related circumstances, shows that the change is drawn up unprofessional, and its discussion passes with rude violations of the established procedure. Given the difficult consequences for the construction industry of the country, which will be caused by this change No. 1, should be considered an economic diversion attempt to be administered. In this regard, we consider it necessary to reject the proposed changes No. 1 to the updated editorial board of SP 50.13330.2012 "Snip 23-02-2003" Thermal protection of buildings ".

Director Niizf Rasn,

professor, Doctor of Technical Sciences Shubin I.L.