Cabinet of Ministers Regulations No. 120 in 2011 (15 February. No 10 4) amendments to the Cabinet of Ministers of 13 January 2009 the Regulation No 39 "building energy efficiency calculation method" Issued in accordance with the law of the energy performance of buildings on the second part of article 9 do cabinet 2009 January 13, Regulation No 39 "building energy efficiency calculation method" (Latvian journal, 2009, no. 18) the following amendments: 1. Add to paragraph 1, with the second and third sentence as follows: "method used in drawing up the energy balance of the building level. Creating energy balance technical system level, as well as if the calculated energy required for heating of less than 50 kWh to calculate the area of a square metre a year, carried out a detailed calculation in accordance with the standard EN ISO 13790: EN 2009 "energy performance of buildings. Space heating and cooling energy calculation "(hereinafter LVS EN ISO 13790:2009)."
2. Replace paragraph 6, second sentence, the word "areas" with the word "elements".
3. Add to paragraph 10 in the second sentence by the following: "If the preceding period accounting energonesēj has not been carried out, the buildings measured energy efficiency assessment cannot be carried out."
4. Replace paragraph 12, the words "to weather extended correction" with the words "adjustment of energy consumption due to weather".
5. Make a point 20 as follows: "20. the energy consumed shall be determined by multiplying the quantity in the waste liquid fuels with a gross calorific value and efficiency of the boiler."
6. Express 22 the following: "22. delivered energy consumed shall be determined by multiplying the quantity in the solid fuel used by its gross calorific value and efficiency of the boiler."
7. Express 28 the following: "28. Year the calculated energy required heating and cooling Qkop, apr is calculated using the formula 3 and adding the separate heating and cooling energy, calculated by using the formula 4 and 5: Qkop, apr, apr + Qdz, Qapk = apr (3): Qapk, apr = HK (T1-T2) η t-DAC (Asol Esol + Qiek) (4), Qdz, apr = (Asol Esol + Qiek), η or HK (T1-T2) t (5) where: Qapk, apr-energy required for heating (Wh);
Qdz, apr – cooling requires energy (Wh);
HK-building the overall heat loss factor, which is determined in accordance with the provisions of paragraph 120 (W/K);
t-assessment period, one full heating or cooling (tapk) (tdz) season (hours);
T1-the average rating of the setpoint temperature (heating or cooling) period (oC);
T2 – the average temperature of the calculation period ārgais (c);
η DAC-benefit ratio for heating use in accordance with the provisions of paragraph 114 or standard LVS EN ISO 13790:2009;
η-benefit of using either ratio cooling under this provision or paragraph 116 standard LVS EN ISO 13790:2009;
Asol, building useful solar energy savācoš area (m2);
ESOL-solar radiation assessment period t to the Asol (Wh/m2);
Qiek-all the benefits of building internal evaluation period t (who). "
8. Make the following paragraph 33:33. Degree in "number of days is determined using the following formula: GDD1 = Dnapk 33.1. (T1-T2) (7);
33.2. GDD = Dapk (T1-T3) (8): GDD1 – the regulatory degree days;
GDD-degree days evaluation period;
Dnapk-the number of heating days, regulations under the LBN 003-01 "Būvklimatoloģij";
Dapk – heating days evaluation period;
T1-indoor temperature (° c) during the period of the evaluation;
T2-the average temperature in accordance with ārgais LBN 003-01 "Būvklimatoloģij" (oC);
T3 – actual average ārgais temperature (° c) during the period of assessment. "
9. Replace paragraph 43, first sentence, the words "heat capacity" with the words "heat capacity".
10. Express 46 as follows: "46. Heating and cooling needed for calculation of energy down the building. The limits of all the buildings, building būvelement, which separates the conditioned spaces from the external environment (air, soil or water) and the adjacent buildings or not conditioned spaces. "
11. Put 48 as follows: "48. If the building is divided into several zones, building heating and cooling energy is calculated separately for each zone. The heat flow between the zones take into account, if necessary recommended energy efficiency measures for the evaluation or additional results. "
12. Express 30.5. subparagraph by the following: "49.1. the setpoint temperature heated premises do not differ by more than 4 ° c;".
13. Express 30.8. subparagraph by the following: "30.8. building at least 80 percent of the total floor ventilation air quantity (m3) rooms on the floor area (m2) per unit of time differs by more than four times."
14. Express and 5.3.5 subsection 5.3.4. the following wording: "More Zone 5.3.4. calculation is 53. If the building is divided into a number of zones and the heat flow between the zones shall not be taken into account (calculation with a tied zones), calculating, not be taken into account in any type of heat transmission (e.g., air motion). In this case, the calculations are made separately for each zone under one area calculation procedure.
54. some areas, which have a combined heating and cooling system, heating and cooling energy is required to separate the area calculated the amount of energy required. Separate zones, which are not common in the heating and cooling system, energy consumption of the building is a single zone calculated the amount of energy used.
55. If the building is divided into several areas and take into account the heat flow between the zones, then take into account any type of heat transmission (air movement) and performs the calculation in accordance with EN ISO 13790: EN 2009 B.
5.3.5. the calculation of the detection area 56. Floor area, which is located in the building are air-conditioned building floor area Aapr is calculated. If the building is divided into zones, zone of all conditioned floor area calculation amount must be equal to the all the buildings of the conditioned room floor area calculations.
57. in the area of the Aapr is calculated including: 57.1. all conditioned space;
57.2. not conditioned space area, where they were tied with the conditioned spaces and they are maintained in the internal microclimate (such as inner halls, passageways, corridors, stairwells).

58. the calculation area does not include premises not intended to maintain internal space temperature (e.g. in the cellar, heated attics, garages). Calculate the area of heating and cooling season can be determined separately. "
15. Express 5.4.1. the following subheading: "5.4.1. Calculation and determination of the duration of seasonal heating and cooling 59. Heating and cooling calculation is performed in the following order: 59.1. determination of the duration of the season;
59.2. the necessary energy calculation.
59.3. calculation the possible repetition associated with building and system interaction, or additional information is received.
60. the calculation of the length of the heating season tapk shall be determined in accordance with the LBN 003-01 "Būvklimatoloģij".
61. The actual length of the heating season is determined according to the number of hours worked for the season when the system in question (for example, pumps, fans). It shall be based on at least one month for the measurements.
62. the duration of the heating season uses the calculation model validation in accordance with the provisions of this subchapter 6.2.
63. The actual cooling season duration is determined according to the number of hours worked for the season when the system in question (for example, pumps, fans). It shall be based on at least one month for the measurements.
64. the calculation of the length of the cooling season tapk determined using data on the actual length of the cooling season. "
16. Make 65. paragraph by the following: "65. each building in the area of heating energy for each calculation period (month or season) is determined using the following formula (note that Qapk > = 0): Qapk, n = Qapk, z-Qapk, JMC, ieg η × lit (13), which (for each building and each month or season): Qapk, n-building necessary for heating energy (Wh);
Qapk, z is the total heat loss for heating shall be determined in accordance with the provisions of paragraph 68 (who);
Qapk, ieg-total heat heating benefits shall be determined in accordance with the provisions of paragraph 69 (who);
η DAC, ieg-thermal benefits of using factor shall be determined in accordance with the provisions of this subchapter. "5.9.2.
17. Make 67., 68 and 69 of the following paragraph: "67. Each zone of the building cooling energy required for each calculation period (month or season) is determined using the following formula (note that Qdz > = 0): Qdz, n = Qdz, ieg-η, z × z Qdz, or (14) (for each building and each month or season): Qdz, n-building cooling requires energy (Wh);
Qdz, z is the total heat loss in cooling, determined in accordance with the provisions of paragraph 68 (who);
Qdz, ieg-total heat gain for cooling, determined in accordance with the provisions of paragraph 69 (who);
dz, z-η heat loss factor of the use shall be determined in accordance with the provisions of this subsection 5.9.3.
68. The total heat loss in buildings area calculation period: 68.1. heating Qapk, z = Qapk, pr + Qapk, ve (15);
68.2. cooling Qdz, z = Qdz, pr + Qdz, ve (16) (for each building and each month or season): Qapk, z is the total heat loss for heating (Wh);
Qdz, z is the total heat loss in cooling (who);
Qapk, pr-total heat loss for heating the transmission shall be determined in accordance with the provisions of this subchapter 5.5 (who);
Qdz, pr-total heat loss in cooling the transmission shall be determined in accordance with the provisions of this subchapter 5.5 (who);
Qapk, ve-total heat loss for heating with ventilation, shall be determined in accordance with the provisions of this subchapter 5.6 (who);
Qdz, ve-total heat loss in cooling the ventilation shall be determined in accordance with the provisions of this subchapter 5.6 (Wh).
69. The total heat gain of building area calculation period: 69.1. heating Qapk = Qiek + Qsol, ieg (17);
EB 69.2. cooling Qdz = Qiek + Qsol, ieg (18), (for each building and each month or season): Qapk, ieg-total benefits of heat for heating (Wh);
Qdz, ieg-total benefits of heat for cooling (who);
Qiek-internal heat gains calculation period, the amount determined in accordance with the provisions of this subchapter 5.7 (who);
Qsol-solar heat gain calculation period, the amount determined in accordance with the provisions of subsection 5.8 (who). "
18. Express 5.5 and 5.6 of the following subsection: "5.5. Thermal transmission losses using a steady 70 method, the total heat loss with transmission calculation each month or season and for each zone by using the following formula: 70.1. heating Qapk, pr = 1990s k {HT, k × (T1-T2, DAC, k)} × tapk (19);
70.2. cooling Qdz, pr = 1990s k {HT, k × (T1, T2, or-k)} × (20), where tdz (each building and each calculation period): Qapk, pr-total heat transmission losses for heating (Wh);
Qdz, pr-the total loss of heat transmission in cooling (who);
HT, k – building heat loss through the transmission coefficient of the element k to the next room, the environment or area with temperature T2, k shall be determined in accordance with this rule 71 (W/K);
T1, DAC-part of a building or the heating setpoint temperature shall be determined in accordance with the provisions of subdivision (c) 5.10;
T1, or – of a building or part of the cooling setpoint temperature shall be determined in accordance with the provisions of subdivision (c) 5.10;
T2, k-temperature element k next to the space, the environment or the area, determined in accordance with the provisions of paragraph 72 (c);
tapk-duration of the period of calculation for heating (h);
tdz — calculate the period length for cooling (h).
71. the transmission of heat loss coefficient k HT, element k shall be determined in accordance with Latvian et seq of LBN 002-01 "delimiting" construction siltumtehnik (approved by Cabinet of Ministers of 27 November 2001, regulations no 495 "rules for the Latvian et seq of LBN 002-01" building construction siltumtehnik "delimiting") (hereinafter referred to as the LBN 002-01).
72. Side room, external temperature T2, or k value determined by the following situations: 72.1. heat transmission to the external environment-temperature T2, k vērtībair external temperature value;
72.2. heat transmission to the adjacent kondicionētaj areas – not to the temperature T2, k value is near room temperature or external temperature value, if used in the calculation of the adjustment factor that reduces the heat transmission coefficient of temperature difference;
72.3. heat transmission to the next solar zone of influence (such as the glazed Loggia, terrace, Sun garden) – calculation of heat transmission as the adjacent kondicionētaj not spaces. The impact of solar radiation on the impact area of the Sun the temperature of the room is taken into account in calculating heat gain;
72.4. calculation with linked areas, heat transmission to the adjacent kondicionētaj areas – temperature T2, k value is adjacent to the temperature value of the area;

72.5. calculation with a linked areas – heat transmission with other kondicionētaj zones shall not be taken into account;
heat transmission through a 72.6 at. soil-temperature T2, k value of external temperature value, the calculation using the customization factor that reduces the heat transmission coefficient of temperature difference and determined in accordance with the standard EN ISO 2008 EN 13789: "thermal characteristics of the building. Heat transition and space airing generated heat exchange coefficient. The methodology for calculating "(hereinafter LVS EN ISO 13789:2008);
72.7. heat transmission to the adjacent buildings-temperature T2, k value is next to the building's indoor temperature on the basis of the building next to the appropriate data and use;
72.8. heat transmission thermal bridges – calculations carried out in accordance with standard EN ISO 13790: GES 2009.5.6 heat loss with ventilation 73. Overall heat loss with ventilation of conditioned floor area is calculated for each month or season and for each zone by using the following formula: 73.1. heating Qapk, ve = 1990s k {ft HVE, k (T1 – T2, delivery, DAC)} × tapk (21);
73.2. cooling Qdz, ve = 1990s k {ft HVE, k (T1,-T2, or delivery)} × (22), where tdz (each building zone z and for each calculation period): Qapk, ve – the total heat flow with ventilation heating season (who);
Qdz, ve – the total heat flow with ventilation cooling season (who);
FT-life part of the calculation period (full time, ft = 1);
HVE, k – coefficient of heat transmission with air flow ventilation, element k entering an area with delivery temperature T2, delivery, k shall be determined in accordance with the provisions of paragraph 74 (W/K);
T1, DAC, of a building or area heating setpoint temperature shall be determined in accordance with the provisions of subdivision (c) 5.10;
T1, or – of a building or zone cooling setpoint temperature shall be determined in accordance with the provisions of subdivision (c) 5.10;
T2, delivery – element k air supply temperature, including buildings or buildings with ventilation or infiltration of the zone shall be determined in accordance with the provisions of paragraph 74 (c);
tapk-duration of the period of calculation for heating (h);
tdz — calculate the period length for cooling (h).
74. the total ventilation heat loss coefficient, k with HVE air flow ventilation element k values, or the values of flow qve, k comply with appropriate ventilation system standards EN 15242:2007 "EN building ventilation. Calculation method of air flow (including caursūc) determination in buildings "(EN 15242:2007, EN) and LVS EN 15241:2007" building ventilation. Methods to calculate the ventilation and caursūc of energy loss caused by commercial buildings "(hereinafter EN EN 15241:2007). Individual air supply temperature T2 k, delivery, k value assumes the following: 74.1. ventilation with air infiltration from the external environment, the delivery temperature T2, delivery, k value is the value of the external temperature;
74.2. ventilation with air infiltration from neighbouring kondicionētaj areas or not a porch, the delivery temperature T2, delivery, k value of external temperature value. The impact of solar radiation in addition to the impact of the Sun the temperature is taken into account in calculating heat gain;
46.2. the calculation of ventilation of the States area, which includes the air infiltration from neighbouring kondicionētaj areas, the delivery temperature T2, delivery, k value is the next value in the temperature of the area;
74.4. mechanical ventilation supply temperature T2, delivery, k value is the air delivery temperature value, the air exits from the central air handling equipment and entering a building or building zones, determined in accordance with the standards EN EN EN EN 15242:2007 and 15241:2007;
46.3. If using a centralized piesildīšan or piedzesēšan and energy piesildīšan or to piedzesēšan is calculated separately, the delivery temperature is the temperature at central piesildīšan or piedzesēšan;
74.6. heat recovery in the ārgais calculation temperature T2 change with supply air temperature, which is obtained in accordance with the standards EN EN 15241: EN EN 15242:2007 and 2007.75. Total ventilation heat loss coefficient for each month or season and each heating or cooling zone is calculated using the following formula: k = ρac of HVE, qve, k, (23) where: HVE, k – coefficient of heat transmission with air flow ventilation element k, entering the area with the delivery temperature T2, delivery, k shall be determined in accordance with the provisions of paragraph 74 (W/K);
qve, k, environment – air flow element k time average flow rate shall be determined in accordance with the provisions of paragraph 76 (m3/h);
ρac-air volume = 0.34 for calorific value (Wh/(m3xoC));
k-stands for each of the applicable air flow elements (such as mechanical ventilation, natural ventilation, air caursūc).
76. Air flow element k time average flow level is calculated using the following formula: qve, k, t, k = fv, qve, k (231): qve, k – air flow element k time average flow rate shall be determined in accordance with the standards EN EN 15241: EN EN 15242:2007 and 2007 (m3/h);
FV, t, k – air flow element k the part, determined by the same standard as qve, k. "
19. Make 79. paragraph by the following: "79. According to the uniform method of heat gains from internal sources in a given area of the building in a given month or season is calculated using the following formula: (24): Qiek – internal heat gains amount to a certain month or season, heating and cooling down the individual (who);
BL-reducing factor next to the conditioned area with no internal heat source l shall be determined in accordance with the standard EN EN ISO 13789:2008 (if the heat source l capacity does not affect the calculation result, bl = 1);
Φiek, k – the average heat flow of the internal heat source (k) the calculation period (month or season), determined in accordance with the provisions of paragraph 82 (W);
Φiek, no, l – the average heat flow of the internal heat source l adjacent non air-conditioned room calculation period (month or season), determined in accordance with the provisions of paragraph 82 (W);
t-specific month or season's duration shall be determined in accordance with the provisions of this subchapter 5.4.1 (h). "
20. Replace paragraph 81, the words and figures "according to LVS EN ISO 13790:2008" with the words and figures "in accordance with the standard EN ISO EN 13789:2008".
21. Make 82 as follows: "82. heat gains from internal heat sources in a given building or building area is calculated for each hour, using the following formula:

Φiek = Φiek, Φiek + Φiek + an, passenger, Φiek, apg + w + ADzV + Φiek, Φiek, proc (26): Φiek – heat gains (or Φiek, Φiek k no, l) the amount of the internal heat source stream (W);
Φiek, population – heat flow of the population, shall be determined in accordance with this rule 84 (W);
Φiek, passenger-heat flow device shall be determined in accordance with the provisions of paragraph 85 (W);
Φiek, apg-heat flow from the lighting shall be determined in accordance with the provisions of paragraph 86 (W);
Φiek, w-heat flow from a hot water system, shall be determined in accordance with the provisions of paragraph 88 (W);
Φiek, ADzV-heat flow from the heating, air conditioning and ventilation systems shall be determined in accordance with the provisions of paragraph 90 (W);
Φiek, proc-heat flow of processes and objects, shall be determined in accordance with the provisions of paragraph (W) 94. "
22. Make 84 and 85 as follows: "84. Metabolic heat from the population, population Φiek for each building and each calculation period shall be determined in accordance with the provisions of the annex or calculated using the following formula: Φiek, population = Aapr fiedz qiedz (27), where:-the part time fiedz when residents in the building;
qiedz-specific heat input from citizens to the calculated building area (W/m2);
Aapr-calculates area, determined in accordance with the provisions of subsection 5.3.5 (m2).
85. the ambient heat from appliances, passenger Φiek for each building and each calculation period shall be determined in accordance with the provisions of the annex or calculated using the following formula: Φiek, dev = fier Aapr (28), which qier: Fiera-time part when the device works;
qier – specific heat input of the devices to the calculated building area (W/m2);
Aapr-calculates area, determined in accordance with the provisions of subsection 5.3.5 (m2) ".
23. Make 86.1. subparagraph by the following: "86.1. heat flux of the luminaire, which is calculated as part of the lighting systems, energy consumed. The energy consumed by the part that is less than 1, if the suction ventilation allows heat discharged directly from luminaries; ".
24. in paragraph 87, the following expression: "87. heat from the lights lighting systems shall be calculated in accordance with the standard EN EN 15193:2008" energy efficiency of buildings. The energy requirements for lighting "(hereinafter EN EN 15193:2008). The flow of heat from other lighting elements calculated taking into account the function of the building, lighting, usage and calculated purpose. "
25. the express 94. paragraph by the following: "94. heat of process and subjects or on Φiek, proc consists of heat from certain processes in the relevant area or on the building and (or) of the items placed in the building area. If the surface temperature of the heat source is close to the room temperature, the heat actually transferred the quantity depends on the heat source and ārgais temperature difference. The following is added to the heat internal heat gains, but the heat transfer added to the heat transmission losses in accordance with this provision, subsection 5.5. "
26. Express 97. the designation "Blu" in paragraph by the following: "bl-reducing factor next to the conditioned area with no internal heat source l shall be determined in accordance with the standard EN ISO 13790: EN 2009;".
27. Express in paragraph 97 of the "t" designation by the following: "t-specific month or season's duration in hours, determined in accordance with the provisions of this subchapter 5.4.1."
28. Replace paragraph 98, the words and figures "in accordance with the standard EN ISO 13790:2008 EN" with the words and figures "in accordance with the standard EN ISO 13790: EN 2009".
29. Make 101 legend "I, k" as follows: "I, k-calculation period in solar radiation received at the surface of savācoš square feet, determined using meteorological information-statistical data (W/m2)."
30. Express, 103, 102, 105 and 104.106 as follows: "102. construction of the Glazed delimiting element (such as) effective savācoš the area is calculated using the following formula: k = the hair dryer, g, gg (1-FF) Al, p (35), k-glass: As part of the savācoš area (m2) for glazed elements shall be deemed to include polymers and other light permeable material containment structures, which act as glazed elements;
Hairdryer, g – shading reduction coefficient with mobility conditions shall be determined in accordance with the provisions of paragraph 104;
GG-common element transparent parts of the solar energy transmittance, determined in accordance with annex 5 of these rules (the transparent part can consist of glazing or from permanent sunlight dissipating or aizēnojoš layers);
FF-frame part of the projected area of the frame area relative to the total projected area of the element the glazed, determined in accordance with the provisions of paragraph 110;
Al, p-General glass elements (such as Windows) the projected area (m2).
103. Opaque buildings delimiting the effective part of the design with the warmth of the Sun savācoš the area is calculated using the following formula: k = αs, c Sharp, Rs etc. Act (36) where: S, k – opaque parts of the effective area (m2) savācoš;
αs, c – absorption coefficient opaque parts of the Sun's radiation, which is determined in accordance with the standard EN ISO 6946: EN 2008 "buildings būvkomponent and būvelement. Siltumpretestīb and heat exchange coefficient. The methodology for calculating "(hereinafter EN ISO 6946: EN 2008);
RS-opaque parts of the external surface of the thermal resistance shall be determined in accordance with the standard EN ISO 6946: EN 2008 (m2 K/W);
Etc: opaque parts of the heat transmission factor shall be determined in accordance with the standard EN ISO 6946: EN 2008 (W/(m2xoC));
Eye-opaque parts of the projected area (m2).
104. The shading with the conditions of transferability shading reduction factor for a hairdryer, g is calculated using the following formula: Hairdryer, g = [(1-fl, int) + fl, int gg gg + shadow] (37): gg gg-total solar energy transmittance through the window, if you are not using the solar shading, determined in accordance with the provisions of annex 5, table 1;
GG + shadow – total solar energy transmitted through the window if you use solar shading, determined in accordance with the provisions of annex 5 of tables 1 and 2;
FL, in, the time factor is assessed in part through solar shading, such as solar radiation intensity function which depends on the season and the orientation of the window shall be determined in accordance with the provisions of annex 5 of table 3.
105. Solar control shading to distinguish between such solar shading control types: 105.1. no control (included in the window g value);
105.2. manual operation;
105.3 the motorised operation;.
Auto control 105.4.

106. the external shading reduction ratio, amplitude is kurа hair dryer from 0 (fully reduced) and 1 (not reduced) to reflect a reduction in the intensity of the solar radiation to determine the permanent surface from shading: 106.1. other buildings;
106.2. the surrounding terrain and land cover;
106.3. shelters, overhanging and similar structures;
106.4. same building other elements;
106.5. wall mounted external parts that are glazed elements. "
31.107 and 108 be removed. point.
32. paragraph 109 of the following expression: ' 109. Shading correction factor is calculated using the following formula: a = the hair dryer Fh Fp Fl (39) where: Fh-shading correction factor for the horizon effect under this provision 6. table 1 of the annex;
FP-shading correction factor for hanging and shelter effects in accordance with the provisions of annex 6, table 2;
FL-shading correction factor the effects of window position in accordance with the provisions of annex 6 of table 3.
33. Replace paragraph 111, the words "heat capacity" with the words "heat capacity".
34. Make 5.9.2. subdivision name as follows: "the benefits of using 5.9.2. factor heating".
35. paragraphs 114 to express the following: "the benefits of using 114. factor heating ηapk, ieg is the heat balance and the numerical value of the γapk parameter aapk (which depends on the building's thermal inertia). The benefits of using factor heating is determined using the following formula: 114.1. If yapk > 0 and ≠ 1, yapk (40);
114.2. If yapk = 1 (41);
If 0, 114.3. yapk; < (42)
114.4. (43) (each month or season and each building zone): ηapk, ieg-benefit utilization factor for heating;
γapk-heat balance factor heating nodes;
Qapk, z is the total heat loss in the heating portion shall be determined in accordance with the provisions of section 68.1. (who);
Qapk, ieg-total heat yield heating part, determined in accordance with this rule 69.1. subparagraph (who);
aapk-numerical parameter, which depends on the time constants t Dac, is determined using the following formula: = τ aapk aapk .0 .0 + τ DAC DAC (44) that:-a dimensionless numerical aapk .0 parameter. Continuous fire blazing (more than 12 hours a day) buildings, such as apartment buildings, hotels, months, aapk .0 = 1 for calculation of the seasonal calculation aapk .0 = 0.8;
DAC-τ of a building or area, time constant, determined in accordance with the provisions of paragraph 119 (h);
.0-specified time τ DAC constant. Continuous fire blazing (more than 12 hours a day) buildings, such as apartment buildings, hotels, the calculation of the month τ = 15 h, jrb .0 seasonal calculation τ = 30 h. "JMC .0
36. paragraphs 116 to express the following: Loss of use of the "116. factor cooling ηdz, z is the balance sheet value of heat γdz and cooling of a numeric parameter adz (which depends on the building's thermal inertia). Loss factors of use for cooling is determined using the following formula: 116.1. If ydz > 0 and ≠ 1, ydz (45);
If = 1, ydz 116.2. (46);
116.3. If ydz, (47) < 0
116.4. (48) (each month or season and each building zone): ηdz, z-loss factor of utilization of cooling;
γdz – cooling parts heat balance;
Qdz, z-cooling parts of the total heat loss with transmission and ventilation, shall be determined in accordance with the provisions of section 68.2. (who);
Qdz, z-cooling parts total heat benefits shall be determined in accordance with the provisions of point (who) EB 69.2.;
adz-numerical parameter, which depends on the time constants τdz, determined using the following formula: adz = τ or τ or adz .0 .0 + (49): adz .0-a dimensionless numerical parameter. Continuously cooled (more than 12 hours a day) buildings, such as hotels, the calculation of the month = 1 .0 adz, seasonal calculation adz .0 = 0.8;
– τ or of a building or area time constant, determined in accordance with this rule 119 (h);
.0-specified time τ or constant. Continuously cooled (more than 12 hours a day) buildings, such as hotels, the calculation of the month or .0 = τ 15 h, seasonal calculation or τ = 30 h .0. "
37.5.9.4. the subheading the following expression: "5.9.4. Building the time constant, the coefficient of thermal mass and internal heat capacity Building 118. time constants, coefficients and the mass of heat internal heat capacity of dynamic parameter values calculated in accordance with the procedure laid down in this section or adopted in accordance with the provisions of annex 7.
119. area of a building or of the time constant τ represents the conditioned area internal thermal inertia in the heating and the cooling period. It is calculated using the following formula: τ = Cm HK (50): τ-area of a building or of the time constant heating or cooling or JMC t t (h);
Cm – adjust the building's internal heat capacity, calculated in accordance with the provisions of paragraph 121 (Wh/l);
HK-building the overall heat loss coefficient, calculated in accordance with that rule 120 (W/K).
120. in the area of a building or the overall heat loss factor is calculated using the following formula: HK = (HT + Hv, k, k) (51): HT, k – building heat transmission coefficient of loss shall be determined in accordance with the provisions of this subchapter 5.5 (W/K);
HVE, k – ventilation heat loss coefficient shall be determined in accordance with the provisions of this subchapter 5.6 (W/K).
121. the area of a building or the corrected internal heat capacity is calculated by summing all the Cm building element of the adjusted heat capacity, which is in direct thermal contact with the zone's internal air: Cm = preferential Χj Aj (52): Cm-adjusted internal heat capacity (W/K);
Χj – adjusted to the internal heat capacity building element j area shall be determined in accordance with the standard EN ISO 13786: EN 2008 "būvkomponent of the thermal characteristics of the building. Dynamic thermal characteristics. Calculation methodology "(w/(m 2 x K));
AJ-element j (m2) area. "
38. Make 123., 124, 126, 125.. and paragraph 127 by the following: "123. Continuous heating full heating period the building or buildings used for the zone set temperature Tuzs, DAC.
124. Continuous cooling full cooling period the building or buildings used for the zone set temperature, or Tuzs. 125. Actual average temperature in heating period can be higher, which leads to pārkurināšan and should be taken into account with respect to benefits of use. Cooling for part of the actual average internal temperature may be lower, and this creates unnecessary consumption of energy (losses).
126. Irregular (semi-permanent) heating and cooling down as a continuous (heating or cooling) to adjust the set temperature by meeting one or more of the following conditions:

126.1. average room temperature is used in the calculation, as the set temperature: 126.1.1. If installed temperature difference between the heating or cooling of permanent and reduce the heating or cooling is less than 3 ° c;
126.1.2. If the building time constant, determined in accordance with the provisions of paragraph 119, are at least 5 times less than the shortest reduced heating (heating) or cooling (cooling);
126.2. Permanent heating parts set temperature set temperature is used as the calculation of all the periods, if the time constant, determined in accordance with the provisions of paragraph 119, is three times larger than the longest period of reduced heating.
127. The installed temperature of continuous use refrigeration period all periods when the building time constant, determined in accordance with the provisions of paragraph 119, is three times larger than the longest period of reduced cooling. "
39. Express the following subsection 5.10.2, "5.10.2. adjustment of heating break 128. Where is the heating break and are not met, this provision sub-chapter conditions 5.10.1., heating energy is calculated using the following formula: Qapk, n = asamz × Qapk, DAC (53), n, n, n-Qapk, where: heating power required, taking into account the breaks (who);
Qapk, n, n-energy required for heating the continuous heating period, assuming that the set temperatures are controlled in all days of the month (who);
asamz, DAC-reduction factor heating break time, determined in accordance with the provisions of article 129.
129. The reduction factor for heating with breaks, asamaz DAC is calculated using the following formula: asamz = 1, bsamz, DAC, DAC (τapk .0/τ) × γapk × (1-fN, DAC) (54), (with a minimum value, DAC, DAC asamaz = fN and maximum value asamaz, DAC = 1): asamz, DAC-reduction factor for heating with breaks;
fn, DAC-part of the number of hours a week with a continuous heating (setpoint temperature is not reduced or heating is not turned off), for example, (5 x 14)/(7 x 24) = 0.42;
bsamz, DAC-empirical correlation factor (the value bsamz, DAC = 3);
τ-area of a building or of the time constant, determined in accordance with the provisions of paragraph 119 (h);
τapk .0-recommended time constant heating portion shall be determined in accordance with the provisions of subdivision (h) 5.9.2.;
γapk-heat balance of heating part of the proportions shall be determined in accordance with the provisions of this subsection 5.9.2.
130. If there is a cooling break and this provision is not complied with section 5.10.1. these conditions, cooling energy is calculated using the following formula: Qdz, n = asamz, or × Qdz, n, n (55): Qdz, n-cooling power required, taking into account the breaks (who);
Qdz, n, n-cooling energy required for continuous cooling period, assuming that the set temperatures are controlled in all days of the month (who);
asamz, dz-reduction factor for cooling with breaks, shall be determined in accordance with this provision, paragraph 131.
131. The reduction factor for cooling with breaks, or asamz is calculated using the following formula: asamz, bsamz, or or = 1-(τdz .0/τ) × γdz × (1-fN, or) (56) (with minimal value, or asamz = fN, and the maximum value of either asamz, or = 1): asamz, dz-reduction factor for cooling with breaks;
fn, or – the number of days part of the week with at least during the day the temperature set for cooling (the temperature is reduced, or the machine is not turned off), such as 5/7;
bsamz, dz-empirical correlation factor (the value bsamz, or = 3);
τ-area of a building or of the time constant, determined in accordance with the provisions of paragraph 119 (h);
τdz .0-specified time constant cooling part, determined in accordance with the provisions of subdivision (h) 5.9.3.;
γdz-heat balance in the ratio of the cooling part, determined in accordance with the provisions of this subsection. "5.9.3
40. To make paragraph 133 as follows: "133. Months, which include the" holiday "period, the heating and cooling energy is calculated separately for a continuous period and the" holiday "period and results in linear interpolated according to holiday and residential part of the period, using the following formula: 133.1.  Qapk, n = N × Qapk, fapk, n, n + (1-fapk, N) × Qapk, on the (57);
133.2., Qdz, n = N × Qdz fdz, n, n + (1-fdz, N) × Qdz, on the (58), where: n-Qapk, heating power required, taking into account the "holiday" period (the who);
Qdz, n-cooling power required, taking into account the "holiday" period (the who);
Qapk, n, n-need for heating energy in a continuous heating period, assuming that the set temperatures are controlled in all days of the month (who);
Qdz, n, n-cooling energy required for continuous cooling period, assuming that the set temperatures are controlled in all days of the month (who);
Qapk, n, on-heating energy required "holiday" period, assuming that the set temperatures are controlled in all days of the month (who);
Qdz, n, on-cooling energy required for the "holiday" period, assuming that the set temperatures are controlled in all days of the month (who);
fapk, N – "holiday" period of the month part of the heating period, such as 10/31;
fdz, N – "holiday" period part month cooling period, such as 10/31. "
41. in paragraph 134 of such express: "134. total energy required heating and cooling the building zone is calculated as the sum of the calculated energies for the period, taking into account the possible workload for different heating or cooling parts as defined in these regulations and in paragraph 128.129:134.1. 

(59);
134.2. (60): Qapk, n,-the total energy required for heating specific zone (Wh);
Qapk, n, i-heating energy required for a given calculation period in zone i (per hour or per month), determined in accordance with the provisions of subdivisions (who) 5.4.2;
Qdz, n,-total energy needed in a given area (who);
Qdz, n, j-cooling energy required for a given calculation period in zone j (per hour or per month), determined in accordance with the provisions of subdivisions (who) 5.4.2. "
42. Make 136. paragraph by the following: "136. More zone calculation (with thermal effects between zones or not) the total heating and cooling energy of a specific need for heating, cooling and ventilation systems to combine different areas has the necessary amount of energy through the zones, which use different HP system combination: 136.1.

(61);
136.2. (62):

Qapk, n, set, HP – the total area of the whole building heating power required HP is using a particular combination of the system (who);
Qapk, n, z – the total area of the building for heating energy required for z, using a combination of certain system, shall be determined in accordance with the provisions of paragraph 134 (who);
Qdz, n, set, HP – the total area of the whole building cooling energy required for HP, using a combination of certain system (who);
Qdz, n, z – the total area of the building cooling energy required for z, using a combination of certain system, shall be determined in accordance with the provisions of paragraph 134 (who). "
43. the express section 138.2. by the following: "heating to 138.2. amount of energy Qapk, n, i, a heating system losses, beat Qapk, i lose and heating systems of Qapk, papildenerģij, Papa, i hit the energonesēj i (Wh). Loss and papildenerģij include energy production, transport, control, distribution, storage and discharge (just down the cooling: Qdz, n, i, Qdz, sis, sis, i and Qdz, pap, i); ".
44. paragraph 149 of the following expressions: "149. If the measured energy efficiency assessment (adjusted to the indoor temperature of the regulations) and the calculated efficiency comparison of assessment results is acceptable (other than for less than 10 percent and not more than 10 kWh/m2 per year), it is considered that the calculation model of the building, including the estimated starting data is reliable and energy efficiency assessment can continue. "
45. To delete the words in paragraph 150, and the number "(differs by more than 20 percent)".
46.152. points to express the following: "152. Climatic data shall be determined in accordance with the LBN 003-01" Būvklimatoloģij "using meteorological information and statistical data."
47. Replace paragraph 154 of the introductory paragraph, the word "assessment" by the words "actual assessment".
48.159 and 160. Expressing the point as follows: "159. After the required (calculated) and used (measured) energonesēj calculation determines the overall building energy efficiency indicators, calculated, taking into account the provisions of Chapter 2.
160. The total building energy efficiency indicators calculation: 160.1. energy consumption – kWh to calculate the area of a square metre a year;
160.2. carbon dioxide emissions assessment – kilograms of carbon dioxide to calculate the area of a square metre a year. "
49. To supplement the provisions of the following paragraph 169: "169. Heating and other energy-consuming systems piegādājoš or economic assessment carried out in accordance with standard EN EN 15459:2008" energy efficiency of buildings. Economic evaluation of building energy systems '. "
50. Annex 1 to express the following: "1. the annex to Cabinet of Ministers of 13 January 2009. of Regulation No. 39 higher calorific values, carbon dioxide (CO2) emissions factors no PO box
Fuel unit gross calorific value 103Wh CO2 emission factor 10-6 kg/who 1.
Hard coal (anthracite) kg-8.9 9.7 394 2.
Brown coal (lignite) kg 4.2-8.3 433 3.
Biogas m3 4-8 4 4.
10.5 m3 natural gas 277 5.
Fuel oil (heavy fuel oil) 11.9 kg 330 6.
Kg – 13.9 11.8 diesel 330 7.
3.6 – 5.6 kg Frēzkūdr 188 8.
Coke kg 7,8 – 8.6 467 9.
3.8-4.7 kg wood 4 10.
Wood kg 3.8-4.7 14 11.
Wood (beech) kg 3.8-4.7 13 12.
Wood (spruce) kg 3,8-4.7 20 13.
Straw kg 5.2 4 14.
Liquefied natural gas in kg 13.8 277 15.
Of electricity grids – – 90 16.
Electricity from fossil resources – – 397 17.
Electricity from hydroelectric power stations – – 7 18.
Heat from the boilers,-264 "51. Deletion of annex 3.
52. Annex 4 be expressed by the following: "4. in the annex to Cabinet of Ministers of 13 January 2009. of Regulation No. 39 internal heat gains 1. Internal heat gains, heat flow in the part of the people and devices on residential buildings.
table 1 no PO box
The day of the week 24 hours living room + kitchen (Φiek, population + Φiek, trainee)/Aapr (W/m2) of conditioned areas Other (for example, bedroom) (Φiek, Φiek, population + passenger)/Aapr (W/m2) 1. Monday – Friday 07.00 – 17.00 17.00-23.00 23.00 8.0 1.0 20.0 1.0-2.0 6.0 00 average of 9.0 2.67 2. Saturday and Sunday 07.00-17.00 17.00-23.00 23.00 20.0 4.0 8.0 2.0-2.0 6.0 to 9.0 3.83 3.00 Average average of 9.0 3.0 2. Internal heat gains, heat flow in the part of the population and the devices in Office buildings.
2. table no PO box
The day of the week 24 hours office space (60% of the net floor area) (Φiek, Φiek, population + passenger)/Aapr (W/m2) other facilities (such as the lobby, Foyer, corridors) (40% of the net floor area) (Φiek, Φiek, population + passenger)/Aapr (W/m2) 1. Monday – Friday 07.00 – 17.00 17.00-23.00 23.00 20.0 8.0 2.0 1.0-2.0 1.0 00 average 9.50 3.92 2. Saturday and Sunday 07.00-17.00 17.00-23.00 23.00 2.0 1.0 2.0 1.0-2.0 1.0 2.0 1.0 3.00 average average of 7.4 3.1 3. heat flow part of the population of non-residential buildings.
table 3 no PO box
The population density in the area to the Appropriate person (m2) other facilities (such as the lobby, Foyer, corridors) (40% of the floor area of the net), an Φiek/Aapr (W/m2) 1.1.0 2.5 10 3 15 2. II I III IV V 5.5 20 2 4 14 3 5 5 4... heat flow part of the devices in the non-residential buildings.
table 4 no PO box
The building uses the heat produced during operation of the equipment, passenger/Aapr Φiek (W/m2) the part of the average heat flow fiek from equipment, passenger/Aapr Φiek (W/m2) Office 15 1 3 2 0.20. School 5 1 3 0.15. Health care institution (hospital) 8 4 4 0.50. Health care (outpatient) 0.20 3 5 15. Catering space 10 3 6 0.25. Trading room 10 3 7. Public measures 0.25 space 5 4 1 8. Hotel 0.50 0.20 2 9.
Repair authority 4 2 10 sports authority 0.50.4 0.25 1 ' 53. Annex 5 shall be expressed by the following: "5. the annex to Cabinet of Ministers of 13 January 2009. of Regulation No. 39 overall element transparent parts of the solar energy transmittance values and reduction factors 1. Solar energy transmittance values.
table 1 no PO box
Type of glazing common element transparent parts of the solar energy transmittance gg 1. Single glass Double glazing 2 0.85 0.75 3. Double glazing with selective coating 0.67 4. triple glazing 0.7 5. triple glazing with two selective coating 0.5 0.75 Double window 6.

2. the Transparent parts of the solar energy transmittance values affect the cover (curtains and blinds), which significantly reduces the solar energy transmittance. Reduction factors for some obscure types listed in table 2. Cover (curtains and blinds) impact factor must be multiplied by the total element transparent parts of the solar energy transmittance value (gg + shadow = gg × gene).
2. table no PO box
Cover type cover optical qualities of the reduction factors gene with absorption transmission internal cover external screens 1. lifting and white drop-down blinds 2.0.1 0.05 0.1 0.3 0.25 0.30 0.45 0.10 0.15 0.35 White curtains 0.1 0.5 0.7 0.9 0.65 0.80 0.95 0.55 0.75 0.95 3. Colored fabric curtains 0.3 0.1 0.3 0.5 0.42 0.57 0.77 0.17 0.37 0.57 4. Aluminium cover hoods 3.0.2 0.05 0.20 0.08 mobile solar shading reduction factor fl , int, depending on the month and glazed surfaces orientation.
table 3 Period North East South West January February March 0.0 0.5 0.8 0.5 0.0 0.1 0.6 0.0 0.0 0.3 0.6 0.2 0.0 0.5 0.7 0.4 0.0 0.5 0.6 0.4 April May June July August 0.0 0.5 0.6 0.4 0.0 0.6 0.6 0.5 0.0 0.6 0.6 0.5 September 0.0 0.3 0.6 0.2 0.0 0.1 0.5 0.0 0.0 0.4 0.6 0.3 October November December 0.0 0.3 0.6 0.2 0.0 0.0 0.5 0.0 heating season "54. Annex 6 to be expressed by the following Annex 6: "the Cabinet of Ministers of 13 January 2009 Regulations No 39 reducing the coefficient of shading in the heating season 1. Shading correction factor part of the horizon, Fh. table 1 no PO box
Horizon angle α 56 (latitudes) 58 (latitude) South West/East North South West/East North 1.2.10-1.00 1.00 1.00 1.00 1.00 1.00 0 ° 0.93 0.92 0.99 0.92 0.91 0.98 3.20-30 4-0.48 0.61 0.92 0.46 0.59 0.91 0.67 0.74 0.95 0.65 0.73 0.94 5.40-0.39 0.55 0.89 0.37 0.54 0.87 figure 1. Horizon angle α 2. Shading correction factor part of the overhang and sheds, Fp. table 2 no PO box
Overhang angle α 56 (latitudes) 58 (latitude) South West/East North South West/East North 0 ° 1 2 30-0.93 0.91 0.91 0.94 0.91 0.91 1.00 1.00 1.00 1.00 1.00 1.00 3.45.60-4 the 0.81 0.79 0.80 0.82 0.80 0.80 0.61 0.61 0.65 0.62 0.62 0.65 3. Shading correction factor part of the protruding vertical elements (barrier) the impact Table 3, FL. no PO box
The angle β of the barrier 56 (latitudes) 58 (latitude) South West/East North South West/East North 0 ° 1 2 30-0.94 0.91 0.99 0.94 0.91 0.99 1.00 1.00 1.00 1.00 1.00 1.00 3.45.60-4 the 0.86 0.83 0.99 0.86 0.83 0.99 0.74 0.74 0.99 0.74 0.74 0.99 note. table 3 shows the values validated the South side of the barriers. Windows with views to the South and barriers on both sides need to multiply two shading coefficients. The Windows of the East and West side of the barrier north side shading adjustment is required.

Figure 2. Sheds and barriers: a) vertical section overhang angle α, b) horizontal slit angle β of the barrier. "
55. Make 7. attachment as follows: "Annex 7 Cabinet 2009 January 13, Regulation No 39 dynamic parameter values no PO box
The design of the building's main construction material classification * Cm (Wh/l) 1. Very lightweight glass, mineral wools, putupolistirol in the Early light 2 16.7 wood and wooden building materials 23.1 Early medium 3 aerated concrete, the ceramic brick dobt, keramzītbeton, skaidbeton in Early Pilnķieģel 4 heavy 34.4, the reinforced concrete panel 54.2 dobt Early 5. Very heavy concrete, reinforced concrete, stone wall, 77.2 Early note. * make up 80% of the secondary containment structures. "
Prime Minister v. Economic Minister Dombrovskis a. camphor