Cabinet of Ministers Regulations No. 312, Riga, June 16, 2015 (pr. No 29 5. §) rules on the Latvian et seq of the LBN 016-15 "Būvakustik" Issued in accordance with article 5 of the law on construction of the first part of paragraph 3 of rule 1 et seq of Latvia confirmed the LBN 016-15 "Būvakustik" (hereinafter referred to as the Latvian et seq of the LBN 016-15). 2. The Ministry of economy in cooperation with the relevant technical standards Committee recommends that national bodies for standardisation in relation to these provisions, the reliance and designing standard applicable list. 3. National standardisation body shall publish the www.lvs.lv tīmekļvietn their national list of the standards that apply to the Latvian et seq of the LBN 016-15. 4. Projects which are developed in or submitted to the būvvald reconciliation rules for the entry into force of the corresponding period in the normative requirements need not be processed according to the Latvian et seq LBN 016-15. the Prime Minister of the rapidity of the Economic Ministers Newsletters site-Health Minister, Guntis Belēvič was approved by the Cabinet of Ministers on 16 June 2015 by Regulation No 312 Latvian et seq of the LBN 016-15 "Būvakustik" 1. General questions 1 et seq determines the key requirements building space and the estrāž of small acoustic characteristics. 2. the following terms used in et seq: 2.1 external delimiting sound design air isolation index R ' 3, s, w (dB)-size to use when evaluating the sound insulation between rooms and external areas – outer containment building design and its elements of sound insulation; 2.2. blakustrokšņ level LAeq, T (dB)-audience sites useless, troublesome, continuous A-weighted sound pressure level; 2.3. the C80 (dB) – listener perceived early (80 ms) and late (after 80 ms) of the sound power of the period, describing the sound clarity of space points; 2.4. C50-3150 (dB) and CI-2500 (dB)-50 spectral correction sound insulation calculations using measurements with extended frequency range of up to 50 Hz. Adjustment (A) and (B) apply to the classroom; 2.5. Ctr (dB) – adjustment in the relative transport noise; 2.6. actual normalized level index triecientrokšņ L ' n, w (dB)-size to use when assessing the spread of triecientrokšņ building and construction of the delimiting triecientrokšņ insulation under real conditions to bypass the sound. Normalized level index triecientrokšņ Ln, w-size, the design of the delimiting triecientrokšņ isolation in the laboratory without sound bypass; 2.7. the actual sound insulation air normalized index R ' w (dB)-size to use when assessing the internal design of the buildings delimiting sound insulation, and the spread of the sound through the delimiting it construction, as well as through the adjacent structures – along the bypass. Normalize sound insulation Rw air index-size, which is determined using laboratory measurements or calculations, and does not include sound penetration through the bypass; 2.8. the peak sound pressure level LCpīķ (dBC). C-weighted instantaneous sound pressure in the maximum value; 2.9. acoustical screen – continuous barrier (construction, buildings or terrain item) that is placed directly in the path of sound from its source on the protected space and causes the sound waves diffraction; 2.10. the reverberation time T (s) – the time after you turn off the sound source, the sound pressure level decreases by 60 dB in the receiver; 2.11. T30 (s) – the reverberation time sounds ranging from Ray-5 dB up to-35 dB; 2.12. the speech transmission index RESULT ()-sound readability scores, using the following rating scale: 2.12.1. less than 30%-bad; 2.12.2. from 30% to 45% – weak; 2.12.3. from 45% to 60% – satisfactory; 2.12.4. from 60% to 75% – good; 2.12.5. from 75% and above-excellent; 2.13. sound the air-sound (noise) from the sound source to the construction spreads in the air; 2.14. structure-mechanical fluctuations that spreads the building structures and causing the sound in the air; 2.15.3-d factor LF – listener oriented sound not perceived energy and direct sound energy for 80 ms period, which characterized the 3-d sound; 2.16. triecientroksn-noise that spreads and caused direct mechanical effects to the structure (for example, walking through the divisions and stairs). 1.1. scope of the et seq 3. Et SEQ requirements attributable to the public and residential buildings and building sites throughout their functional cycle, prospecting and construction. Et seq requirements are mandatory for all legal and natural persons. 4. Et SEQ does not apply to the production, technical and special interest areas, as well as to buildings (such as recording and broadcasting studios and sound facilities planning), which is made of special acoustic requirements and the acoustic parameters are determined by the client. 5. From the perspective of the acoustic comfort the rooms are divided into four classes: (A) class 5.1 – rooms with particularly high acoustics and sound insulation properties; 5.2. B class-rooms with higher acoustics and sound insulation properties than the minimum; 5.3. C class-rooms where sound insulation minimum requirements are mandatory for new building design; 5.4. Class D-space into existing buildings. 6. the estrāž of buildings and small acoustic requirements the design standards which apply to the list of www.lvs.lv tīmekļvietn is published by the national standardization bodies. 7. The acoustic calculations, and calculations necessary measurements can be carried out in accordance with the applicable requirements of the standards. 1.2. the objectives of the measures and Būvakustisk them implementation 8. Būvakustisk the main purpose of the measures is a human-friendly acoustic (sound) environment in buildings and building in General. This implementation uses the architectural and construction methods. Sound source for acoustical elements and acoustic environment parameters determined using measurements or calculations. 9. Būvakustisk measures include acoustical measures and acoustic quality improvement measures. Anti-noise measures include building acoustics, technical equipment (inženieriekārt) noise reduction and sound insulation. Their purpose is to prevent the noise limit values being exceeded and the building territory. The acoustic quality improvement measures include optimal audibility and labskanīb to the provision of premises and the small stage. 10. Designing room acoustics with high requirements, as well as the class A and B sound insulation requirements, structures and acoustic surveys shall be carried out by qualified experts from būvakustik. Būvakustik expert has qualified specialists with higher education and at least five years ' seniority, qualification of acoustics certifies the bodies accredited certificate issued by the society with limited liability "the standardization, accreditation and Metrology Centre" Latvian National Accreditation Bureau, or any other Member State of the European Union institutions accredited certificate is issued. 2. Room Acoustics 2.1. requirements for acoustic characteristics of acoustic Space 11 parameters that characterize the room acoustic, can be determined according to the applicable standards. The acoustic parameters are fixed and evaluated with the octave frequency bands for 125, 250, 500 vidusfrekvenc, 1000, 2000 and 4000 Hz. 12. General requirements of different function rooms, the listeners (visitors) of acoustic parameters determine the zone of this annex 1, et seq. The client, providing for the use of the premises of the building, have the right to specify the acoustic parameter values that are higher than this 1 et seq., referred to in the annex as well as specify additional parameters. If the parameter values are not specified and not mentioned in this annex 1 et seq, by agreement with the client determines the būvakustik of its qualified expert. 13. Room Acoustics designed such that the maximum useful sound-level values do not exceed the value of the risk of hearing and in any area of the site of listeners than blakustrokšņ level LAeq, T no less than 6 dB. Listeners of permissible sound level LAeq, T values of 0.22 > 40 2. Symphonic Music Hall * 0.4 0.4-2 lgV + ... + 3 > 0.20 > 45 3. Chamber music and opera halls * 0.3 0.3-1. lgV +. + 4 > 0.15 > 50 4. Universal Hall, the people's House, the club room * 0.25 opereš lgV + 0.25 > 0 > 0.12 > 53 5. Speech communication area (for example, audiences, conference rooms, drama theatre) ** + 0.2 0.2 lgV > > 0.10 60 6 1 >. Rooms with a apskaņošan electroacoustic ** 0.1 0.1 0-lgV + > > 60 7. Education classes (except music class) 0.4 ...-2 60 8.0,6 > > Music class and rehearsal rooms 0.6 ... 0 50 9 1.1 > > > 0.15. Gym-3- > 40 10. Stairwells, corridors and sharing space in residential and public buildings – – – notes < 1.3. 1. FIND the values of the sound source to be speech or electroacoustic in apskaņošan mode. 2. the value of the 3-d factor LF music source state space. 3. the tolerances of the table value is +/-5%. 4. Values correspond to rooms containing 70% of the expected visitors. 5. value of 125 and 250 Hz within the recommended increase of 10-20%, but 4000 Hz frequency-reduced by 5-10%. 6. T 125-250 Hz the value limits adopted 500-2000 Hz 4000 Hz frequency band, but they reduce the levels of about 5-10%. In place of the Minister of Economics, Minister of health Belēvič 2. Guntis annex to the Latvian et seq LBN 016-15 "Būvakustik" (approved by Cabinet of Ministers of 16 June 2015 by Regulation No 312) space and the inner surface of the geometric parameters figure 1 proportion of space with optimal area figure 2 Sound-dissipating element dimensions economic Minister, the Minister of health annex 3 Guntis Belēvič Latvian et seq of LBN 016-15 "Būvakustik" (approved by Cabinet of Ministers of 16 June 2015 by Regulation No 312) sound insulation requirements for building internal structures no boundaries p. k. Building and space type class notes 1 2 3 4 5 i. residential home А/B class R ' w + C50-3150 (dB) C/D class R ' w (dB) 1. Apartments accommodation among 60/57 55/54 refers to all types of residential buildings 2. Between the housing accommodation and office space for the sharing, 60/57 55/54 sharing space is the staircase, the lobby and corridors, as well as the attic and basement premises used 3. Between apartments and rooms containing noise sources with the maximum level: 3.1. up to 80 dB 64/60 55/56, ventilation engine room, garage 3.2. 81-90 dB/69 65 73 66/cafes, bars, shops 3.3. 91-100 dB 79/77/74 75 restaurants, sports medicine 4. Between one of the apartment's rooms in the 51/48 46/45 divisions between the rooms in two-story apartment, partitions between rooms and without the door between the kitchen and the room 5. Apartment entrance door (door system): 5.1. open directly to the landing 41/36 38/35 5.2. opens to the foyer, separate from the staircase with walls 28/33/30 27/B class А L ' n, w + CI .50-2500 (dB) C/D class L ' n, w (dB) 6. Between 48/51 53 apartments/54 requirements do not apply to apartment bathroom, lavatories, sauna and similar premises 7. Between the balconies, staircase, corridor, bathroom and the flat 52/55 57/58. Between the apartment and the room in which the noise source of 42/45 47/48 if necessary, carry out additional measures for a reduction of the prevalence of struktūrtrokšņ 9. Between the two-story apartment living rooms/62/63 57 60 II. Hotels and similar buildings А/B class R ' w + C50-3150 (dB) C/D class R ' w (dB) 10. Between the dormitory (number) 58/53/52 55 temporary accommodation the accommodation is hotels, campsites, guesthouses, tourist and holiday home 11. Between the dormitory (numbers) and sharing space (the staircase, corridors, lobby, buffet) 58/53/12 55 52. Between the dormitory (number) and the premises containing the source of the noise to the maximum level: 12.1. up to 80 dB 64/60 55/56 kitchen, technical and staff room 12.2. 81-90 dB/69 65 73 66/cafes, bars, shops 12.3. 91-100 dB 79/77/74 75 restaurants, sports medicine 13. Between the individual rooms rooms 50/47 45 44 14. Door or door assemblies between the dormitory (the number) and a stairwell or hallway shared 38/35 33/32 А/B class L ' n, w + CI .50-2500 (dB) C/D class L ' n, w (dB) 15. From one dormitory (the number of) the other 51/54 56/58 does not apply to the dormitory balcony, bathroom and toilet 16. Between shared spaces (balcony, staircase, Foyer, hallway, buffet) and dormitory (the number) 49/52 54/55 17. Among the premises containing the noise source (technical service and maintenance, restaurant, kitchen facilities) and dormitory (the number) 44/47 49/50 if necessary, carry out additional measures for a reduction of the prevalence of struktūrtrokšņ 18. Nursing home and rehabilitation institutions accommodation apply sound insulation requirements laid down in this annex 9, 12, 13, 14, 15 and 16 (temporary accommodation) III. Office buildings and office space group А/B class R ' w + C50-3150 (dB) C/D class R ' w (dB) 19. Between work rooms, work rooms and staircases, corridors, halls, lobby to 56/53 51/50 20. Doors, Windows or their complexes: 20.1. from the work rooms to hallways, staircases, halls, lobby for 36/33/30 31 20.2. from medicine to the corridors, staircases, halls, lobby/39 36 42 37/21. Between the working spaces and spaces that contain sources of noise to the maximum level: 21.1. up to 80 dB-60/56 51/52 kitchen, technical and staff room 21.2. 81-90 dB/65 62/69 61 cafes, bars, shops at 21.3. 91-100 dB/71/73 70 75 restaurants, sports medicine 22. Between the Court halls, Conference halls and corridors, staircases, hall, the lobby, the business and the technical rooms/58 61 56/55 А/B class L ' n, w + CI .50-2500 (dB) C/D class L ' n, w (dB) 23. From the workspace to the workspace from the shared workspace to workspace 54/57 59/60 24. From the premises where the noise source (kitchen, technical service and maintenance facilities), the medicinal product 44/47 49/50 IV. Medical or healthcare buildings C/D class R ' w (dB) 25. Between the Chambers, between Chambers and similar premises 53/52 26. Between the Chambers, similar rooms and shared rooms (stairwells, hallways, lobby, day room, the dining room of the residence) 54/53 Chambers comparable spaces is an examination and procedure rooms, as well as a doctor's Office in 27. Among the operations rooms, between the operation rooms and other rooms (except the spaces in which the equipment causing the noise) 56/55 28. Between the intensive care wards, between the ICU and Hall 38/37 if the walls have Windows 29. Between the Chambers and similar rooms and kitchen, technical service and maintenance rooms 61/60 30. Among the special premises (such as hearing tests Cabinet) and other rooms/62 31 63. Doors, Windows or their complexes: 31.1. between the Chambers and the Hall 33/32 31.2. between the intensive care room and the Hall 28/27 31.3. between hearing examination room and other rooms 37/36 C/D class L ' n, w (dB) 32. From Chambers and similar premises to other premises 56/57 29. of this annex, paragraph 30 and 31 in the House of Commons and similar spaces are also operating room 33. From shared spaces (the staircase, corridors, lobby, day room of the residence) to Chambers and similar premises 56/57 34. From the premises where the source of the noise (kitchen, technical service and maintenance facilities), comparable to the Chambers and rooms for the 49/50 if necessary, carry out additional measures for the reduction of struktūrtrokšņ v. Education Group/class D C R ' w (dB) 35. School between classes and similar premises between those rooms and shared rooms (stairwells, corridors, halls, lobby) 53/54 classes for comparable space is similar to the training Office and teaching space. Does not apply to training institutions for children with hearing impairments 36. Between the large audiences (more than 100), between the large audience teaching premises 58/57 37. Between the large audiences and sharing premises (stairwells, corridors, halls, lobby) 56/55 38. Between classes, training Office, classrooms, and special classes/60 39 61. Among the special classes and sharing premises (staircase, corridors, halls, lobby) 58/57 special class is a class of music, workshops and gyms in 40. Between classes, training, audiences and Cabinet kitchen, dining hall, 56/55 41. Doors, Windows or their complexes: 41.1. between classes, the equivalent of rooms and hallways 31/30 41.2. between classes and similar premises (except music classes) 33/32 42. Between the preschool institutions of the Group rooms and dormitories/50 43 51. Between the preschool institutions of the Group rooms, dormitories and kitchen 53/52 44. Between the preschool institutions of the Group rooms, sleeping quarters and a music room or gym, 56/55 45. The door of the preschool institutions of the Group rooms or dormitories for the Hall 31/30 C/D class L ' n, w (dB) 46. From the class (teaching Office) to another class (teaching Office) 59/60, if necessary, carry out additional measures for the reduction of 47 struktūrtrokšņ. From shared spaces (the staircase, corridors, halls, lobby) to classes (teaching Office) 57/58 48. From the special class to class (teaching Office, audience) or other special class of 49/50 49. From large audiences (over 100 seats) to the classroom or other audience 47/48 50. From preschool institutions group rooms, dormitory to another group rooms and dormitories 59/60-51. From preschool institutions shared spaces (hallway, staircase, hall) to the Group rooms and dormitories, from the kitchen to the team rooms and dormitories 54/55 52. From preschool institutions in the music room, gym and group dormitories 52/53 VI. the mass of the building measures C/D class R ' w (dB) 53. Between the halls, library and reading room foyer, halls or hallways 58/57 54. Between the halls, library and reading room unused attic, cellar and storage premises 53/52 55. Between the halls, library and reading room spaces that contain sources of noise to the maximum level: take further measures to reduce struktūrtrokšņ 55.1. up to 80 dB of 58/57 55.2. 81-90 dB/67 66 55.3. 91-100 dB/75 56 76. Between the halls, library and reading room working space 56/55 57. Between audiences and Conference Centers 63/62 58. Between theater and concert halls 70/69 59. Between cinemas 75/74 C/D class L ' n, w (dB) 60. From the premises where the noise source (the technical room, engine room), Hall 47/48 61. From the foyer, hall, corridors and work areas to medicine 52/53 62. From grass to grass 49/50 63. From medicine to business premises 62/63 VI. Sport building and sport room Group C/D class R ' w (dB) 64. Among the Sports Hall, swimming pools and bars, cafes 49/48 65. Among the sports halls, swimming pools and work rooms 53/52 C/D class L ' n, w (dB) 66. From gyms, swimming pools, bars and cafes to working premises 62/63 economic Minister, Guntis Belēvič Minister of health 4 supplement to the Latvian et seq. LBN 016-15 "Būvakustik" (approved by Cabinet of Ministers of 16 June 2015 by Regulation No 312) requirements for external insulation design of the limiting noise notes. 1. x-if the outdoor noise level is too high in these spaces, to reduce the need to take special measures (such as the design of the dubultfasād). 2. Accurate values obtained rounded out the noise level values to an integer (for example, if Ldien = Ldien then the DBA, 70.4 = 70 dB). In place of the Minister of Economics, Minister of health annex 5 Guntis Belēvič Latvian et seq of LBN 016-15 "Būvakustik" (approved by Cabinet of Ministers of 16 June 2015 by Regulation No 312) index R ' 3, s, w correction coefficients depend on the design of the containment area and floor area ratio of S/S/So So 2.5 2.0 1.6 1.3 1.0 0.8 0.6 0.5 0.4 correction factor + 5 + 4 + 3 + 2 + 1 0-1-2-3 notes. 1. external S-space delimited design area (m2). 2. So, the floor area (m2). In place of the Minister of Economics, Minister of health Belēvič 6. Guntis annex to the Latvian et seq LBN 016-15 "Būvakustik" (approved by Cabinet of Ministers of 16 June 2015 by Regulation No 312) noise limit value adjustment according to the class room space in dB А class B class C class D dB dB dB class size Adjustment 6-2-12-0 instead of Minister of Economics, Minister of health of Guntis Belēvič