Setting requirements of building energy consumption monitoring system in Hebei Province

First, strengthen project entrance management. After the construction unit has obtained the land use right, when submitting the project design review, it shall submit the passive ultra-low energy consumption building construction application and construction standards together, and the accepting department shall submit it to the competent department of housing and urban and rural construction at the same level for identification according to the procedures. Housing and urban and rural construction departments should strictly supervise the implementation of relevant standards for passive ultra-low energy-consumption buildings during the project construction process.

Second, strengthen professional and technical support. If the construction unit lacks the construction experience and technical ability of passive ultra-low energy consumption buildings, it shall invite professional technical service institutions to provide technical consulting services for quality management of the whole construction cycle of the project. Technical service institutions should have corresponding achievements in passive ultra-low energy consumption buildings. The technology of building information model (BIM) should be adopted in the design and construction of passive ultra-low energy buildings.

Third, highlight performance-based design. Performance-based design should be guided by climate characteristics. According to the requirements of indoor environmental parameters and energy efficiency indicators specified in the standard, the sensitivity analysis of building load and energy consumption is carried out according to the key parameters of buildings and equipment by using tools such as energy consumption simulation calculation software. On the basis of simulation calculation, combined with the economic benefit analysis of building life cycle, the technical measures and performance parameters are optimized to determine the architectural design scheme.

Fourth, ensure the design depth of the construction drawing. The construction drawing design should clearly mark the position of the building sealing layer, draw the detailed drawings of special nodes, and clarify the specific practices and requirements. The design of related disciplines should include energy saving, ensuring the design depth of energy efficiency indicators, indoor environment design parameters, envelope practices and parameters, fresh air equipment parameters, energy system and operation mode.

Five, strict construction drawing review. Construction drawing review institutions should conduct full-text review in strict accordance with passive ultra-low energy consumption building design standards and policies to ensure that the design basis is correct and the design content meets the energy-saving standards, focusing on the completeness of thermal insulation structure and air tightness measures, and the heat recovery mode and efficiency of fresh air system.

Six, the implementation of special design evaluation. Before the project starts, the municipal and county housing and urban-rural construction departments shall organize experts and relevant units to make an assessment, or under the supervision and guidance of the housing and urban-rural construction departments, the construction unit shall entrust a third-party assessment agency to make an assessment. The design evaluation focuses on energy-saving design articles, energy consumption simulation analysis reports, detailed drawings of thermal insulation bridge nodes of external envelope, position of airtight layer, energy consumption, air tightness, indoor environment, thermal performance of envelope, ventilation system and other indicators, and relative energy-saving rate, air tightness, indoor environment, thermal performance of envelope, ventilation system and other indicators of public buildings. If the evaluation is unqualified, the local competent department of housing and urban-rural construction shall order the relevant responsible subjects to make rectification within a time limit and reorganize the evaluation.

Seven, strengthen the special design disclosure. The construction unit shall organize the design unit to make a special design disclosure of passive ultra-low energy consumption building technology to the technical personnel and construction management personnel of the construction supervision project department, and explain the design intent, technical indicators, specific practices and quality control measures in detail. If the management experience and technical ability of the construction unit are insufficient, it shall organize professional technical service institutions to carry out special technical training on passive ultra-low energy consumption building construction and management.

Eight, strengthen the pre-job training of workers. The construction unit shall, in accordance with the design requirements and technical standards such as Code for Construction and Acceptance of Passive Low-energy Buildings in Hebei Province, formulate operating procedures for major construction procedures, establish process templates for key construction links of passive ultra-low-energy buildings on site, and strengthen pre-job practical training and technical disclosure for frontline construction personnel. Personnel without training or technical disclosure are not allowed to work at their posts.

Nine, the preparation of special construction plan. The construction unit shall, according to the characteristics of the project, construction difficulties and key points of quality control, prepare a special construction plan, formulate detailed construction technology and quality assurance measures for key links such as thermal bridge treatment and air tightness assurance, and conduct on-site practical demonstration. Special planning should be compliant, scientific, advanced, reasonable, targeted and operable. The supervision unit shall, according to the special construction plan, formulate the detailed rules for the special supervision of passive ultra-low energy-consuming buildings and formulate corresponding quality control measures.

Ten, strengthen the on-site publicity system. Public signs should be set up on the project construction site. In addition to the information of responsible subjects and main management personnel of all parties to the project, information such as indoor environmental parameters, energy efficiency indicators, technical parameters of envelope and energy equipment and systems, main performance indicators of thermal insulation and energy-saving materials and fresh air system equipment, construction practices and technological processes of key nodes for sealing layer and thermal bridge treatment should be publicized, and social supervision should be actively accepted.

XI。 Strict design change management. In the process of engineering construction, it is strictly forbidden to change the design content and lower the construction standard without authorization. In principle, it is not allowed to change the design content of passive ultra-low energy consumption buildings. If it is really necessary to change, it shall be reported to the construction drawing review institution for strict review. Involving the design changes of the main contents, important technical parameters, main building materials and key construction techniques of the building scheme, the original evaluation department or institution shall re-evaluate the changes.

Twelve. Ensure the quality of materials and equipment. Passive ultra-low energy consumption buildings should give priority to materials or products that have obtained high-performance energy-saving labels or green building materials labels, and it is strictly forbidden to reduce the quality requirements of materials, equipment and products. Engineering supervision units and engineering quality supervision institutions should strictly supervise the quality of thermal insulation materials, external doors and windows, waterproof (permeable) gas film materials, fresh air equipment and other products that affect the energy-saving effect of passive ultra-low-energy buildings, and increase the frequency of sampling.

Thirteen, adhere to the construction model to guide the way. The construction unit shall, in strict accordance with the technical standards, construction drawings and approved construction drawings, first build a solid model. The key processes should be analyzed layer by layer, the construction process and quality control standards should be displayed, and the use of two-dimensional code technology should be encouraged. The entity model shall be organized by the supervision unit for construction, design and acceptance by the construction unit. When the project is fully constructed, the construction unit shall carry out the construction in accordance with the quality standards of qualified entity model houses, and shall not arbitrarily change the construction technology and materials used in the project to lower the quality standards.

Fourteen, the implementation of internal supervision. In the process of engineering construction, the project quality inspector should strengthen the daily quality inspection, strictly carry out the handover inspection of each working procedure and professional type of work, and make records. Supervisors should strengthen daily inspection and patrol, conduct full-time on-site and process supervision on important processes such as door and window installation, wall and ground insulation construction, internal and external thermal bridge treatment of building pipelines, and construction of sealing layer, make on-site records and supervision records, and keep image data of key processes as an important basis for project acceptance.

Fifteen, to carry out the website open day activities. In the process of passive ultra-low energy consumption commercial housing project construction, the construction unit is responsible for organizing the buyer and the project contractor to carry out on-site open day activities. In principle, three open days should be held in the handover stage of the main body and decoration project, the hidden stage of installation project and the acceptance stage of households, and the open area is not limited to the physical model. Every on-site open day activity should be open to all registered buyers, and the buyers should be informed of the activity time and registration method at least 5 days in advance. The project contractor shall explain the material selection, technological process and quality standard of the project in detail, patiently answer the questions of the buyer, make records and give timely feedback. If there is a problem, it must be rectified within a time limit.

Sixteen, strengthen the daily quality supervision. The housing and urban-rural construction departments of cities and counties should strengthen the daily supervision of passive ultra-low energy-consuming buildings, especially the supervision and inspection of the construction process of concealed projects that affect thermal performance and air tightness, such as wall energy saving, door and window energy saving, roof energy saving and ground energy saving, and strictly inspect energy-saving materials. For those responsible subjects and related personnel who violate the relevant standards of passive ultra-low energy buildings, such as construction, design, construction and supervision, record bad behaviors, and if the circumstances are serious, credit punishment will be implemented.

Seventeen, strengthen the engineering quality inspection. The construction unit shall entrust a qualified testing institution to carry out special testing on the parameters that have a significant impact on building energy conservation and indoor environment, mainly including air tightness testing of building envelope, thermal defect testing of envelope, heat transfer coefficient testing of main parts of envelope, fresh air heat recovery device testing, indoor noise testing and indoor air environmental quality testing, and issue a test report as an important basis for completion acceptance.

Eighteen, strict project completion acceptance. After the completion of the project, the municipal and county housing and urban-rural construction departments shall organize experts and relevant units to conduct construction review, or under the supervision and guidance of the housing and urban-rural construction departments, the construction unit shall entrust a third-party review agency to conduct review. Construction evaluation should cover the overall implementation and effect of passive ultra-low energy consumption buildings, the quality of main materials and parts, and the quality control of key nodes during construction. , and the construction conditions such as external insulation construction nodes, external doors and windows installation nodes, high-efficiency heat recovery fresh air system installation, heat-proof bridges and air tightness treatment measures were verified on site. As the basic data for the competent department of housing and urban-rural construction to supervise the completion and acceptance, the building evaluation results can be evaluated as passive ultra-low energy-consumption buildings through building evaluation and completion and acceptance. The competent department of housing and urban and rural construction shall strengthen the supervision and management of the project completion acceptance and strictly perform the completion acceptance procedures. Unqualified acceptance, it is strictly prohibited to deliver.

Twenty, strengthen the supervision of pre-sale funds. Strengthen the supervision of pre-sale funds for new passive ultra-low energy-consumption commercial housing. The competent department of housing and urban-rural construction where the project is located reserves 5% of the key supervision funds, and the supervision will be lifted two years after the house is completed and delivered. Supervise bank accounts and account numbers to be announced to the public in a timely manner.

Twenty-one, the implementation of full decoration delivery. Passive ultra-low energy consumption building projects should be fully renovated and delivered. Public areas such as lobbies, stairwells and corridors of public buildings and commercial housing projects should be fully renovated. For the exclusive part of the owner, the menu decoration service should be provided to meet the different needs of the owner. The competent department of housing and urban construction should strengthen the supervision and management of the main responsible units such as full decoration construction, design, construction, supervision, material supply and testing. , do not perform the main responsibility shall be ordered to make rectification, if the circumstances are serious, record bad behavior according to law.

Twenty-two, strict delivery management. When the house is delivered, the construction unit shall prepare a special instruction manual for passive ultra-low energy consumption buildings, and provide it to the property management unit and the owners of commercial housing projects. Special instructions should include energy-saving technical indicators, building plan and indicate the position of sealed layer, instructions on the use and maintenance of doors, windows and equipment, matters needing attention, etc. After the house is delivered for use, the property management unit should strictly manage the interior decoration of the house, and it is strictly forbidden for the decorator or decoration enterprise to dismantle the doors, windows and house structure at will during the decoration and use, and it is strictly forbidden for the owner to nail and drill holes in the sealed layer to destroy the sealed layer during the decoration and use, so as to ensure the use effect of passive ultra-low energy-consumption buildings.

Twenty-three, the implementation of post evaluation system. Passive ultra-low energy consumption construction projects invested by the government and enjoying government encouragement policies shall be evaluated after the project has been put into normal use for one year and the utilization rate has reached more than 60%. Post-evaluation work should be carried out under the supervision of the competent department of housing and urban and rural construction where the project is located, and entrusted by the construction unit to a third-party evaluation agency. If the post-evaluation conclusion is that the actual project is inconsistent with the design, the local housing and urban-rural construction department shall order the relevant responsible subjects to make rectification within a time limit. Those who refuse to make rectification shall record the bad behavior of the responsible unit or person in accordance with the relevant provisions. If the circumstances are serious, credit punishment should be carried out.

Twenty-four, strengthen the responsibility of the competent department. The housing and urban-rural construction departments of cities and counties should strictly control the five key links of passive ultra-low energy-consumption building projects, such as access management, design evaluation, construction evaluation, completion acceptance and pre-sale fund supervision, and urge the construction, design, drawing approval, construction, supervision and testing units to strictly implement the responsibilities of design drawing approval, construction preparation, construction process, evaluation acceptance and sales delivery. Strengthen the supervision of the whole process of standard implementation, and include the implementation of the main responsibilities of all parties in the scope of supervision and inspection and corporate integrity evaluation.

Twenty-five, increase penalties for violations. City, county housing and urban construction departments in charge of the existence of violations of mandatory energy-saving standards, the use of substandard materials and other illegal acts of the responsible units and responsible persons, according to the law to increase penalties, to take shutdown rectification, fines, revocation of qualifications and other ways to punish; Those who publish false advertisements for passive ultra-low energy-consumption buildings shall be handed over to relevant departments for investigation and punishment according to law; Supervision and management personnel do not perform their duties in the process of supervision, and shall be investigated for administrative responsibility according to laws and regulations.

02

Guidelines for Post-evaluation of Passive Ultra-low Energy Consumption Buildings in Hebei Province

In order to improve the evaluation system of passive ultra-low-energy buildings and standardize the post-use evaluation of passive ultra-low-energy buildings, the Provincial Department of Housing and Urban-Rural Development recently formulated and issued the Post-use Evaluation Guide for Passive Ultra-low-energy Buildings in Hebei Province to promote the high-quality development of passive ultra-low-energy buildings.

Post-evaluation of passive ultra-low energy-consumption buildings refers to the behavior of collecting operation data by means of detection and monitoring technology specified in the standard after the project is used 1 year, and comparing and analyzing the standardized conversion with the design data to judge the consistency between the operation effect of passive ultra-low energy-consumption buildings and the design objectives, and give suggestions for improvement.

The Guidelines include evaluation contents, evaluation criteria, evaluation procedures and evaluation conclusions, and are divided into six chapters: general principles, technical basis and evaluation conditions, evaluation reports, evaluation contents and calculation methods, evaluation conclusions and evaluation procedures. For more information about passive house policy, please visit the website of passive house House.

The Guidelines clearly point out that the post-evaluation content of passive ultra-low energy-consumption buildings should include indoor environmental parameters, energy consumption parameters, performance parameters of external envelope structures and performance parameters of fresh air equipment; Indoor environment and energy consumption parameters include design parameters and operation data. The design parameters should adopt the data in the construction drawing design, and the operation data should adopt the actual test data according to the energy efficiency test standard of passive ultra-low energy consumption buildings in Hebei Province.

When the positive deviation between the measured indoor noise and energy consumption and the design value (design correction value) does not exceed 10% of the design value (design correction value), it can be assessed as conforming to the actual design, otherwise it can be assessed as not conforming to the actual design. When the actual situation is inconsistent with the design, the reasons for the difference should be comprehensively analyzed according to the measured thermal performance of the envelope, the heat recovery efficiency of fresh air, the noise after installation of fresh air units, and the improvement suggestions should be given.