GB/T 34606-2017 in English
VALIDEvaluation method of overall energy-saving performance of building envelope
- Issued on:2017-10-14
- Implemented on:2018-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
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《GB/T 34606-2017建筑围护结构整体节能性能评价方法》由TC452（全国建筑节能标准化技术委员会）归口，主管部门为住房和城乡建设部。
Introduction
Interpretation of the National Standard of the People's Republic of China GB/T 34606-2017
I. Overview of the Standard
GB/T 34606-2017 mainly stipulates the evaluation method of the overall energy-saving performance of building envelopes, and is applicable to the overall energy-saving evaluation of civil building envelopes. The standard covers the definition of terms, individual performance indicators, weight distribution and scoring system.
II. Analysis of Core Content
| Item | Description | Weight |
|---|---|---|
| Heat Transfer Coefficient (Q1) | Measures the heat transfer efficiency of the envelope structure, using the average value calculation method. | 0.45 |
| Thermal insulation performance (Q2) | Thermal insulation effect of the envelope structure is evaluated through the temperature difference Δt. | 0.05 |
| Structural thermal bridge (Q3) | Reflects the impact of heat flow-intensive parts in the building structure on energy consumption. | 0.10 |
III. Scoring system for individual performance
Example of scoring for heat transfer coefficient
| Zc value range | Score |
|---|---|
| Zc ≤ 0.30 | 100 |
| 0.40 < Zc ≤ 0.50 | 80 |
IV. Implementation suggestions
In actual applications, it is recommended to give priority to the test report data and conduct on-site evaluation in combination with the thermal defect detector. The setting of reference buildings should strictly follow the standard requirements to ensure the accuracy of comparative analysis.
V. Significance and Challenges
This standard provides a scientific basis and evaluation method for building energy conservation, which helps to reduce energy consumption. However, in practical applications, attention should be paid to the accuracy of test data and the selection of reference buildings.
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