Additional information on energy savings and thermal protection – building insulation requirements
In terms of industrial buildings, thermal comfort in the workplace, often in combination with proper technological conditions, facilitates the manufacturing process.
Thermal and technical requirements for manufacturing facilities are specified in the Building Act and its implementing regulations.
A number of thermal comfort requirements in the workplace are governed by the Labor Code and its implementing regulations. A special set of rules applies to refrigerated and frozen-food warehouses. Requirements for different types of refrigeration and freezer facilities are regulated by the ČSN 148102 Standard on Refrigeration and Freezer Storage Thermal Insulation.
External cladding insulation must comply with energy-saving and thermal protection requirements to achieve the required microclimate and to minimize heating and/or air-conditioning costs.
The basic thermal insulation values for external cladding defined by building regulations are as follows:
- The lowest internal surface temperature of a structure.
- The heat permeability coefficient (formerly a thermal resistance value)
- The annual condensation value and the volume of condensed vapor within a structure.
- Specific heat consumption (formerly the total thermal characteristic of a building).
Section 47 of the Building Act defines the materials to be used for construction purposes:
- Materials and structural components designed and utilized for construction purposes shall be designed in a manner that ensures compliance with requirements for mechanical resistance and stability, fire safety, hygiene, health and environmental protection, operational safety (in consideration of disabled persons and persons with reduced mobility), noise pollution prevention, energy saving and thermal protection of properly constructed and maintained buildings for the duration of their projected service life.
- The material properties with a major effect on the final construction quality shall be verified in accordance with relevant regulations and in reference to the requirements stipulated in article 1 above.
Building energy requirements were formerly regulated by the ČSN 73 0540-2 Standard. Building energy requirement issues are currently addressed by Act No. 406⁄2000 Coll., on Energy Management, namely Regulation No. 219⁄2001 Coll., “specifying details of efficient energy utilization for the heating of buildings”.
This regulation defines the required specific heat consumption values to be achieved and the documentation demonstrating the energy performance of a building, known as energy certificates. There are two types of energy certificates:
- energy certificate data - residential buildings
- energy certificate data - tertiary, industrial and agricultural buildings