BS EN 12412-4 is the fourth part of the BS EN 12412 multi-series on calculation and measurement methods for the design and evaluation of the thermal performance of buildings and building components.
BS EN 12412-4 specifies a method, based on ISO 8990 and ISO 12567-1, to measure the overall thermal transmittance of a roller shutter box in a hot box. This includes all effects of geometrical and material characteristics in a test specimen.
The method is designed to provide both standardised tests which enable a fair comparison of different products to be made, and specific tests on products for practical application purposes.
The determination of the overall thermal transmittance is performed for conditions that will correspond to a similar situation of the roller shutter box in practice.
Note: Edge effects occurring outside of the perimeter of the specimen are excluded. Furthermore, energy transfer due to solar radiation is not taken into account, and air leakage is excluded.
BS EN 12412-4 on determining thermal transmittance of roller shutter boxes by hot box method is useful for:
Thermal transmittance is the quantity that indicates the quantity of thermal power exchanged by a material per unit of surface and the difference in temperature. Components with low thermal transmittance contribute to energy saving within the apartment as they exclude less heat from the room.
BS EN 12412-4 helps you to perform the hotbox method for determining the thermal transmittance of roller shutter boxes by providing you with a detailed account of its necessary apparatus requirements and step-by-step procedure. The method described in BS EN 12412-4 provides data that can be used for calculating the overall thermal performance of windows and doors equipped with roller shutters.
In conclusion, by enabling you to determine the thermal transmittance of roller shutter boxes, BS EN 12412-4 helps you to improve the overall thermal performance of buildings and building components.EN 12412-4:2003