What is BS EN 1264‑4 about?
The BS EN 1264 series gives guidelines for surface embedded heating and cooling systems installed in buildings, residential and non-residential (e.g., office, public, commercial and industrial buildings) and focuses on systems installed for the purpose of thermal comfort.
The BS EN 1264 series gives guidelines for water-based heating and cooling systems embedded into the enclosure surfaces of the room to be heated or to be cooled. It also specifies the use of other heating media instead of water, as appropriate.
The BS EN 1264 series specifies standardized product characteristics by calculating and testing the thermal output of heating for technical specifications and certification. For the design, construction and operation of these systems, see BS EN 1264‑3 and BS EN 1264‑4 for the types A, B, C, D, H, I and J. For the types E, F and G, see the EN ISO 11855 series.
The systems specified in The BS EN 1264 series are adjoined to the structural base of the enclosure surfaces of the building, mounted directly or with fixing supports.
BS EN 1264‑4 specifies uniform requirements for the design and the construction of heating and cooling floor, ceiling, and wall structures to ensure that the heating/cooling systems are suited to the particular application.
Note1: The BS EN 1264 series does not specify ceiling systems mounted in a suspended ceiling with a designed open-air gap between the system and the building structure which allows the thermally induced circulation of the air. The thermal output of these systems can be determined according to the EN 14037 series and EN 14240.
Note2: The requirements specified by the EN 1264 series apply only to the components of the heating/cooling systems which are part of the heating/cooling system. BS EN 1264‑4 does not cover other elements which are not part of the heating/cooling system.
Who is BS EN 1264‑4 for?
BS EN 1264‑4 on water-based heating and cooling systems is applicable to:
- Commercial HVAC manufacturers
- Underfloor Heating System Manufacturers
- Manufacturers of components used in heating and cooling systems
- Builders / Architects
Why should you use BS EN 1264‑4?
Poor installation affects not only thermal performance; but also the safe, smooth operation of moving parts. Aside from seal failures, over 80% of service problems result from poor installation practices.
BS EN 1264‑4 guides you with the installation of water-based surface embedded heating and cooling systems which includes building layers and building components. BS EN 1264‑4 helps you to identify whether the flooring and ceiling can accommodate these heating and cooling systems.
BS EN 1264‑4 also provides you with the leak test procedure to ensure quality installation.
What’s changed since the last update?
BS EN 1264‑4:2021 supersedes BS EN 1264‑4:2009, which is withdrawn. BS EN 1264‑4:2021 includes some technical and editorial changes with respect to BS EN 1264‑4:2009. These include:
- Clarification of the Scope and improved wording, especially the term prove method
- Addition of a new subclause 4.1, Hydronic balancing, Addition of a paragraph in 4.2.2.1, Supporting base, Addition of a new subclause 4.2.2.4, Other layers, Addition of a new subclause 4.2.2.9.5.4, tubes damage, Addition of a new subclause 4.2.5, Heating up for readiness for covering, Addition of a new Annex B, Initial heating up protocol
- Modification of 4.2.2.2, Insulating layers, Modification of 4.2.2.9, Weight-bearing layer, Modification of 4.2.3, Leak test, Modification of 4.2.4, Initial heat-up of the emission system, Modification of 4.3.3 Insulation.