Selection Guidelines for Heat Equalizing Brackets Compatible with Different Insulation Boards
The selection of heat equalizing brackets for underfloor heating systems should be based on the type, density, thickness, and surface structure of the insulation board. Proper matching between the heat equalizing bracket and insulation layer can improve heat transfer efficiency, ensure stable pipe fixation, and prevent installation problems.
Matching Heat Equalizing Brackets with EPS Insulation Boards
EPS (Expanded Polystyrene) insulation boards are widely used in traditional underfloor heating systems due to their good insulation performance and cost efficiency. However, EPS has relatively lower compressive strength compared with other insulation materials.
When selecting heat equalizing brackets for EPS boards, it is important to consider the density and compression resistance of the insulation board. For lower-density EPS boards, brackets with reasonable contact area and moderate fixing force should be selected to prevent excessive pressure that may cause deformation.
For high-density EPS insulation boards, stronger fixing structures can be used to improve pipe stability and ensure effective heat conduction.
Matching Heat Equalizing Brackets with XPS Insulation Boards
XPS (Extruded Polystyrene) boards have a closed-cell structure and higher compressive strength, making them suitable for projects requiring better load-bearing performance.
When used with XPS insulation boards, heat equalizing brackets should have good penetration capability and stable mechanical locking performance. Since the surface of XPS boards is relatively dense, the bracket design should ensure sufficient anchoring depth to prevent loosening during construction.
XPS systems are often used in commercial buildings, renovation projects, and areas with higher floor load requirements.
Matching Heat Equalizing Brackets with Phenolic Foam Boards
Phenolic foam boards have excellent thermal insulation performance but are relatively brittle compared with EPS and XPS materials.
For phenolic insulation systems, the heat equalizing bracket should focus on reducing stress concentration during installation. Brackets with optimized leg design and suitable fixing force can prevent cracking or damage to the insulation layer.
Care should be taken during installation to avoid excessive pressure from staple guns or fixing tools.
Matching Heat Equalizing Brackets with Reflective Insulation Systems
Some underfloor heating structures use reflective films combined with insulation panels to improve thermal radiation performance. In these systems, heat equalizing brackets need to maintain stable contact with the pipe while avoiding damage to the reflective layer.
The bracket size, fixing depth, and installation method should match the complete insulation structure, ensuring that heat is transferred effectively without affecting the reflective performance.
Key Selection Factors
When choosing heat equalizing brackets for different insulation boards, the following factors should be considered:
Insulation board density: Higher-density boards usually require stronger fixing structures.
Bracket material: Aluminum heat equalizing brackets are commonly preferred due to their excellent thermal conductivity and corrosion resistance.
Bracket thickness and contact area: Larger contact surfaces can improve heat spreading efficiency.
Pipe diameter compatibility: The bracket groove should match the heating pipe diameter, such as 16mm or 20mm pipes.
Installation method: The fixing method should be compatible with staple guns, clips, or modular heating panels.
Conclusion
The performance of a heat equalizing bracket depends not only on its material but also on its compatibility with the insulation board system. Correct selection based on insulation type, mechanical strength, pipe specification, and installation conditions can maximize heat transfer efficiency and ensure reliable operation of the underfloor heating system.
References
EN 1264 — Water based surface embedded heating and cooling systems
ISO 11855 — Building environment design of radiant heating and cooling systems
ASTM C578 — Standard Specification for Rigid, Cellular Polystyrene Insulation
Manufacturer technical guidelines for underfloor heating insulation and heat distribution systems
