This is where the following may occur:
- uncontrolled heat loss,
- Condensation of moisture,
- Point freezing
Why does this happen and how can it be prevented?
Thermal bridge — an invisible enemy
A thermal bridge is a spot where heat escapes faster than through the surrounding materials.
In the threshold area, the problem is especially severe because this is where the following meet:
- Interior of the building (warm and dry)
- Outdoor environment (cold, rain, wind)
- Floor (connecting the wall to the threshold)
on top of that comes a mix of materials: PVC, aluminium, concrete and mounting foam — each material conducts heat differently. Without proper design, a thermal bridge forms almost automatically.
effects of a thermal bridge
For the user
- cold “coming” from the floor
- moisture condensation → mould, fungi, damage
- higher heating bills
for the manufacturer
- worse energy performance and difficulties in meeting technical requirements
- more complaints (moisture, freezing, deformation)
- the need for additional and costly corrections
Key elements of eliminating thermal bridges
Eliminating a thermal bridge in the threshold requires a comprehensive design approach.
That is why Alumaster thresholds are created based on an analysis of materials and their thermal parameters, the expected operating conditions and precise compatibility with the door system.
Combi Plan barrier-free threshold
- smooth connection between the interior and exterior flooring
- the absence of protruding elements means greater comfort and no spots where cold can accumulate.
TPE thermoplastic elastomer gaskets
- remain flexible at low temperatures
- resistant to weather conditions for many seasons
- permanently integrated into the structure, which eliminates the risk of leakage
Layered, insulated threshold construction
- aluminium and PVC separated by low-thermal-conductivity insulators
- effective interruption of thermal conduction
- Uw coefficient below 0.75 W/(m²K) — meets passive house requirements
Effect for the user
- stable temperature in the threshold area
- no cold or moisture near the floor
- protection of the joinery, flooring and finishes
- high tightness and acoustics (watertightness up to class 9A)
Effect for the manufacturer
- Fewer complaints and service issues
- simpler installation and consistent quality
- better catalogue performance parameters
- an advantage in tender documentation and energy audits
a well-designed threshold construction – fewer errors
Thanks to their well-designed construction, Alumaster thresholds:
- eliminate thermal bridges,
- facilitate installation,
- increase the durability and energy efficiency of doors,
- They give you an edge in sales — because they don’t just work on paper, but in everyday use.
Do you want to eliminate thermal bridges in your doors?
Talk to our technical consultant.
We will show you how Alumaster thresholds can improve the thermal performance of your doors, reduce the number of complaints, and increase the value of your product.
Together we will eliminate thermal bridges. Without compromises.
