Thresholds - MACO Products

Joining forces to prevent condensation water

Behind a door, which lives up to its name, lies a threshold which perfectly enhances it and plays a decisive role

Why does condensation water occur?

​Condensation water forms when...
...There is a temperature difference between inside and outside.
...It is damp indoors. Moisture forms due to a variety of indoor activities, such as cooking, showering, ironing – but only when people are there. The higher the indoor temperature, the greater the proportion of water vapour in the air.

How can I avoid mould and condensation water?

The higher the relative humidity in a room, the higher the indoor temperature needs to be on the surfaces of windows, doors and thresholds (inside surface temperature) to prevent condensation water. The inside surface temperature is thus the temperature of the walls, the glass surface or the frame, measured on the inside. If this temperature is around the dew point for a long period of time, then there is a risk that mould will form on these surfaces. To prevent this, the minimum surface temperature should be higher than the dew point.

Where does condensation water form?

If moist, warm air inside meets a cold surface, then condensation water will form there. Critical points are thus cold areas, i.e. windows, doors and thresholds on which thermal bridges can arise. dew point.

The right model for your needs

Personal Threshold

Adapted to suit your door

Removable Threshold

High-performance on the test rig


D​ifferent materials with different densities, extruded together in a complex geometry designed to close doors and windows perfectly...
Maco weatherseals are little technological giants. With a considerable experience in research and development, the use of quality materials, cutting-edge manufacturing processes and computer simulations on how the weatherseals will behave during compression, we can find the perfect combination of material shapes and features.

Strong Arguments


Thermal Barrier

A Transit threshold ensures that thermal bridges cannot arise under a door, thereby increasing insulation and sealing performance. You can rest assured that no mould or condensation water will form. All Transit thresholds are made from PVC and aluminium and have an optimum thermal barrier: the surface temperature at the point of contact between the ground (inside) and threshold is thus always kept above 12.5°C.


No Ingress Of Water Or Air

​In order to allow the lift&slide systems (HS) to slide without friction and avoid the passage of air or water, you need weatherseals with a special geometry and high quality materials. Maco weatherseals enclose the whole sliding system without interruptions thanks to their welded corners.


Suitable For All Hardware

​The Personal threshold offers an array of options that you won’t want to miss. Such as metal reinforcement, which is provided for screw fixing the striker plates and concealed pivot posts, thereby ensuring additional hold and security. The cover strip guarantees an attractive design..



Both the threshold and the equalizing pieces for the frame are adapted to the geometry of the various profiles.


Building Connection

The Personal threshold with connection bracket enables easy sealing on the outside, thereby guaranteeing high-quality installation of the door unit.


Eliminate Obstacles

The Transit thresholds offer all limiting sizes that are needed for the production of doors without architectural barriers. Standard-compliant in the various EU states with structural dimensions of 20 to a maximum of 25 mm.

Further Information

The All-Round Perfect Door