Condensed moisture at the front door excites many owners not just because of damage to the repair, but also regarding the formation of moldy plaque on the door slopes. A serious problem is that moisture droplets in the cold season turn into icing as the door freezes to the door frame. In addition, “door sweating”, condensation and mold are not the best factors affecting human health, which should push for measures to combat a typical phenomenon.
The main causes of moisture on the front doors
The first reason for the formation of condensation on the front door is based on increased humidity when the rate exceeds 55%. Then the condensate collects on the surface, where the temperature is slightly below the "dew point". In winter, such a surface is precisely the front door.
It is important to adhere to a humidity of about 45% in the tenants' health premises. The humidity of the internal climate is affected by both ventilation devices and the temperature of the heated air in the room.
The second reason for condensate is hidden in low thermal insulation - a metal door is more prone to a large amount of condensate due to poor sealing between the metal sheet and the frame. In a typical embodiment, there is not enough air outflow for those purposes so that the vapors come out, but it is enough to deposit them on the surface.
Peculiar "cold bridges" with an increased rate of thermal conductivity on the front door are concentrated mainly on the door handle, eye, and the mock part. Vulnerable freezing points especially concern metal doors, in which heat transfer is increased.
The increased humidity in the room is associated with the supply and exhaust ventilation in the room
Equipping the house with metal-plastic windows and anti-vandal metal entrance doors, they do not always pay due attention to the supply and exhaust ventilation. An improperly equipped system or a complete lack of ventilation in the room leads to an increase in the humidity indicator inside.
There is no particular need to think about air inflow, since the old door made of wood was able to provide natural ventilation, letting in dry air from the outside. Humidity of only 65% can lead to a number of negative consequences and the formation of condensate.
