One drop-leaf is a clever solution for keeping out draughts and noise at doors. Such a solution is an integrated strip that is invisibly fitted into the bottom of a door. As soon as the door closes, the drop-down seal automatically lowers. The seal thus closes the gap between the door and the floor.

The drop-down threshold of the Aluwdoors on the hinged doors

How does a drop-down seal work?

An automatic drop seal consists of an extra aluminium strip at the bottom of the door. Inside is a spring mechanism with a rubber or silicone sealing strip. As soon as the door closes, a small pin presses against the frame. This causes the strip to slide downwards, sealing the gap between the door and the floor.

When opening the door, the strip automatically springs back into the profile. This allows the door to move freely and prevents the seal from dragging across the floor.

The benefits of a drop-down door seal

An automatic door bottom seal completely seals the gap at doors as soon as they close. This increases comfort in the home. Draughts and cold do not get the chance to move into another room. As a result, the temperature remains more stable. This helps with insulating the home.

A threshold is completely concealed within the aluminium profile, preserving the sleek design of the door. When opened, the threshold automatically springs upwards so that the door moves unimpeded across the floor without touching it. Because the system operates automatically, ease of use is optimal.

When is a drop-down seal used?

An automatic door seal is useful in places where you want to control the temperature in the house room by room. Think for example of a hallway that often feels colder than the living room. Without a seal under the door, that cold is drawn straight into the living room. By sealing this gap at the bottom, you prevent this heat loss and the temperature in the living room remains more stable.

Also with aluminium doors it is a practical addition to a bedroom or home office. After all, a drop-down door seal not only keeps out draughts, but also subtly dampens noise from other rooms.

Because aluminium doors are lightweight and operate smoothly, you won't notice the drop seal at all when opening and closing the door. A drop seal is an effective solution in rooms where peace and quiet and a pleasant climate are important.

This is how a drop-down seal is applied

A door must always fit properly to prevent heat loss. With many doors, a small gap often remains open at the bottom to prevent friction. However, that opening causes heat loss, amongst other things.

A drop-down door seal prevents the door from dragging: the strip only drops down as soon as the door closes, meaning there is no permanent gap. This keeps a aluminium door The Aluwdoors opens and closes smoothly, yet still seals the door completely. This means you won’t be bothered by draughts either.

Installation and maintenance of a drop-down seal

An acoustic drop-down seal is adjusted so that the strip makes smooth and complete contact with the floor. The system is designed to be durable and will last as long as the door itself. Maintenance of drop-down seals is minimal. Ensure the rubber seal remains clean by occasionally removing dust and dirt with a cloth.

Alternatives to a drop-down door seal

The drop-down door seal is often used in situations where you want to seal off a room completely. This can also be done with thresholds, but these are more difficult to install. A drop-down seal is then a better solution. Think for example of a meeting room, in which you want to keep out draughts and noise.

Would you like to know which option is most suitable for your situation? Drop by one of our showrooms. These are located in Nunspeet, Veghel, Mijdrecht of Barendrecht. Otherwise, take it straight. contact us for personal advice.