Draught seals prevent unwanted air from entering or escaping through gaps around doors and windows. By blocking these draughts, they help maintain a more consistent indoor temperature, reducing the need for excessive heating in winter or cooling in summer. This, in turn, improves energy efficiency by lowering the amount of energy needed to keep a home or building comfortable.
There are several types of draught seals available, including:
- Brush Strips: Made from bristles, these are often used on doors to prevent air infiltration while allowing movement.
- Foam strips: Self-adhesive foam that compresses when a window or door is closed, blocking air leaks.
- Rubber or silicone seals: Flexible materials that fit around door or window frames, offering a tight seal when closed.
- Thresholds: Prevent draughts end water ingress at the bottom of the door when the door is closed.
Each type of draught seal functions by covering gaps and preventing airflow, improving the thermal barrier between the interior and exterior.
By blocking draughts, these seals prevent heat loss in winter and reduce heat gain in summer, meaning less energy is required to heat or cool a building. As a result, energy bills are reduced, and heating and cooling systems do not have to work as hard, extending their lifespan.
Draught seals are typically made from materials such as rubber, silicone, foam, and plastic. Brush seals use nylon or other synthetic bristles, while door sweeps may incorporate metal or plastic backing with a sealing strip of rubber, vinyl, or silicone. These materials are specifically selected for their excellent insulating properties, as well as their resistance to UV exposure, water, and extreme temperatures.
To maximise the effectiveness of draught seals, ensure the surface is clean and dry before installation. Measure and cut the seal to the correct size, ensuring it fits snugly against the door or window frame without impeding movement. For adhesive seals, firmly press them into place to ensure they adhere properly. Regularly check and replace worn or damaged seals to maintain their effectiveness.
Some of the best and most reliable draught seal brands include:
- Deventer: A dutch firm that specialises in high-quality sealing profiles for wind, sound, and water insulation. Their unique concept and high tolerance capacity make them a leading choice for energy-efficient solutions.
- Schlegel: Originally an American brand, Schlegel is now owned by the British company Tyman PLC. Renowned for its high-quality weather seals, Schlegel offers a durable and effective range of seals for windows and doors, designed to reduce drafts.
- Exitex: Exitex is a well-established Irish brand specialising in sealing solutions for doors and windows. They provide a range of draught-proofing products for both residential and commercial buildings.
