Do you feel a light breeze when you pass your hand in front of your window? Is cold air passing under your front door? Do you see the lamppost under the balcony door? On a windy day, if you light a candle in your home, do you notice the flame dancing, even though the windows are closed?

If you answer positively to any of these questions, you should consider taking action to prevent air leaks. Covering the gaps prevents heat loss in cold weather, but also reduces the amount of dust entering our home and improves the insulation against outside noise. It is estimated that gaps in doors and windows can be responsible for 25% of heat loss in homes, so the heating savings we can achieve with a good seal is really significant.

In hardware and DIY stores we can find various products designed to prevent annoying air leaks. We present the most common:

Weather stripping.

These are strips of foam, rubber, silicone or brush that adhere to window or door frames so that they close tightly (see image). The different consistencies and thicknesses allow us to choose the most suitable for the type of hole to be sealed. It is important to take into account the width of the slots and the type of doors or windows.

For example, foam weatherstripping is more recommended for small spaces (between 1 and 4mm) and light windows because they are not very consistent. On the contrary, silicone weatherstripping makes it possible to cover larger spaces and they are more resistant.

Weatherstripping generally has a relatively short lifespan. This is why care must be taken to change them when they have deteriorated and do not retain their sealing properties.

These products are generally sold in self-adhesive rolls and are affordable. For example, a 5 meter roll of adhesive foam weatherstripping costs about $ 3.

Installation tips.

  1. The weatherstripping is usually placed on the frame, in the space where it meets the door or window when we close.
  2. Remove dust from the area where you will adhere the weatherstripping with a dry cloth.
  3. Wipe down the area where the weatherstripping will be attached with a cloth dampened in alcohol. Wait a few minutes for the alcohol to evaporate.
  4. Measure the length of the door or window and cut a piece of tape to the appropriate size.
  5. Peel off the protective tape when you stick the weather stripping on the frame. To ensure good adhesion, briefly press the weather stripping against the frame.

Low door.

These are elements designed to cover the space between the door and the floor. The most common types of base are:

  • Fixed door under: it is a band which adheres to the door, in its lower part. The part that comes in contact with the ground is usually rubber or brush.
  • Double roll-up door under: It consists of two rollers, which go on both sides of the door, connected by a thin sheet that remains underneath. It doesn’t need to be screwed on or glued, so it can be put on and taken off at will. It is a comfortable and simple option when the space under the door is large.
  • Up-and-over door under: It has a fixed part, screwed to the door, and a movable part, which tilts, reaching the ground, when the door is closed. In this way, it is prevented from slipping on the floor when opening and closing, and can scratch it.

In this video, produced by bricomanĂ­a, you will see, step by step, the process of installing a base in the front door of a house.
In short, weatherstripping and door bottoms are practical, versatile and easy to install products that help us improve the insulation of our home.


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