Door against cold and sound insulation

By insulating a door to achieve different effects. On the one hand, the insulation should keep heat in buildings and prevent the flow of energy, on the other hand, acoustic properties are crucial. Thermal insulation is especially important for doors leading out of the building.

Heat and / or sound insulation

Before a door is insulated or insulated, it is important to determine the goal of the insulation. When the transmittance of energy is to be reduced, the heat transfer coefficient (U value) of the selected insulation material plays the biggest role.

In sound-oriented dams, room acoustics must be considered. These include in particular vibration behavior of door leaves and their sound-enhancing effect as a membrane.

Refrigeration and sound bridges

In all cases of the insulation of doors, the connection and contact of door frame, door frame and masonry plays an important role. Damming also always involves sealing the door. Open cracks and cracks can make the insulation effect of insulated door leaves obsolete.

Cold or acoustic bridges caused by the direct contact of rigid components and materials pry out the effect of any other door seal applied. They must be interrupted by materials with elastic properties. Typical examples are sealing and Dämmbänder between frames and masonry and insulation on hinges and fittings.

Wooden door and room door

In the case of door insulation on a wooden door or room door, a not insignificant role must be taken, especially in the area insulation on the door leaf. Many wooden doors consist of a tube chip filling. The most visually elegant type of insulation is the opening of the door panel and the filling of the cavities with insulation material. Suitable for this are:

  • Stone or glass wool
  • hemp fibers

For externally applied door insulation, the following materials are used:

  • foam
  • Styrofoam
  • bitumen sheet
  • Polyethylene plate

So you dam a door

  • insulation
  • adhesive
  • wood glue
  • Spare wooden bar
  • cutting tool
  • Two trestles
  • Chisel or chisel

1. Planning

First determine which insulation properties should be achieved. Check for possible sound or cold bridges. Trim the insulation material you want to apply to the door leaf or need to break the bridges.

2. Unhook the door

3. Glue the door leaf

Depending on the type of insulation chosen, apply the appropriate adhesive to the door leaf. Either remove the door fittings on the door side to be glued or cut corresponding recesses into the insulation material.

4. Fill the door cavity

For a hollow door, lift the strip between the door leaf panels at the lower edge of the door leaf. Plug the insulation material between the tube girders.

Tips & Tricks

Apart from all insulation made directly on the door leaf or the door frame, there is a very effective supplement or alternative. When you make a door curtain yourself, you not only support the insulation of the door. Door and curtain together form a kind of temperature lock, which creates a pleasant transition from outside to inside and vice versa, especially in the heating season.

Video Board: How To Soundproof Your Door or Apartment. Under Door Draft Stopper and Blocker Prevent Bugs