Laying a welding line works like this

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Bitumen sheets are laid on all flat roofs to protect against moisture. Over the years, however, these can show defects that need to be repaired as quickly as possible. How such a welding line is laid is to be shown below.

Lay the welding membrane on the roof.
Lay the welding membrane on the roof.

What you need:

  • Welding tracks
  • Electric scraper
  • Gas burner
  • knife

Flat roofs in particular should be checked regularly for damage. If there are already damp spots in the apartment, renovation will be very costly. If damage is discovered early, it can be repaired by replacing a welding line. With a little manual skills, you too can carry out such work. However, you should proceed slowly and very carefully, so that the subsequent tightness is guaranteed.

Laying a welding line - the preparations

  • You must first calculate the required size of the welding path. You will then receive this rolled up.
  • After you have obtained this, you still need a gas burner that you can borrow from the hardware store. Please have the operation of the device explained to you in order to avoid mistakes later.
  • Since the old welding line is covered with gravel, as in most cases, it has to be removed from a large area.
  • Now you have to remove the old web. Cut these open on both sides with the help of a knife and pull them off. Since this should be quite difficult, you should make do with an electric scraper, which you can also borrow from the hardware store.
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  • After that, you need to clean the area well.

Apply a new welding line - the work steps

  1. In order to lay the welding path, you have to work in pairs, as there are three work steps that must be carried out at the same time.
  2. Now take the roll and place it on one side. Make sure that this must overlap the two old strips. Now heat the beginning with the gas burner and press it firmly on the side.
  3. Now one person has to heat the welding strip with the torch until it melts slightly, while the other person carefully unrolls the strip and presses it on at the same time. You can easily do this with the shoes on. Make sure that the overlaps are pressed particularly well so that a connection is created.
  4. When the web is stuck, simply cut the rest off with a knife and heat the end again and press firmly.

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