Seal leaking skylights yourself

What you need:

• Construction foam
• hammer
• chisel
• Finished plaster
• spatula
• Window putty
• knife

Expose and seal a leaky roof window

Lots of leaky skylights can be responsible for major damage to room walls and floors when it rains. The damage can be caused, for example, by defective seals, but also by improper window installation. To a leaky window then to get tight again, you need to expose the window frame first.

• To seal the window frame for a leaky roof window, you should expose the entire frame. Often the window frame is screwed to panels or the frame was plastered with the wall.
• In these cases, you should either remove the bezels or take a small hammer and chisel and knock off the plaster. In both cases you should now be able to see screw connections connecting the window to the walls.
• The spaces between the wall and the window should be sprayed with construction foam. If you have not worked properly here, moisture can penetrate.
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• So you should buy a can of construction foam and seal the entire frame again properly. Spray all cavities fully with the construction foam.


Insert windows - instructions

Inserting windows is not a special science. A skilled do-it-yourselfer can ...

• After the construction foam has dried, you can reattach the panels or plaster the frame again.

Avoid moisture with new putty

• There is also the possibility that a leaky roof window allows moisture to penetrate into the interior due to a defect in the window putty. In this case, you need to remove the old window putty and insert new ones.
• So take a small knife and remove a large area of ​​the window putty from the leak. Then apply new window putty in this area. Then smooth it out with a damp finger and let it dry.

When scraping out the window putty, you should never work with the knife in the direction of your body.