Stick bitumen - you have to pay attention

Roofing board can be fixed to the ground with roofsticks - but you do not have to. Roofing felt can also be glued. How to do that, and which glue is used for these bitumen layers, read in this article.

Gluing or nailing

In many cases, roofing felt is fixed with nails when laid, the so-called roofing felt pins. That is not the only possibility. You can also bond roofing felt over the entire surface.

As adhesives come into question:

  • so-called cold glue
  • Bitumen hot glue or
  • from the outset self-adhesive roofing boards (but much more expensive)

Advantages of bonding

The advantage of gluing is that a completely coherent, completely waterproof surface is created. When nailing roofing felt with roofing pens, waterlogging can still be a problem despite the overlapping - this is impossible with bonded roofing felt. The thus occupied area is completely waterproof.

An important role plays in the sealing of flat roofs or roofs with very low roof pitches. On a pitched roof, water can drain off very quickly - nail-clipping may still be enough, because hardly any waterlogging can form.

If the roof is shallower, stagnant water can penetrate under nailed roofing felt over time. For this reason is glued.

Procedure for bonding

For the cold adhesive, you must first roll out the sheets and fix them. Then brush the adhesive evenly with a brush. The previously rolled up webs are then placed individually in the adhesive and passed especially at the edges of the webs thoroughly.

With the hot bitumen adhesive, the mass must be heated evenly with a gas burner. It is heated with a gas burner. This requires some experience, so that the webs later keep even in all places evenly and no damage occurs during installation.

Self-adhesive roofing felt at first seems easier to relocate, but that is deceptive. Here you must be very careful that you lift the webs to remove the protective film on the bottom only in the transverse direction, so there are no kinks and cracks later. After laying the individual sheets, you must once again press firmly all tracks. The process is therefore - despite the higher cost of the roofing felt - not much less expensive than when attaching with cold glue.

Tips & Tricks

After gluing, you can also fix sheets with roof card pins. Roofing boards are always laid on top of each other in two layers. If necessary and after appropriate wear, an additional layer can simply be glued on top to restore sufficient tightness.

Video Board: Surface dressing