Thus, a bituminous waterproofing membrane is classified as a flat roof, i.e. a roof with a slope of less than 2:12, does not mean that it is a custom bitumen roof.

To properly identify your own bituminous roof, you can look at the image shown in this post as the photos below. In more detail, however, a custom bitumen roof is known as the asphalt material that is completely rolled. Typically, the boards are about two to maximum three feet wide.

Membrane roof material is usually covered with special adhesives or even the “hot mop”, which is mainly tar and flame.

Service life of modified bitumen waterproofing membrane

The service life of a bituminous roof depends on many factors, such as the location of the house, maintenance and architectural solutions. However, factories suggest that a rolled membrane roof can last up to 20 years. That’s not true in Florida.

A house near the beach can experience a lot of wind. On the other hand, a house with lots of plants around may require constant maintenance so that the plants do not stand on the roof. Finally, a higher pitched roof can allow water to flow faster than a lower pitched roof.

bituminous waterproofing membrane


  •   Maintaining your roofs can easily extend the life of any roofing. Let’s see what you can do to keep your roof in good condition.
  •   Cut off all the plants from the roof.
  •   Sweep all plants / leaves on the roof. Stamp, stamp, stamp! You can use a little tar to make sure all the seams are covered.
  •   Repair with other custom bitumen if necessary.


There is also the possibility that you can cover your own bituminous waterproof roofing. This is done by applying aluminum paint, which is primarily rolled. However, you may be excluded from insurance, so keep that in mind. The inspector should label the roof as painted and the insurance company does not like that.

Covering the roof can extend the service life by another 5 years with special maintenance.

Can you easily walk on your own bitumen roof?

Yes, it is easy to use the bitumen roofing. As much longer as it is firmly constructed, it has to withstand pedestrian traffic. If necessary, strengthen the roof with sections that can accommodate heavy construction equipment or have a lot of foot movement.


With the right construction and maintenance, a bituminous waterproofing membrane will prove to be the longest-lasting feature the building can obtain. We prefer 2- or 3-layer systems for use under roof terraces and decks, as well as in very tight spaces.

Cold glue and self-adhesive coatings are relatively new on the market, but they offer many advantages. To learn more about this topic visit our website.