Why Choose Bitumen as a Roof System?

SikaShield Bitumen Roof

Sika's bituminous roof solutions come in two different forms: reinforced membranes and also hot melt structural waterproofing. Our bituminous membranes are formed of a reinforced; polymer modified bituminous compound, providing a high quality roof waterproofing solution. Our hot melt structural waterproofing system is an outstanding system, it is BBA certified to last the design life of the structure to which it is installed. Both bituminous technologies are robust waterproofing solutions, and have their own individual system features and benefits. However, with any roofing specification, it's important to understand where each of these technologies are most suitable and our technical team can support with bespoke design advice to suit the individual project requirements.

Sika Reinforced Bituminous Roof Systems Product Set Achieves Verification from CCPI

Single Ply CCPI

We’re delighted that Reinforced Bituminous roof systems by Sika now carry the CCPI mark, helping to provide assurance to product users that the product information for these products is clear, accurate, accessible, up-to-date and unambiguous. We’re proud to be working proactively with the CCPI to raise standards in our product information management.

SikaShield® Reinforced Bituminous Membranes

SikaShield BBA

Build-Up of SikaShield® Bituminous Membranes


Bituminous membranes are a versatile technology. The correct combination of raw materials and layers can offer a variety of performance and durability aspects, therefore allowing it to be used in a wide range of applications. Below is more information on how a membrane is configured.


SikaShield® Hot Melt Structural Waterproofing


Build-Up of SikaShield® Hot Melt Structural Waterproofing

Sika's hot melt structural waterproofing comprises of a liquid-applied membrane, used for inverted flat roofing areas, podiums, walkways or balconies due to its non-tracking monolithic state.

The hot melt waterproofing system is ideal for new build construction sites, as the system can be trafficked soon after installation, which is a great advantage for busy sites where other working trades require access to the roof. The durability and longevity of the system provides the perfect solution for high traffic flat roofing areas.

As a system, it can be installed all year round, and is backed with on-site support from Sika's roofing technical teams.

Typical Application Areas for Bitumen

Comet hangar roof after renovation of bitumen roof

Flat Roofing

Bitumen Terrace of Residence building in Muehlau Kirchgasse


Application of bituminous membrane on a podium


Builiding with green roof in the mountains

Green Roofs

Types of Bitumen Roof Technologies

Torch-applied Bituminous Membranes

bitumin example
Main Uses
  • Exposed roof areas
  • Inverted roofs under protective layers of ballast 
  • Balconies and terraces
  • Protection of various substrates in a wide range of applications
  • Green roofs
  • Fully-bonded system
  • Resistant to the most extreme weather conditions
  • Ease of maintenance
  • Excellent mechanical properties
  • High resistance to mechanical damage and punctures

Self-adhesive Bituminous Membranes

bitumin example 2
Main Uses
  • Combustable substrates
  • Small areas or those areas with difficult access
  • Flame free applciation
  • NFRC Safe2Torch compliant
  • Quicker installation
  • Excellent adhesion, even at low temperatures