Bitumen membranes are a proven and widely specified waterproofing solution for flat roof construction, offering reliable protection for a variety of building types and roof configurations. SikaShield® bituminous roofing membranes are designed to provide durable roof waterproofing for applications including flat roofs, green roofs, blue roofs, solar roofs, terraces, balconies and podium decks. Available in a range of system options, SikaShield® membranes combine selected polymer-modified bitumen technologies to enhance properties such as flexibility, heat resistance and durability. Supported by a complete roofing system including vapour control layers, insulation, drainage components and accessories, SikaShield® roofing solutions are suitable for both new build and refurbishment projects where long-term waterproofing performance is required.

The SikaShield® roof system* is FM approved since April 2023.

FM Approvals tests and certifies property damage prevention products and systems for property damage prevention - for use in commercial and industrial facilities - to validate that they meet the highest performance, quality and safety standards.

* The FM approved SikaShield® roofing system includes the following equipment: SikaShield® HB79 MG 4 mm, SikaShield® E54 PE 3 mm, SikaShield® E74 PE SA 3 mm, SikaShield® VB P42 S 3 mm.

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Sika Bitumen Roof System

1. Cap Sheet

1a. Self-Adhesive option
SikaShield® E79 MG SA 4 mm

 1b. Torch on options
SikaShield® HB79 Tex 4 mm, 
SikaShield® HB79 MG 4 mm,
SikaShield® E75 MG 4,5 mm, 
SikaShield® E75 MG Pure-Air 5 kg/m2
SikaShield® P55 PE RT 4 mm

2. Base Sheet / Underlay

2a. Self-Adhesive option
SikaShield® E74 PE SA 3 mm

2b. Torched on option
SikaShield® E54 PE 3 mm

3. Thermal Insulation 

Sikatherm® PIR GT
Sikatherm® MW DD

4. Vapour Control Layer

4a. Self-Adhesive option
SikaShield® VB E71 PE SA 2,4 mm

4b. Torched on options
SikaShield® VB P41 S 3 mm
SikaShield® VB P42 S 3 mm

  • Complete range of torch and self-adhesive bituminous membranes
  • Compliance with the Safe2Torch guidance published July 2017 by the NFRC
  • Reduced risks for customers and contractors
  • High mechanical properties and durability
  • CE marking and Declaration of Performance to EN 13707 – Reinforced bitumen sheets for roof waterproofing
  • External fire performance tested (as a system) according to ENV 1187 & ASTM E108 and classified according to EN 13501-5: BROOF (t4)
  • BBA certified
  • FM Approved under the FM4470 standard
  • FLL certified options for root resistance (green, brown and blue roof applications)
  • Flat roofs
  • Balconies and terraces
  • Green roof systems
  • Blue roof systems
  • Solar roof systems
  • Decks and car parks  
  • Protection of various substrates in a wide range of applications as exposed single layer or as upper layer in systems without permanent heavy surface protection

Typical Applications for Bitumen Roofs

Flat Roofs

Builiding with green roof in the mountains

Green Roofs

Comet hangar roof after renovation of bitumen roof

Pitched Roofs

Application of bituminous membrane on a podium

Podiums

Bitumen Terrace of Residence building in Muehlau Kirchgasse

Terraces

Bituminous membrane on the roof

Roof Refurbishments

FAQ

What are bitumen roofing membranes?

Bitumen roofing membranes are durable, flexible waterproofing layers made from modified bitumen. They are commonly used in flat roof construction to provide long-lasting protection against water ingress and environmental exposure.

Posted on: 05/08/2025
What types of bitumen membranes does Sika offer?

Sika offers a full range of bitumen membranes under the SikaShield® brand, including torch-applied and self-adhesive systems. These cover everything from vapour control layers to waterproofing and cap sheets.

Posted on: 05/08/2025
What are the benefits of using bitumen membranes in roofing?

Bitumen membranes are known for their high durability, excellent weather and UV resistance, and long service life. They offer strong adhesion to substrates, are compatible with insulation systems, and are suitable for both new build and refurbishment projects.

Posted on: 05/08/2025
Are Sika bitumen membranes compatible with green roofs?

Yes, SikaShield® P55 PE RT 4 mm is a root-resistant bitumen membrane specifically designed for green roofs. It contains an anti-root additive and offers resistance to humic acids and fertilisers, making it ideal for use beneath green roofing systems. Learn more about SikaShield® P55 PE RT 4 mm here.

Posted on: 05/08/2025
What installation methods are available for Sika bitumen membranes?

Sika offers bitumen membranes that can be installed using torch-applied or self-adhesive methods.

Posted on: 05/08/2025
Are Sika bitumen membranes suitable for roof refurbishment?

Yes, bitumen membranes are widely used in refurbishment projects. Sika offers solutions for overlaying existing roofs, improving their waterproofing performance without requiring a full roof replacement. For tailored advice, contact one of our technical advisors here to discuss your specific project requirements.

Posted on: 05/08/2025
Reinforced Bituminous Membranes

Contact Us

Our technical experts can help you identify the most suitable bitumen membrane system for your project. Contact us via the form below for support with product selection, system specification, detailing and installation.