Green roofs place additional demands on the waterproofing layer, requiring resistance to moisture, root penetration and the conditions associated with planted roof systems. SikaShield® P55 PE RT 4 mm is a root-resistant bituminous waterproofing membrane specifically designed for use beneath green roofs, roof gardens and ballasted roofs. Incorporating an anti-root additive and reinforced with a heavy non-woven polyester fabric, it provides durable waterproofing performance while helping protect the roof structure from root ingress and exposure to soil, fertilisers and humid acids.
SikaShield® P55 PE RT 4 mm
Root-Resistant Bitumen Green Roof Membrane
SikaShield® P55 PE RT 4 mm is an APP modified bituminous waterproofing membrane developed for green roof systems and other roof areas where resistance to root penetration is required. The membrane incorporates a specialised anti-root additive within its modified bitumen compound, helping to protect the waterproofing system from root growth while maintaining long-term durability.
Manufactured using distilled bitumen modified with elastoplastomeric polymers, the membrane is designed to offer increased durability and improved resistance to both high and low temperatures. A heavy non-woven polyester reinforcement provides mechanical strength, elongation and puncture resistance, making it suitable for demanding green roof environments.
Key benefits:
- Designed specifically for green roofs and roof garden applications
- Anti-root additive helps protect against root penetration
- Resistant to humid acids and fertilisers
- Can be installed in direct contact with soil
- Modified bitumen technology for improved durability and temperature resistance
- Heavy non-woven polyester reinforcement for mechanical strength
- High resistance to puncturing and laceration
- Suitable for green roof and ballasted roof applications
- Torch-applied installation
Please note: refer to Sika specification for product names as they may vary depending on the build-up
