A Membrane Engineered for Complex Overburden Environments
When a waterproofing system must perform beneath vegetated roofs, concrete, pavers, or even road-grade asphalt, the margin for error is essentially zero. Teranap® is a torch-applied, SBS-modified bitumen waterproofing membrane reinforced with non-woven polyester — purpose-built to deliver lasting protection in the most demanding soil- and moisture-rich environments. Whether you're specifying a plaza deck, a green roof assembly, or another buried application, Teranap® gives you a single, proven solution across a wide range of overburden types.
Broad Overburden Compatibility: Teranap® works with vegetated roofs, pedestal pavers, poured-in-place concrete, stormwater management systems, mortar-set pavers, and road-grade asphalt
SBS-Modified Bitumen Durability: The SBS-modified bitumen composition delivers flexibility and resilience, maintaining performance under the weight and movement associated with overburden assemblies.
Composite Fiberglass Scrim/Polyester Mat Reinforcement: Providing both tear and puncture resistance, fire resistance, and dimensional stability.
From Roofing Origins to Waterproofing Excellence
Teranap's lineage matters. SBS-modified bitumen membranes were initially developed for roofing — an environment that demands extreme weather resistance, long-term adhesion, and material durability. That same engineering rigor translates directly into waterproofing performance, giving specifiers and building owners confidence that Teranap® isn't an afterthought adaptation but a proven technology applied with precision to waterproofing challenges. Siplast supports every Teranap® installation with detailed technical resources, including an installer guide, application documentation, and video references, so contractors and project teams have what they need to execute correctly.
Proven Technology, Purposeful Application: A membrane born from roofing demands brings inherent durability advantages to waterproofing — particularly in environments where moisture exposure is constant and overburden adds complexity.
Comprehensive Technical Support: Siplast provides a dedicated installer guide, system brochure, and application resources to ensure proper specification and installation across all compatible assemblies.
Stormwater Management Integration: Teranap's compatibility with stormwater management systems positions it as a forward-thinking choice for projects prioritizing sustainable site performance.
Confidence in Inaccessible Installations: Because waterproofing membranes are typically buried under overburden and difficult to access after installation, specifying a membrane with Teranap's verified performance characteristics is a sound risk management decision.
Frequently Asked Questions
Q: What types of overburden assemblies is Teranap® compatible with?
A: Teranap® is compatible with a wide range of overburden assemblies, including vegetated roofs, pedestal pavers, poured-in-place concrete, stormwater management systems, mortar-set pavers, and road-grade asphalt. That breadth of compatibility makes it a practical choice for complex, multi-use projects.
Q: What makes SBS-modified bitumen a strong choice for waterproofing applications?
A: SBS-modified bitumen delivers flexibility, durability, and resilience — characteristics that were refined through demanding roofing applications and translate well to waterproofing. These membranes are designed to handle the moisture-rich, high-load environments typical of plaza decks and below-grade installations.
Q: Can Teranap® be used for below-grade waterproofing, or is it limited to plaza and roof deck applications?
A: Teranap® is suited for below-grade waterproofing applications as well, in addition to pedestrian traffic and overburden assemblies. Its durability in soil- and moisture-rich environments makes it well-suited wherever water intrusion prevention is the priority.
Q: What role does a composite reinforcement mat play in Teranap's performance?
A: The non-woven polyester reinforcement provides dimensional stability and puncture resistance. The fiberglass reinforcement mat provides fire resistance and dimensional stability. These properties are especially important in applications where the membrane will be covered by overburden and won't be easily accessible for inspection or repair after installation.
Q: What installation and specification resources does Siplast offer for Teranap®?
A: Siplast supports Teranap® with a comprehensive installer guide, a system brochure, application documentation, and a plaza deck waterproofing video. These resources are designed to help specifiers, contractors, and project teams install Teranap® correctly and confidently. You can access the Teranap® Waterproofing Systems Installer Guide, the Teranap® Membrane Brochure, and the Plaza Deck Waterproofing Video directly through Siplast.
Q: How does Teranap® support projects with stormwater management goals?
A: Teranap® is a multi layer, homogenous waterproofing system ideal for true waterproofing applications, making it a strong fit for projects when water will be stored above the membrane.. Its integration into these assemblies allows project teams to address both waterproofing performance and environmental objectives within a single system.
Q: Where can I learn more about Siplast's vegetated roof system offerings?
A: Siplast offers dedicated resources on vegetated roof system technology. You can explore those offerings at siplast.com/vegetated-roof-system-technology and review Teranap® torch-applied system documentation at siplast.com/systems/teranap-torch-applied.
When a waterproofing membrane goes under overburden, it needs to be right the first time — there's rarely a straightforward path back to it. Teranap® delivers the root resistance, material durability, and overburden versatility that demanding projects require, backed by Siplast's deep technical expertise and a full library of support resources. If you're specifying a plaza deck, a green roof, a below-grade assembly, or any project where long-term waterproofing performance is non-negotiable, Teranap® is a conversation worth having. Reach out to Siplast and let's talk through what the right system looks like for your project.
