WATERPROOFING
WATERPROOFING
Durable protection. Rapid performance. Proven technology.
WestWood’s PMMA-based waterproofing systems deliver seamless, long-term protection for structures exposed to constant moisture and movement. From plaza decks and planters to tunnels, foundations, and below-grade assemblies, our liquid-applied membranes create a fully bonded, flexible barrier that resists water infiltration and withstands structural stresses over time. Each component is engineered for precision and compatibility, forming a complete system that integrates easily with overburden, insulation, or structural substrates.
Unlike sheet or roll-applied systems that rely on seams, adhesives, or extended cure times, WestWood’s cold-applied PMMA technology offers true monolithic protection with unmatched installation speed, rainproof in just 30 minutes and fully cured within hours. The result is a waterproofing solution that performs as strong as it looks: seamless, reliable, and ready when you are.
FEATURES & BENEFITS

Seamless & Monolithic
Fully bonded, joint-free membranes eliminate weak points and prevent water migration.

Rapid Curing
Rainproof in 30 minutes and ready for overburden or traffic within hours, minimizing downtime and delays.

Low Temperature Applications
Engineered to cure quickly even in cold or variable conditions, extending the installation season.

Versatile System Design
Suitable for vertical or horizontal applications, with multiple assembly options for exposed, buried, or inverted systems.

Integrated Details
Complex transitions, penetrations, and terminations are formed in-place for uniform, watertight results.

Integrated Details
Field and flashing membranes are installed as one system, creating fully bonded, continuous protection at penetrations, edges, and transitions.
WePly Hybrid Waterproofing Systems
For projects traditionally designed around hot rubberized asphalt, WestWood’s WePly hybrid systems offer a faster, cleaner, and more advanced alternative without sacrificing proven bituminous performance. Combining a durable SBS-modified bitumen ply, applied by torch or self-adhered methods, with WestWood’s cold-applied PMMA technology, the WePly system creates a fully bonded, flexible waterproofing assembly that installs efficiently, integrates seamlessly with PMMA details, and is ready for overburden within hours.
Where hot-applied systems rely on kettles, extended cure times, and labor-intensive detailing, WePly and PMMA deliver the same monolithic protection through a safer and more versatile process. The result is a composite waterproofing membrane that merges the resilience of SBS-modified bitumen with the precision, speed, and detailing versatility of PMMA ideal for both new construction and restoration projects.
Recent Projects
System Solutions from WestWood
CONTACT US
Are you interested in our PMMA resin products or have specific question about their applications? Whether you need technical advice, wish to place an order, or find out more about what we do here at WestWood—we’re here to help.
We look forward to supporting your individual project with high-quality PMMA solutions.
Fill out our form and we’ll get back to you shortly.