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Innovative Construction Products for Superior Weatherization
At International Building Components, we pride ourselves on leading the construction industry with innovative weatherization solutions. Since our establishment, we have dedicated ourselves to developing advanced products that address critical gaps in building protection. Our flagship WaterBlock line, including Window & Door Flashing Membranes and Nail on Flashing, has revolutionized waterproofing practices across the western United States. We combine cutting-edge design with proven performance to safeguard structures from environmental elements. Our product portfolio extends to electrical roofing underlayment, building wraps, and sill protection systems that meet diverse construction needs. Committed to quality, we ensure every WaterBlock solution exceeds industry standards for durability and effectiveness.

Our team's expertise in material science and construction challenges drives continuous product improvement. We collaborate extensively with distributors and contractors to deliver weatherproofing solutions that combine ease of installation with long-term reliability. As trusted suppliers, we maintain rigorous quality control throughout our manufacturing processes. Our corporate headquarters in Monroe, Washington serves as the hub for our nationwide distribution network. Through years of research and field testing, we've created products that outperform conventional alternatives in moisture management. Our mission remains focused on advancing construction material technology while maintaining competitive pricing and exceptional customer support.
Services
Electrical Roofing Underlayment Building Wraps Sill Protection Window Flashing Membranes Door Flashing Systems
Details
  • Year established: 2025
Highlights and features
  • We offer innovative waterproofing solutions developed through advanced design techniques
  • Our products have become the industry standard in the western United States
  • We provide a comprehensive range of weatherization products for construction projects of all sizes
  • Our team identified a critical market gap and created effective waterproofing solutions
  • We are dedicated to replacing inferior products with our proven, high-performance materials
Services
Electrical Roofing Underlayment
WaterBlock's electrical roofing underlayment combines moisture protection with integrated wire channels for modern roof systems. This innovative product manages water infiltration while accommodating electrical installations for roof-mounted equipment. Contractors benefit from reduced material layers and simplified code compliance during roof construction projects.
Building Wraps
Our high-performance building wraps create continuous weather-resistant barriers for exterior walls and structures. These permeable membranes allow vapor escape while blocking liquid water intrusion, maintaining optimal wall cavity conditions. The durable material withstands construction timelines without compromising protective capabilities.
Sill Protection
WaterBlock's sill protection system prevents water accumulation at window and door openings through its engineered slope design. The self-adhering membrane forms watertight seals while directing moisture away from critical structural intersections. This solution meets modern construction's demanding weatherproofing standards.
Window Flashing Membranes
These pre-formed flashing membranes protect window openings with flexible, yet durable sealing around all four sides. The material accommodates dimensional changes while maintaining waterproof integrity. Contractors achieve consistent results compared to traditional metal flashing methods.
Door Flashing Systems
Our comprehensive door flashing solutions prevent water intrusion at entry points while facilitating proper drainage. The system integrates with other WaterBlock products for complete protection, addressing common failure points in door installations through innovative design features.
Questions
What types of products does International Building Components offer?
We provide waterproofing solutions including WaterBlock Window & Door Flashing Membranes, electrical roofing underlayment, building wraps, and sill protection systems designed for modern construction needs.
Where are your products available?
Our weatherization products are distributed throughout the western United States with expanding availability across North America through our certified distributor network.
How do I find a local distributor for your products?
Use our online distributor locator tool to find authorized WaterBlock product suppliers in your area or contact our Monroe, WA headquarters for assistance.
What makes your flashing products superior to competitors'?
Our WaterBlock Flashing Membranes use proprietary technology to deliver better adhesion, longer durability, and more comprehensive protection than conventional weatherproofing materials.
Do you provide installation instructions for your products?
Yes, we offer detailed installation guides and technical specifications for all WaterBlock products through our website's resources section.
What technical support options exist for your construction materials?
Our technical team provides comprehensive support including product selection guidance, warranty information, and performance specifications for all weatherization solutions.