Overview
Polyglass VertiWrap® NPL is a single-component, vapor-permeable fluid-applied air barrier membrane engineered for commercial wall assemblies and building envelope protection. Designed to create a seamless monolithic membrane, VertiWrap® NPL helps reduce uncontrolled air infiltration while allowing vapor transmission for proper wall drying performance.
This fluid-applied air barrier is designed for commercial construction projects requiring reliable membrane continuity, versatile application methods, and long-term building envelope performance.
VertiWrap® NPL provides contractors with a versatile fluid-applied membrane solution compatible with common commercial wall assembly substrates and professional airless spray equipment.
Key Features
- Vapor-permeable air barrier membrane
- Single-component ready-to-use material
- Seamless monolithic membrane protection
- Spray, roller, or brush compatible
- Helps reduce uncontrolled air infiltration
- Supports long-term building envelope performance
- Designed for commercial construction applications
Applications
- Commercial wall assemblies
- Exterior building envelope systems
- New construction projects
- Retrofit and renovation applications
- Sheathing and substrate protection
Application Methods
- Airless spray application
- Roller application
- Brush application for detailing and transitions
Recommended Equipment
VertiWrap® NPL can be applied using professional single-component airless sprayers commonly used for fluid-applied air barriers and coatings.
- Graco GH 833
- Graco Mark V
- Graco Mark X
- Graco Ultra Max II series
Commercial contractors commonly use higher-output airless sprayers for production-scale fluid-applied membrane applications and large wall assemblies.
Why Contractors Use VertiWrap NPL
Contractors choose VertiWrap® NPL for its seamless membrane performance, vapor permeability, and flexible application methods. Its fluid-applied design helps simplify detailing while supporting efficient installation on commercial projects.
Material Type
Single-Component Fluid-Applied Air Barrier
Package Size
5 Gallon Pail
Manufacturer
Polyglass USA
Manufacturer SKU
NPL-5
FAQs
What is VertiWrap NPL used for?
VertiWrap NPL is used as a vapor-permeable fluid-applied air barrier membrane for commercial wall assemblies and building envelope systems.
Is VertiWrap NPL vapor permeable?
Yes. It is designed to allow vapor transmission while reducing uncontrolled air infiltration through the wall assembly.
Can VertiWrap NPL be spray applied?
Yes. It is commonly applied using professional airless spray equipment but can also be rolled or brushed depending on project requirements.
What sprayers are commonly used with VertiWrap NPL?
Commonly used sprayers include the Graco GH 833, Mark V, Mark X, and Ultra Max II series depending on production requirements and jobsite conditions.
Is VertiWrap NPL single component?
Yes. VertiWrap NPL is a ready-to-use single-component fluid-applied air barrier membrane.
Do you offer equipment support and training?
Yes. Spray Foam Systems offers equipment guidance, application support, and bilingual customer service for contractors working with fluid-applied air barrier systems.




