Overview
Polyglass VertiWrap® NPL LT is a single-component, vapor-permeable fluid-applied air barrier membrane designed for commercial wall assemblies and low-temperature building envelope applications. Engineered to maintain dependable application performance in cooler weather conditions, NPL LT forms a seamless monolithic membrane that helps reduce uncontrolled air infiltration while allowing vapor permeability.
This fluid-applied air barrier is ideal for commercial projects requiring reliable cold-weather membrane performance and flexible application methods.
VertiWrap® NPL LT is formulated to support improved application and curing performance during colder jobsite conditions where standard membranes may experience slower setup times.
Key Features
- Low-temperature application formulation
- 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
- Designed for commercial building envelope systems
Applications
- Commercial wall assemblies
- Exterior building envelope systems
- Cold-weather installations
- New construction and retrofit projects
- Sheathing and substrate protection
Application Methods
- Airless spray application
- Roller application
- Brush application for detailing and transitions
Recommended Equipment
VertiWrap® NPL LT 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 membrane applications and large commercial wall assemblies.
Why Contractors Use VertiWrap NPL LT
Contractors choose VertiWrap® NPL LT for its dependable cold-weather application performance, seamless membrane protection, and vapor permeability. Its low-temperature formulation helps maintain productivity during seasonal installation conditions.
Material Type
Single-Component Fluid-Applied Air Barrier
Package Size
5 Gallon Pail
Manufacturer
Polyglass USA
Manufacturer SKU
NPLLT-5
FAQs
What is VertiWrap NPL LT used for?
VertiWrap NPL LT is used as a vapor-permeable fluid-applied air barrier membrane for commercial wall assemblies and building envelope systems.
What does LT stand for?
LT stands for low temperature, meaning this formulation is designed for improved application and curing performance during colder weather conditions.
Is VertiWrap NPL LT vapor permeable?
Yes. It is designed to allow vapor transmission while reducing uncontrolled air infiltration through the wall assembly.
Can VertiWrap NPL LT 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 LT?
Commonly used sprayers include the Graco GH 833, Mark V, Mark X, and Ultra Max II series depending on production requirements and jobsite conditions.
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.
