FLUID-APPLIED AIR, VAPOR, AND WATER-RESISTIVE BARRIER FOR LOW-TEMPERATURE INSTALLATIONS
Carlisle Coatings & Waterproofing Barritech™ NP-LT is a single-component, fluid-applied air, vapor, and water-resistive barrier membrane formulated with a fire-retardant synthetic polymer. Engineered for sub-freezing installation, it enables work to continue during winter while maintaining flexibility, adhesion, and performance across a wide range of substrates, including concrete, CMU, exterior gypsum sheathing, plywood, and OSB.
Applied by spray or roller at 40 mils dry film thickness, Barritech™ NP-LT cures to form a continuous, rubber-like, monolithic barrier. Its elastomeric properties bridge cracks, seal around penetrations, and create a fully adhered air, vapor, and water-resistive system suitable for commercial wall assemblies.
FEATURES
-
Suitable for sub-freezing installation; can also be applied in warm weather
-
Fire-resistant composition allows use in NFPA 285 wall assemblies
-
Monolithic, seamless coverage bridges cracks and seals penetrations
-
Flexible, elastomeric membrane adapts to substrate movement
-
180-day UV resistance for flexible project scheduling
-
High water resistance for use in high-moisture exposure areas
-
Low-VOC, low-odor formulation for safer, more comfortable installation
-
Distinctive blue color (light when wet, dark when cured) for easy inspection
-
Water-based formula allows simple cleanup of tools and equipment
-
Non-asphalt composition compatible with many window and joint sealants
-
Warranted system from Carlisle Coatings & Waterproofing
SIZES
Available packaging:
-
5-gallon pails
-
50-gallon drums
LIMITATIONS
-
Do not apply below 25°F or if temperatures will drop below 25°F during drying
-
Do not apply in rain, wet weather, or over damp substrates
-
Not suitable for areas exceeding 180°F
-
Designed for positive-side waterproofing only (not negative-side applications)
-
Cover product with exterior cladding within 180 days of installation
STORAGE
Store Barritech™ NP-LT and accessory products in a protected area between 50°F and 80°F. Protect from freezing during delivery, storage, and handling. Do not use product that has been exposed to freezing temperatures. Shelf life is nine months from the date of manufacture when stored under recommended conditions.
RESOURCES
