EnviroDri Membrane
Vapor-Permeable Barrier for Building Envelopes
EnviroDri™ Membrane is a high-performance, fluid-applied weather barrier designed to protect residential and multi-family structures from water and air intrusion. This polymer-modified asphalt emulsion provides seamless coverage and is permanently adhered to the sheathing, offering exceptional durability even under high winds and driving rain. With 4-month UV resistance and temperature flexibility from 0 °F to 130 °F, it’s ideal for seasonal or extended construction timelines. EnviroDri Membrane supports healthy building envelopes by allowing vapor to pass through while blocking bulk water intrusion.
Key Benefits of EnviroDri Membrane
- Seamless Barrier: Creates a continuous membrane with roller or spray application.
- UV-Resistant: Resists ultraviolet degradation for up to 4 months.
- Tenacious Adhesion: Adheres permanently and withstands high winds and rain.
- Blocks Water: Seals out moisture at vulnerable joints and transitions.
- Cold-Weather Application: Applies effectively in temperatures down to 0 °F.
Common Applications
- Plywood and OSB sheathing
- Concrete and fiberboard
- Glass-mat gypsum and block masonry
- Nudura® ICF board joints
Packaging & Installation
EnviroDri Membrane is applied via spray or roller, requiring no mechanical fasteners. It cures to form a durable, monolithic membrane with excellent elongation and weather resistance. Suitable for residential walls, multi-family dwellings, and commercial projects seeking long-term envelope performance.
Product Properties
| Property | Value |
|---|---|
| Application Temperature | 0 to 130 °F (–18 to 55 °C) |
| ASTM E331: Water Penetration | Passed |
| Service Temperature | Intermittent exposure up to 158 °F (70 °C) |
| Thickness | 12–15 wet mil, 10 dry mil |
| Type/Technology | Polymer-modified asphaltic emulsion |
See also the EnviroDri Joint Fabric for use at joints and rough openings. Visit Tremco Sealants for more solutions.
