PROSOCO
Fluid-applied air and water barriers for durable, airtight residential envelopes.
What they're known for
A Kansas manufacturer whose R-Guard systems are used to control air, bulk water, and difficult transitions in high-performance wall assemblies.
PROSOCO manufactures construction chemicals and enclosure systems, including the R-Guard air- and water-control products used on high-performance residential projects. FastFlash and Cat 5 are designed for transitions, penetrations and continuous exterior control layers where airtightness and water management have to survive real construction sequencing. The company belongs in Compound as an envelope-system manufacturer with strong project documentation rather than as a generic chemical brand.
Notable projects
- Yamhill County, OR
Karuna House
Passive House / LEED Platinum project documented using PROSOCO R-Guard enclosure products.
Notable products
We haven't catalogued their full line in the directory yet. These are the entries worth knowing.
- Catalog entry
R-Guard Cat 5
Vapor-permeable fluid-applied air and water barrier
- Catalog entry
R-Guard FastFlash
Liquid flashing and transition material
Is this your company?
Claim this profile to verify the facts and tell the story your way. Free.
More firms
Airthings
Radon and air-quality monitoring, made consumer-simple.
Alama Studio
Turin design studio making kettlebells you'd put on a plinth.
Almost Heaven Saunas
Traditional barrel saunas from one of the most established US makers.
Alpen High Performance Products
High-performance fiberglass windows engineered for Passive House and net-zero homes.
Sources
Facts verified September 2026. Compound is an independent editorial directory and is not affiliated with this company unless stated.