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PRECON®

PRECON is a pre-applied waterproofing membrane designed for blindside and underslab applications where access to the positive side is limited. It combines a durable elastomeric membrane with the exclusive PLASMATIC CORE, a seven-layer matrix that delivers one of the lowest water vapor transmission rates available. When concrete is poured against it and cured, PRECON forms a strong mechanical bond to the structure, creating a seamless waterproof and vaporproof barrier.

Precon Hero

Performance dashboard

Features & functionality

  • Provides a waterproof seal between the membrane and poured concrete wall
  • Helps prevent moisture migration into the structure
  • Reduces methane and radon gas intrusion.


Visit W.R. MEADOWS for more product information:

PRECON®

Environment & materials

Improved by:

  • Made in the United States


Certifications, rating systems & disclosures:

  • USGBC member
  • CAGBC member
  • Build America, Buy America Act compliant
  • Product ingredients do not contain chemicals in the Living Building Challenge Red List

MasterFormat® 07 13 00

PRECON Technical data sheet, Guide spec

For spec help, contact us or call 800-342-5976.

See LCA, interpretation & rating systems

  • VERIFICATION LCA
  • 3rd-party reviewed
  • Transparency Report (EPD)
  • 3rd-party reviewed

Validity: 06/22/26 – 06/22/30
SM-WRM – 06222026 – 002


This Environmental Product Declaration (EPD) was externally verified by Lindita Bushi, PhD, Senior Research Associate at Athena, in accordance with Sustainable Minds (2026) Product Category Rules (PCR) for Part B: Product group definition | Water-Resistive and Air Barriers | Part B #26-002

Athena Sustainable Materials Institute
600 Grings Hill Road
Sinking Spring, PA 19608
athenasmi.org
(610) 985-0933

SUMMARY

Reference PCR
SM Part B: PCR for Water-Resistive and Air Barriers

Regions; system boundaries
North America; Cradle-to-gate

Declared unit: 1 m2

LCIA methodology: TRACI 2.2

LCA software; LCI database
SimaPro Developer 10.2.0.2; ecoinvent v3.11, US-EI 2.2

Public LCA:
LCA of W. R. MEADOWS Waterproofing Membrane

In accordance with ISO 14044 and the reference PCR, this life cycle assessment was conducted by Sustainable Minds and reviewed by Lindita Bushi, PhD, Senior Research Associate, at Athena.

©2026 | The SM Transparency Report™ Program is operated by Sustainable Minds® | Privacy policy

W.R. MEADOWS, Inc.
300 Industrial Drive
P.O. Box 338
Hampshire, IL 60140-0338
wrmeadows.com
(800) 342-5976