W.R. Meadows AIR-SHIELD™ TMP

Manufacturer: W. R. Meadows
Product Type: Liquid Permeable

Short Description

AIR-SHIELD™ TMP is a water-based, vapor-permeable air and liquid moisture barrier designed to enhance building envelope performance by preventing air leakage and moisture intrusion. This seamless, elastomeric membrane adheres to concrete, CMU, gypsum board, plywood, and metal, forming a flexible, crack-bridging barrier that resists UV exposure for up to six months. Easy to apply by spray or roller, VOC-compliant, and fast-drying, AIR-SHIELD™ TMP is ideal for commercial and residential air barrier applications.

Quantity Needed

AIR-SHIELD™ TMP is a high-performance, liquid-applied vapor-permeable air and moisture barrier that provides superior protection against air infiltration and liquid water intrusion while allowing moisture vapor transmission. This single-component, elastomeric membrane is designed to control air movement and enhance energy efficiency in both new construction and retrofit applications.

Engineered for commercial and residential wall assemblies, AIR-SHIELD™ TMP is highly flexible, durable, and resistant to cracking, making it ideal for CMU, cast-in-place concrete, exterior sheathing, and parapet walls. It meets ASTM air leakage and permeability standards and is available in green (standard) and black for rainscreen applications.

Key Benefits of AIR-SHIELD™ TMP:

  • Prevents air leakage and liquid water intrusion—enhances building energy efficiency
  • Vapor-permeable—allows moisture vapor to escape, preventing condensation buildup
  • Seamless and elastomeric—bridges cracks and irregular surfaces
  • UV-resistant—green membrane exposed for up to six months, black membrane permanently
  • Single-component, water-based formulation—low VOCs, environmentally friendly
  • Fast and easy application—sprayable for cost-effective installation
  • Self-sealing around fasteners—ensures continuous air and moisture protection
  • Resists mold and fungal growth—improves indoor air quality
  • Wide temperature application range—remains flexible down to 20°F (-6.7°C)
  • Exceeds ABAA and ASTM air leakage performance requirements

Common Applications:

  • Air and moisture barrier for commercial and residential exterior walls
  • Vapor-permeable waterproofing for cavity walls, parapets, and firewalls
  • Moisture protection for precast and cast-in-place concrete walls
  • Sealing sheathing joints and transitions in exterior wall assemblies
  • Enhancing energy efficiency in new construction and retrofit applications

💡 Packaging: Available in 5-gallon pails and 55-gallon drums.
💡 Coverage: 100 sq. ft. per gallon on plywood/gypsum, 60 sq. ft. per gallon on CMU.