Canada
Français
Español
InternationalRMAX THERMASHEATH®
| Wall Component | Materials |
| Base Wall | • Steel studs (3 5/8″ 20GA min, 24″ o.c. max) with Type X interior gypsum wall board (1/2″ min)
• Concrete or concrete masonry wall • Fire Retardant Treated Wood (FRTW) studs (nominal 2×4 min, 24″ o.c. max) with 5/8″ Type X interior gypsum wallboard |
| Floor Line Fire- Stopping | • Mineral fiber insulation (4 pcf)
• FRTW fire blocking |
| Cavity Insulation | • None
• Mineral fiber or fiberglass (faced or unfaced) • Any non-combustible insulation • Various SPF (requires 5/8″ exterior gypsum) |
| Exterior sheathing | • None (only with concrete or concrete masonry walls
• Exterior gypsum sheathing (1/2″ min) • FRTW structural panels (1/2″ min) • Soprema® SOPRASEAL® Xpress G2 |
| Water Resistive Barrier Over Sheathing | • None
• W. R. MEADOWS AIR-SHIELD LMP (Gray) • W. R. MEADOWS AIR-SHIELD LMP (Black) • W. R. MEADOWS AIR-SHIELD TMP • W. R. MEADOWS AIR-SHIELD LSR |
| Exterior insulation | • Thermasheath® (4.5″ max) |
| WRB Over Insulation | • W. R. MEADOWS AIR-SHIELD LMP (Gray)
• W. R. MEADOWS AIR-SHIELD LMP (Black) • W. R. MEADOWS AIR-SHIELD TMP • W. R. MEADOWS AIR-SHIELD LSR |
| Exterior Cladding | • Brick, standard 4″ clay brick with max 2″ air gap
• Stucco, cement plaster (3/4″ min) and lath with optional secondary WRB (not asphaltic or self-adhered butyl) • Limestone (2″ min) • Natural stone veneer (2″ min) • Cast artificial stone veneer (1 1/2″ min) • Terracotta cladding (1 1/4″ min) • Any MCM (aluminum, steel, copper, zinc) passing NFPA 285 with max 2 1/2″ air gap • Metal panel, uninsulated (aluminum, steel, copper, zinc) • Fiber-cement siding, uninsulated • Autoclaved-aerated-concrete (AAC) panels passing NFPA 285 • Stone/aluminum honeycomb composite building panels passing NFPA 285 – Stone Panels, Inc StoneLite® panel system • Thin set brick – Elite Series • Natural stone veneer, adhered (1 1/4″ min) • FunderMax M.Look with max 1 1/2″ air gap |
| Window Header | • Steel flashing (20GA min) |
| Flashing | • Any asphalt, acrylic or butyl based (12″ max)
• Any liquid applied (12″ max) |
Note: Fire Retardant Treated Wood (FRTW), where allowed, must comply with IBC Section 2303.2. Information obtained from Rmax Thermasheath®
Revised: May 11, 2020
Full NFPA testing documents are available. Please contact us to request these documents.