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International| Wall Component | Options |
| Base Wall
Use 1, 2 or 3 |
1 – Cast Concrete Walls
2 – CMU Cast Concrete Walls 3 – 25 GA (min) 3-5/8″ (min) steel studs spaced 24″ oc (max) a. Any 5/8″ type X gypsum wallboard interior b. Any 1/2″ Exterior gypsum sheathing c. Lateral bracing every 4 ft. vertically |
| Fire Stopping at Floor Lines | Any approved 4.0 pcf density mineral fiber safing insulation in each stud cavity at floor line. Safing thickness must match stud cavity depth. Use mineral fiber insulation manufacturer instructions for installation |
| Cavity Insulation
Use 1, 2 or 3 |
1 – None
2 – Any Class A, B, or C Fiberglass batt insulation (faced or unfaced) 3 – Any non-combustible insulation |
| Exterior sheathing | 1/2″ or thicker exterior grade gypsum sheathing |
| Water Resistive Barrier or Air Barrier over Base Wall Surface
Use 1 or 2 |
1 – None
2 – 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
Use 1, 2, or 3 |
1 – None
2 – ThermalStar CVT 15 (15 psi product, 1.35 pcf) up to 7.2 inches thick 3 – ThermalStar CVT 25 (25 psi product, 1.80 pcf) up to 5.4 inches thick 4 – ThermalStar LCi 15 (15 psi product, 1.35 pcf) up to 7.2 inches thick 5 – ThermalStar LCi 25 (25 psi product, 1.80 pcf) up to 5.4 inches thick 6 – ThermalStar CHROME 15 (15 psi product, 1.35 pcf) up to 7.2 inches thick 7 – ThermalStar CHROME 25 (25 psi product, 1.80 pcf) up to 5.4 inches thick |
| WRB Over Exterior Insulation | None |
| Exterior Cladding – Use 1, 2, 3, 4, 5, 6, 7 or 8 | 1 – Brick – nominal 4″ clay brick or vereer with maximum 2″ air gap cavity behind the cladding. Brick with ties/anchors spaced 24″ oc (max)
2 – Concrete – minimum 2″ thick with a maximum 2″ air gap cavity behind the cladding 3 – Concrete Masonry Units – minimum 4″ thick with a maximum 2″ air gap cavity behind the cladding 4 – Limestone – minimum 2″ thick with non-open joints installation technique such as shiplap 5 – Natural Stone Veneer – minimum 2″ thick with non-open joints installation technique such as shiplap 6 – Precast Artificial Stone – minimum 1-1/2″ thick complying with ICC-ES AC51 with non-open joint installation technique 7 – Terra Cotta Cladding – minimum 1-1/4″ thick (solid) with non-open joint installation technique such as shiplap 8 – Stucco – minimum 3/4″ thick exterior cement plaster and lath |
| Window Header Use either 1 or 2 – See Figure 1 for Window Header Detail | 1 – Flashing composed of 25 GA (min) sheet metal (steel) with 1″ thick, 4 pcf mineral wool over the interior of the sheet metal
2 – Any header design deemed more robust than item 1 per analysis |
Information obtained from the UL Evaluation Report UL ER16529-01
Issued: May 9, 2014
Revised: August 24, 2014
Full NFPA testing documents are available. Please contact us to request these documents.