Technical Data Bulletin

Mortairvent Masonry Rainscreen 04 05 23.19 - 4
Specifier Notes: Specify the masonry rainscreen thickness.
5. Total Thickness: [0.25 inch (6 mm)] [0.4 inch (10 mm)] [0.8 inch (20 mm)].
6. Recycled Content: 40 percent.
B. Test Results:
Specifier Notes: Include test results for the specified masonry rainscreen total thickness.
1. Masonry Rainscreen, 0.25-inch (6-mm) Total Thickness:
a. Thickness, ASTM D 6525: 0.268 inch (6.8 mm).
b. Density, ASTM D 792, Method A: 0.901 g/cm
3
.
c. Porosity, ECTC TASC 00197: 93.8 percent.
d. Mass per Unit Area, ASTM D 5261 and D 6566:
1) Composite: 11.25 oz per sq yd (382 g/m
2
).
2) Core: 9.20 oz per sq yd (312 g/m
2
).
e. Hydraulic Transmissivity, Machine Direction, ASTM D 4716:
1) Flow Rate: 3.70 GPM/ft width.
2) Transmissivity: 7.65E-03 m
2
/s.
f. Air Transmissivity, ASTM D 4716, Modified:
1) Estimated Flow Rate: 15.8 cu ft/min/ft width.
2) Incremental Transmissivity: 6.97E-04 m
2
/s.
g. Fire Rating, ASTM E 84: Class A.
2. Masonry Rainscreen, 0.4-inch (10-mm) Total Thickness:
a. Thickness, ASTM D 6525: 0.407 inch (10.3 mm).
b. Density, ASTM D 792, Method A: 0.903 g/cm
3
.
c. Porosity, ECTC TASC 00197: 95.3 percent.
d. Mass per Unit Area, ASTM D 5261 and D 6566:
1) Composite: 15.10 oz per sq yd (512 g/m
2
).
2) Core: 13.05 oz per sq yd (442 g/m
2
).
e. Hydraulic Transmissivity, Machine Direction, ASTM D 4716:
1) Flow Rate: 7.01 GPM/ft width.
2) Transmissivity: 1.45E-02 m
2
/s.
f. Air Transmissivity, ASTM D 4716, Modified:
1) Estimated Flow Rate: 54.5 cu ft/min/ft width.
2) Incremental Transmissivity: 2.41E-03 m
2
/s.
g. Fire Rating, ASTM E 84: Class A.
3. Masonry Rainscreen, 0.80-inch (20-mm) Total Thickness:
a. Thickness, ASTM D 6525: 0.768 inch (19.5 mm).
b. Density, ASTM D 792, Method A: 0.910 g/cm
3
.
c. Porosity, ECTC TASC 00197: 97.7 percent.
d. Mass per Unit Area, ASTM D 5261 and D 6566: 12.15 oz per sq yd (412 g/m
2
).
e. Hydraulic Transmissivity, Machine Direction, ASTM D 4716:
1) Flow Rate: 12.00 GPM/ft width.
2) Transmissivity: 2.48E-02 m
2
/s.
f. Air Transmissivity, ASTM D 4716, Modified:
1) Estimated Flow Rate: 89.5 cu ft/min/ft width.
2) Incremental Transmissivity: 3.96E-03 m
2
/s.