The 3350 FEMA Window consists of a thermally broken, extruded aluminum frame anchored into the shelter opening via a mechanically attached installation trim angle into lumber substrate. The units are asymmetrical and always installed with the polycarbonate pane and removable stop oriented towards the interior of the shelter envelope. Mulled units are allowed, as described in the following tables.
This listing is for wind pressure and impact resistance only. Fire resistance, when required by Section 603 of ICC 500-2020 or Section B6.2.3 of FEMA P-361 (2021), is outside the scope of this listing. Assemblies required to be fire-resistance-rated shall also bear the label of a separate fire listing to the applicable standard(s).
| Assembly Type |
Permitted Size |
Tornado Resistance
Design Pressure |
Impact Rating |
| Fixed Window |
Min Daylight Opening: 29.75” x 35.75”
Max Daylight Opening: 47.75” x 83.75”
Min Assembly Size: 36.25” x 42.25”
Max Assembly Size: 54.25” x 90.25” |
+/- 250 psf
(300 psf Test Pressure) |
15-lb 2x4 @ 100 mph |
| Configuration |
Frame: Thermally Broken, 3.5-inch-deep, Extruded Aluminum
Anchorage: 0.25 x 3.5-inch Tapcon fasteners into dimensional lumber. Installed in accordance with manufacturer’s instructions and the following minimum anchorage locations: 3 inches from corner and maximum 4 inches on-center
Installation Orientation: Removable stop oriented towards protected envelope (Interior side) |
| Assembly Type |
Permitted Size |
Tornado Resistance
Design Pressure |
Impact Rating |
| Mulled Assembly |
Min Individual Lite Daylight Opening: 29.75” x 35.75”
Max Individual Lite Daylight Opening: 47.75” x 83.75”
Max Assembly Size: 86.5” x 102”
Max Mullion Length: 102” |
+/- 250 psf
(300 psf Test Pressure) |
15-lb 2x4 @ 100 mph |
| Configuration |
Frame: Thermally Broken, 3.5-inch-deep, Extruded Aluminum
Anchorage: 0.25 x 3.5-inch Tapcon fasteners into dimensional lumber. Installed in accordance with manufacturer’s instructions and the following minimum anchorage locations: 3 inches from corner and maximum 4 inches on-center
Installation Orientation: Removable stop oriented towards protected envelope (Interior side) |
