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Sentinel
The best insulated security door in the industry!
The Sentinel sectional door is without equal the most robust and best insulated sectional door in the industry. The Sentinel sectional door is equipped with 16 gauge steel skins or 20 gauge steel skins and is available with a 2” thick (R-18), 3” thick (R-24) and 4” thick (R-32) polyurethane foam core. The Sentinel sectional door has all the outstanding features of a superior industrial door: high density polyurethane foam core, airtight tongue-and-groove joint, true thermal break with an integral bubble seal (double bubble seal for 3” and 4” thick doors), triple-lip perimeter weather seal with extra heavy-duty aluminum retainer, robust U-rubber bottom seal (double bottom seal for 3” and 4” thick doors), 16 gauge galvanized steel end caps, etc. Due to its dual quality of superior robustness and high insulation value, the Sentinel sectional door is widely used as a security door or as a highly insulated Arctic door that can withstand the harshest weather or environmental conditions.
The Sentinel sectional door is recommended for the following applications:
- police station
- detention center
- military installation
- high security building
- government building
- Canadian Arctic building
- research laboratorie
- precious stones & minerals mine
- pharmaceutical plant
- high-value goods warehouse
Performance tests |
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Size capacity | Doors up to 24' wide by 16' high (7315mm wide by 4877mm high) |
Thickness and insulation value:
Manufacturing process |
![]() 2" (50mm) thick.R-18. 3" (75mm) thick. R-24. 4" (100mm) thick.R-32. The inner core consists of rigid polyurethane, foamed in place under high pressure between two metal skins. |
Joint and seal | ![]() |
Metal skins / Finish |
2 options available : ![]() 20ga. steel : ![]() 16ga. steel : |
Perimeter weather seal |
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Bottom weather seal |
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End caps | ![]() |
Glazing options | ![]() Type A (for the Mark II models only) : Type B : Type C : Type E : |
Hardware and electric operators |
Recommended models (for 10 000 cycles springs) :
Note : |