Insulated Rolling Service Door

Wayne Dalton's ThermoTite® 800C Rolling Service Door is designed to meed the tough requirements of virtually any commercial or industrial application, with the added advantage of energy efficiency.  The ThermoTite® 800C offers flexibility in substrate materials with choices of galvanized or primed steel, stainless steel or aluminum.  This door is designed to withstand wind loads of up to +/- 20 psf standard, with optional wind load ratings of up to +/- 55 psf.

These insulated rolling service doors are composed of flat slats that provide a natural watershed, helping to reduce corrosion.  Foamed-in-place polyurethane insulation with an R-value* of 7.7 fills the slat to enhance a building's thermal efficiency.  The slats are designed with free-acting interlocking joints that permit easy articulation when the door coils.

Model 800C features a strong double-angle bottom bar designed for easy installation and does not require fasteners in the guide openings, so the bottom bar does not interfere with door operation.

insulated rolling service doors

The counterbalance assembly consists of a spring barrel which serves as load-carrying beam.  It encases the counterbalance mechanism and provides the axis around which the curtain coils. 

*Wayne Dalton uses a calculated door section R-value for our insulated doors.

Door Options

Options & Accessories:

Vision slat

Safety edges

Drop stop device 

Exhaust ports

Sloping bottom bars

Cable reels


Stainless steel or aluminum finish

18- and 20- gauge front slats

IECC Air Infiltration Option:

Guide cover and cap

Dual brush guide seal

Lintel seal

Bottom astragal

Operation Options:

Chain hoist


Through wall

Wind Load Options:

Articulating Windlocks for operational wind load

Highest Quality Standards

Max Width: 42'*

Max Height: 30'*

Max Steel Gauge = 18

Steel, aluminum or stainless steel construction

Wind load +/- 20 psf standard; options up to +/- 55 psf

R-value** = 7.7; U-value** = 0.13

*Larger sizes may be available, please contact us for more details.

**Wayne Dalton uses a calculated door section R-value and U-value for our insulated doors.

Slat Profile:

No. 34 

Common Applications:

Warehouse and Industrial spaces

Manufacturing facilities

Food and Beverage facilities






RAL Powder Coat:

Wayne Dalton also offers approximately 200 powder coat options to complement the exterior colors of a building.

Online color swatches are only digital reproductions of actual standards and will vary in appearance due to differences in monitor and video card output.  These digital representations should not be used to finalize color selection(s).  Please reach out to us to discuss actual color samples to match your preferences.

Contact Information

2 Lukens Dr.

New Castle, DE 19720

Suite 600

Call Us: 1-888-927-3835


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