Insulated Rolling Doors Improve Thermal Efficiency

rolling service door

Key Product Features:

  • Polyurethane insulation, R-Value = 7.7
  • Standard Max Width 42’*
  • Standard Max Height 30’
  • Max Steel Gauge = 18
  • Steel, aluminum or stainless steel construction
  • Wind load 20 PSF standard; options up to 55 PSF
*Larger sizes may be available. Consult factory for more information. 800-764-1457

Options & Accessories:

  • Vision Slat
  • Motor Operator
  • Cable Reels
  • Thru-Wall Operation
  • Bottom Bar Sensing Edges
  • Anti-Drop Devices (including Wayne Dalton's Proprietary DSD - Drop Stop Device, and Brake Devices)
  • Exhaust Ports
  • Sloping Bottom Bars
  • Mullions
  • Optional powder coat finish
  • Pass Door
IECC Listing

IECC Air Infiltration Option includes:

  • Guide cover and cap
  • Dual brush guide seal
  • Lintel seal
  • Bottom astragal

  • *Available Q1 2016

Slat Profiles

See our Model 800C Slat Profiles document for more profiles and details.

slat profile
No. 34 Slat Profile

Factory Finish Colors






IMPORTANT NOTICE: Due to variations in computer monitors, such as resolution and color settings, this standard color chart should only be used as a general guide. If you have a job where you need to be exactly sure of the accuracy of the color shade shown, please contact a customer service representative by using the "Contact Us" link at the top of this page.

Materials & Construction

Wayne Dalton’s Thermotite Model 800C insulated rolling service doors are composed of flat slats that provide a natural water-shed, helping to reduce corrosion. Polyurethane insulation with an R-value of 7.7 fill 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.

The 800C Series features a strong double-angle bottom bar that reinforces the lower edge of the curtain against wind pressure and permits varied lock, astragal, and safety edge options. This bottom bar is designed for easy installation and does not require fasteners protruding into the guide openings, so the bottom bar does not interfere with door operation.

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. (Deflection is limited to 0.033" per lineal foot of span.) If required, barrel rings of malleable iron or stamped steel may be provided to assure proper counterbalance. Oil-tempered, torsion-type counterbalance springs are wound from heat-treated steel, providing accuracy in balancing the door. Barrel plugs connect ends of springs to barrel and tension rod. Tension rod of steel shafting holds fixed ends of springs and carries torsion load of spring counterbalance.

Spring tension adjusting wheel is normally mounted outside the bracket on end of tension rod. Inside adjusting wheel for tight side-room applications is available in limited sizes.

The hood cover encloses the curtain coil and counterbalance mechanism. Slat hoods are available on gray, brown, beige, and white doors.