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Commercial Doors Architectural Specifications

Model: 3" ES
(26 Ga or 20 Ga Exterior)

Click here to download specifications in pdf format

I. GENERAL

A. Work Included
The doors will be Model 3" ES as manufactured by Midland Garage Door Mfg. Co.

B. Other Work
Related structure work, opening preparation, field painting and electrical work etc. falls into the responsibility of other trades.

II. PRODUCT

A. Sections
Sections will be roll-formed, hot dipped, galvanized 26 ga. pebble textured exterior and interior (optional 20 ga. exterior available). Sections will be pressure bonded to a closed cell polystyrene core and will have a thickness of 3". Sections will incorporate a PVC thermal break to prevent heat or cold conductivity.

B. Insulation
Insulation will be rigid 3" closed cell extruded polystyrene free of CFCs and HCFCs and will be laminated to provide strength and prevent loss of thermal efficiency over time. The insulation will have a calculated R-Value of 17.05 and U-Value of .06 based on certified test data.

C. Air Infiltration
All doors will be constructed with a PVC strip and bulb seal between sections to resist air infiltration.

D. Windload
Doors will be designed to meet or exceed industry standards for windloads (ANSI/ NAGDM 102-1988). Deflection of door in the horizontal position will not exceed 1/120 of the door width. Consult factory for unusual requirements.

E. End Stiles
End stiles will be 16 gauge steel and incorporate a thermal break to help prevent heat/cold conductivity between the inside and outside steel skins.

F. Hardware
Hinges and fixtures will be galvanized steel. Full floating ball bearing rollers will have hardened steel races. Roller sizes will be adequate for design requirements and limitations.

G. Track
Track is 2" or 3" depending upon door size and requirements and angle mounted.

H. Spring Counterbalance
Counterbalance shall be oil tempered, helical wound torsion springs mounted on a ball bearing cross header shaft engineered for industrial application that comply with properties specified by ANSI/NAGDM 1021988. Galvanized aircraft type lifting cables with minimum safety factor of 8 to I and cast aluminum drums are standard.

I. Lock
Lock will be interior mounted slide lock. (Optional commercial keyed lock is available.)

J. Weatherstrip
PVC Weatherstrip between sections meeting rubber tube seals fitted inside every joint. Bottom weatherstrip will be U'd shape astragal fastened to the bottom of the door with an extruded aluminum holder for an effective seal at the sill.

K. Finish
Finish will be baked-on polyester over epoxy primer. White interior and white or brown exterior. (20 GA exterior white only)

L. Operation
Operation will be by manual pull rope. Optional chain hoist and electric operator are available.

III. EXECUTION

Installation
Doors should be installed in compliance with Midland Garage Door Mfg. Co. instructions by authorized Midland Garage Door Installation Professionals.

OPTIONS

• Thermal Glazing
• High Cycle Springs
• Jamb Weatherstrip
• Electric Operator
• Chain Hoist
• Bottom Sensing Edge
• Rubber Header Seal
• Full Vision Aluminum Sections
• Carwash Modification

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