Isoltherm(IT) & Isolair(IA) Rolling Steel Service Doors


MODEL DESCRIPTIONS

ISOLTHERM INSULATED SERVICE DOORS

100-IT or IA Manual Push-Up Operation
200-IT or IA Chain Operation
400-IT or IA Motor Operation, Bracket Mount
500-IT or IA Motor Operation, Side Mount

102-IT or IA Manual Push-Up Operation, Between Jamb, Under Lintel Mount
202-IT or IA Chain Operation, Between Jamb, Under Lintel Mount
203-IT or IA Chain Operation Thru-Wall Chain Hoist

SPECIFICATIONS FOR ISOLTHERM INSULATED SERVICE DOORS

CURTAIN:
Curtain shall be made of interlocking flat slats with channel cross-section of 2-7/8″ wide by 5/8″ deep. Slats shall be fabricated of cold-rolled, hot-dipped galvanized (1.25 oz. of zinc per sq. ft. of flat metal per ASTM standards). Curtain outer gauge shall be minimum 22 gauge and inner curtain shall be minimum 24 gauge. Core insulation shall be 1″ thick expanded polystyrene having a minimum insulated value of R-5

HOOD:
Hood shall be constructed of galvanized sheet steel not less than 24 gauge, formed to fit contour of curtain roll. Hoods shall be reinforced at top and bottom edges by structural steel angle. Hood shall be equipped with vinyl-strip baffle to stop air flow through hood.

BARREL:
Barrel shall be of steel pipe, and shall be adequate to carry door weight with deflection not to exceed 0.03 inches per foot of door width. Door shall be counterbalanced with oil tempered, helica torsion springs with a minimum of 20,000 cycles.Spring tension shall be adjustable by exterior adjusting wheel, accessible from the outside without removing the hood.

GEARS:
All gears shall be of high-grade cast iron, made from machine-cut patterns. For chain-operated doors, gears shall be designed so that maximum pull required will not exceed 35 pounds.

BEARINGS:
Main support bearings shall be permanently lubricated, sealed ball bearings

WEATHER STRIPPED GUIDES:
Door guides shall be fabricated of structural steel angles not less than 3/16″ thick. Leading edges of guide channels, both interior and exterior, shall have a continuous strip of vinyl attached in a manner designed to sweep the interior and exterior surfaces of the curtain and inhibit air passage around the ends of the curtain. Guides shall be fastened to wall by lag screws or machines bolts not less than 3/8″ diameter, spaced no more than 30″ apart.

BRACKETS:
Brackets shall be constructed of malleable steel plate of sufficient thickness to support weight of curtain and barrel assembly and designed to form an end closure support of the hood. Drive bracket shall be equipped with permanently lubricated, sealed ball bearing.

FINISH:
Curtain and hood shall be hot-dipped galvanized and phosphate-treated for paint adherence. Curtain shall have a two-coat baked-on prime finish. All other parts shall have one coat of rust-inhibitive shop primer.

SHOP DRAWINGS: 
We can send shop drawings for any of products upon request.

SPECIFICATIONS FOR ISOLAIR-CONTROL DOORS 

CURTAIN:
Curtain shall be made of interlocking flat slats with channel cross-section of 2-7/8″ wide by 5/8″ deep. Slats shall be fabricated of cold-rolled, hot-dipped galvanized (1.25 oz. of zinc per sq. ft. of flat metal per ASTM standards). Curtain shall be of sufficient strength to withstand 32 psf wind pressure. Malleable end locks shall be fastened to each slat with a minimum of 2 rivets. The bottom of the curtain shall be equipped with two angles, mounted back to back securely fastened for reinforcement and for sill or floor contact. Astragal shall be attached to bottom of curtain angles to seal door to floor.

HOOD:
Hood shall be constructed of galvanized sheet steel not less than 24 gauge, formed to fit contour of curtain roll. Hoods shall be reinforced at top and bottom edges by structural steel angle. Hood shall be equipped with vinyl-strip baffle to stop air flow through hood.

WEATHERSTRIPPED GUIDES:
Guides shall have a continuous strip of vinyl attached to the leading edge of the outside exposed angle. This strip shall be shaped to sweep the curtain surface and prevent air passage around the end of the curtain and through the guide channel. Guides shall be fastened to wall by lag screws or machines bolts not less than 3/8″ diameter, spaced no more than 30″ apart.