Third Coast Material Handling LLC

Product

Product Specification

Features

Best

Sectional Door

Torsion spring (high cycle available)

• Door sections are hinged and sections are guided on door track with ball bearing rollers
• Applications: Standard lift, high lift or full vertical lift, depending on head room
• Door is balanced throughout the door travel; typically less than 30 pounds of force required throughout the door travel
• Spring exposed

Rolling Door

Torsion spring (high cycle available)

• Door curtain slides between heavy angle iron guides using end guide wear plates; curtain rolls into a "barrel" above door opening.
• Door balance differs throughout the door travel.
• Out of balance typically adjusted by operator mechanism (gearing changed for doors that are more out of balance)
• Designed for not more than 25 pounds of force
• Only small doors use manual push-up operation
• Able to configure large "special" doors for special applications

Sheet Door

Torsion spring

• Balance differs throughout the door travel
• Out of balance typically adjusted by operator mechanism
• Designed for not more than 25 pounds of force
• Doors are lighter than the rolling doors, therefore a larger range available in manual push-up
• Over 10' x 10' use chain hoist

Sectional Door

Typically 24" high sections hinged together

• Very flexible in material (steel and aluminum) and steel gauges
• Colors: baked-on enamel or custom finish
• Multiple exterior appearances (raised panel, flush sections, ribbed, full view glass), various window configurations
• Various options of insulation type and values

Rolling Door

Typically 2-5/8" high slats hemmed together

• Available in a variety of gauges and materials including aluminum and stainless steel
• 1 or 2 slat profiles; uniform curtain thickness
• Foamed-in-place urethane insulation; R-values typically less than 8
• Perforated slats allow for air flow while still providing security
• Windows are riveted in place; typically 2" x 10"

Sheet Door

Typically 24" high sections hemmed together

• Typically 26 gauge sheets; available in a variety of colors; best paint warranty in the industry (25-year)
• Small windows
• Foil covered "blanket" insulation available; R-value 3

Sectional Door

More components

• Sections hinged with individual hinges spaced no more than 48" on center
• Ball bearing rollers designed for size and weight of door
• Torsion springs power unit open; easily lubricated
• Lift cables designed for 7:1 safety factor

Rolling Door

Components comprise curtain, springs, guides and operator

• Guides are heavy structural steel
• Springs are enclosed in barrel and hood (not visible)
• Curtain has continuous hinge (length of section); longer wear point

Sheet Door

Typically 24" high sections hemmed together; components similar to rolling door

• Roll-formed guides
• Enclosed barrel makes spring lubrication difficult

Sectional Door

More components

• More moving components will result in higher maintenance cost
• Components are readily accessible, enabling routine maintenance and increasing the life of the door
• Replacement of components typically easier than rolling or sheet doors

Rolling Door

Components comprise curtain, springs, guides and operator

• Guides are heavy structural steel; typically no maintenance required
• Springs are enclosed in barrel and hood (not visible) and difficult to change / maintain if one breaks
• Notched guide enables change of slat; difficult to remove and replace damaged slats.

Sheet Door

Typically 24" high sections hemmed together; components similar to rolling door

• Typically replace entire door sheet
• Exchange entire barrel if spring is broken

Sectional Door

Expanded polystyrene; CFC-free urethane

• Options for friction fit or sandwich (bonded) structure
• R-values up to 17.2
• U-values enabling government energy tax credits
• Vary by section thickness

Rolling Door

CFC-free urethane insulation or mineral wood insulation in fire doors

• Foamed-in-place between inside and outside slat cover; no thermal break
• R-value up to 8.1
• Mineral wool R-value up to 3

Sheet Door

Loose-fitting foil covered "blanket" of mineral wood

• Foil covered mineral wool "blanket" held in place by "stays"
• Rolls onto curtain barrel; not protected from the environment on inside of door

Sectional Door

Modest initial material cost; modest installation cost

• Different options determine initial cost of product; typically slightly higher than sheet door
• Depending on size of door, installation time and cost slightly higher than rolling steel or sheet doors because of the number of components and varying applications

Rolling Door

Initial cost higher; installation time and expense depends on size of door

• Different options determine initial cost of product; typically slightly higher than section and sheet doors
• Depending on size of door, installation time and costs slightly higher than sheet doors; weight of the door necessitates heavier equipment

Sheet Door

Initial cost similar to sectional door; installation time and expertise required typically least in the industry

• Different options determine initial cost of product; typically slightly less than sectional door
• Depending on size of door, installation time and costs less than sectional doors.