Additional items to observe:

■ Verify electrical outlet for door opener use.

■ Note any lights or stairs in the way.

■ Verify all jambs are in good condition, header is stable.

■ Verify the level of the floor. Was the previous door a custom fit?

■ Note any pipes, ductwork, etc. above the door that might obstruct operation of the door.

1) Window Lite Glazed section with various types of glass or acrylic to allow for light and visibility.

2) Sections Steel panels reinforced with stiles interconnected with hinges and rollers.

3) Bottom Bracket A structured support that provides for attachment of lifting cables.

4) Cable Drum Grooved drums on the torsion spring shaft that allow lifting cables to wind when garage door opens.

5) Torsion Springs Provides the means to raise and lower garage doors via cable winding on drums.

6) Extension springs  extend along both horizontal tracks

7) Rear Track Hanger

8) Track Guides a section to raise or lower garage doors.

Track Types:
Standard
Low Headroom

Track Components:
Vertical Track: on either side of opening.
Horizontal Track: attached to ceiling.
Radius: curved track

Standard Heights:
7 feet high - 4 sections high
8 feet high - 5 sections high

Extended Heights - available up to 16 feet high

Headroom Chart
4-1/2'–10" – low headroom track
10" – standard track/extension spring
12" – standard track/torsion spring
14" or more – required for operator

Garage Door Insulation

Insulation and the steel gauge of a door is important. If you plan on spending a lot of time in your garage, have a room above or adjacent to your garage, or have a lot of activity, such as children playing in front of the doors, then you want to consider the R-Value and the thickness of the steel. R-Value is a measurement of thermal efficiency of a door. The higher the R-Value the better insulated the door. If there is the chance of basketballs hitting the outside of the door, you need to consider a heavier gauge steel, such as a 24 gauge. Remember, the lower the number, the stronger the steel.

What is insulation and why is it important?

Insulation is material that has the ability to reduce heat or cold transmission.

Insulation Terms:

BTU
Amount of heat necessary to raise the temperature of one pound of water one degree Fahrenheit.

K-Value
Laboratory-determined value of the thermal conductance of a material.

R-Value
Ability of a material to retard the transmission of heat. The higher the R-Value, the better the insulating performance.

U-Value
Amount of heat, in BTU, transmitted through one square foot of material (the door) in one hour at a temperature difference of one degree Fahrenheit from one side to the other. The lower the U-value, the better the insulation.