The Door and Access Systems Manufacturer's Association
DASMA Garage Door test for Home Inspectors
Overhead Door
- Door panels: No damage, separation, or sagging;
- Pivot arm connection at same level as top rollers;
- Stable operation up and down.
- Signs of weathering/age (cracks, peeled paint)
Track
- All portions stable
- Good condition
Rollers
- Bearing type, not plastic (2yr. lifespan for plastic).
Springs
- Extension springs have containment cable;
- Door stays in place when manually disconnected and partially opened;
- Securely attached to wall.
Automatic Opener
- Automatic opener operable;
- Manual disconnect operable;
- Stable when operating
- Less than 12 years old (typical lifespan)
Automatic Reverse
- Passes 2x4 test (operates satisfactorily);
- Photo sensor functional;
- Photo sensor within 6 inches of floor.
- Computer controlled or manual adjust
Note: the 2x4 test is controversial but is the method formally recommended by garage door manufacturers and DASMA and thus, defensible in court.
Note: place the 2x4 directly beneath the pivot bracket.
Also check theGarage Door Labels.
Switch
- Located at least 5 feet above walking surface (including stair treads);
- Located away from moving parts.
Conventional Door to the Exterior
- Operation;
- Hardware condition;
- Door condition.
Conventional Door to the Living Space
- Operation;
- Hardware condition;
- Door condition;
- Handrail if 4 risers or more;
- 20-minute fire-rated (attached garage only):
- Solid wood 1⅜inch (35 mm) minimum;
- Steel door 1⅜inch (35 mm) minimum;
- No pet doors;
- Doors with glass: glass must be fire rated.
Fire Separation (R302.6)
Wall
- Minimum ½ inch drywall on garage side;
- Drywall must have joints taped;
- Extends from floor to roof, or floor to fire separation compliant ceiling;
- Penetrations of metal only;
- Attic vertical access hatch must comply with wall requirements.
Ceiling
- Ceiling with living space above: ⅝-inch type X drywall;
Floors
- Non-combustible
- Sloped