We are often faced with situations where existing lighting systems are outdated and must be made more efficient. The challenge is trying to maintain, if not attempt to exceed, the quality of the lighting output in these existing spaces while at the same time complying with stringent energy codes.
A lighting audit helps determine the condition of the existing lighting system and the architectural finishes of the area in question and asses the interaction between the lighting output and the occupants. Furthermore, an audit provides benchmarks for determining how effective the lighting improvements will be during and after the completion of the design process.
In essence, an audit is a process that investigates where cost-effective changes can be made.
- Note the age, condition, and quantity of the existing light fixtures.
- Document the type of lights and ballast used, wattage of the lamps and model numbers.
- Establish photometrics by recording the model numbers of the fixtures.
- Document the condition of the fixtures: lenses, painted surfaces, deterioration.
- Assess the condition of the surrounding environment so as to specify the appropriate replacement fixture that will minimize future maintenance costs.
- Maintenance and utility bills from the past 12 months
- Check all work surfaces with a light meter so as to establish existing lighting levels and distribution. Note the coloration and reflectance of the walls, floors, and ceiling in the space.