Interior Lighting

Artificial Lighting

There are fundamentally three types of interior lighting modes.

Central - Overhead
The most commonly employed where light radiates from centre overhead to the peripheral walls.
Commonly used because it is often the most economical format.

Peripheral - Wall
Is employed where it is desirable to create visual space by highlighting the walls and have light diffuse to the centre.
Of the three, this mode provides the softest or the most subdued forms of illumination.

Spot - Downlights
To have highs and lows within the one defined area to create a specific or tailored ambiance or to highlight a specific area or wall space, hangings,etc.

Variation to these themes is gained by varying the light intensity from the individual points with the use of dimmers at the switch.

Natural Lighting

(commonly known as roof lighting, skylighting etc.)

The one principle to observe when choosing to build, or install a natural overhead or roof light is that the formula, area over distance, prevails.

The amount of light you get in the room is correspondingly proportional to the size of opening you have at the roof and the distance it has to travel
before entering the room.

Example; The light entering a room from a window reduces in it’s intensity proportionately to the distance from the window.

There is no building product, materials or otherwise that circumvents this rule.
To every advantage there is a corresponding disadvantage.
Know what the disadvantage is before deciding on the advantage

Too much light into a room from an overhead source can be more detrimental than not enough.
The distance light has to travel from the ceiling to the floor is also a factor requiring consideration particularly where soft furnishings are to be considered.

Adequate ventilation to rooms with natural light gain also requires consideration.

Multi-Function Lighting

Multi function lighting combines interior lighting with another aspect of building design, such as ventilation, air conditioning, etc. The advatntage of this approach in lighting technology is that congested presence on the ceiling can be eliminated and an elegant outcome is realised.

For example natural lighting can be combined with conventional electric lighting so that the positioning of the light source remains the same both day and night.

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