In a wallwash detail the luminaire is typically a minimum of 12 inches away from the wall plane allowing for an even application of light that gives the wall texture a flat appearance.
Wall grazing lighting distance.
Both techniques will draw people s eyes to a wall but which technique is right will depend on the material of the wall and the effect you want to create.
Alternately we can light wall b using a technique called grazing.
For an eight foot ceiling mount wall washing fixtures 18 24 from the wall at a 30 degree angle.
Mount 10 degree beam spread wall grazing fixtures directly against the wall.
The wall wash lights should be mounted at a sufficient distance from the wall so that light falls on the wall at a wider angle.
Avoid unsightly wall textures or badly taped drywall or walls.
In a wall grazing detail the fixture is positioned very close to the wall no further away than 12 inches in order to highlight and bring out the wall texture.
The distance between the wall and the first light unit is the same as the distance between the wall and the last recessed light unit and is half the space between the recessed light fixtures.
Mounting distance spacing distance never more than 12 inches.
While wall washing reveals the smooth surface of wall a it would wash out the rich stone texture of wall b.
You can also check recessed lighting placement to know how to space the recessed lights for task and accent lighting layers.
Stratus wall grazer by pureedge lighting.
In some spaces 2 5 3 feet might be suitable.
Mounting a light less than 2 feet away from a wall will produce a grazing effect whereas a distance over 2 5 feet will widen the angle of the light beam and wash a wall out.