Wade wrote:
I have several lights throughout my house which have burn/black spots
above
the bulbs on the ceiling. The bulbs range from 6 inches in the bathroom
to
1 foot in the hallways from the ceiling in each candlebra. I reduced the
bulbs from 60 watts to 40 and in some cases down to 25 watts on the ones
which are 6 inches from the ceiling (in the bathroom). This hasn't
helped.
The house and light holders are original, about 20 years old and the spots
were not there when I moved in 5 years ago...at least not to the degree
they
are now. Have the bulbs changed to burn more hot or am I just buying low
quality bulbs? I can wash the ceiling and block it out & repaint, but I
don't want to do this if is going to happen again. I really don't want to
change the style of lighting at this time. Any thoughts/ideas would be
appreciated.

Wade

It is not the bulb that is doing it. It is the air in the room. Smoke
or other pollutants in the air end up on the ceiling (likely the ceiling is
cool (unheated area above?) and the pollutants are leaving the marks as the
air flow, caused by the warmth of the lights, is moving the pollutants up.

Clean the air and you will see no more black spots.

--
Joseph E. Meehan

26 + 6 = 1 It's Irish Math