Just bought Owens-Corning fiberglass insulation. Warning printed on paper
facing say it is flammable and to keep away from heat sources, says to see
package inserts. No package inserts in packages. Does the paper facing have
to be cut back from where the electrical boxes are for the ceiling lights.
This is not recessed lighting. Does the insulation have to be cut back from
the boxes? If so, what distances are required for insulation and/or paper
You are correct. When I phoned Owens-Corning, it appears they look at their
database and then read back an answer which seems to match the question.
Their e-mailed response to me says it is necessary to cut back the paper for
recessed lighting, but that wasn't my question to them. I plainly stated it
was not recessed lighting. Bottom line is, Owens-Corning probably has a
bunch of customer support people in India or China reading scripts from a
computer and they don't have any knowledgeable people capable of answering a
question correctly. I've done a lot of extra work for nothing based on their
Ok, here's a variant on the original question..
I had some recessed lights installed a few years back. There's blown in
insulation in my attic. From the looks of it, the blown in stuff is
shredded pink insulation mixed with rock wool. It's definitely not
In some places, the electrician removed all the insulation around the
lights, in others, he covered the lights.
1) What is the proper method of insulating around recessed lighting?
2) What should be done to minimize infiltration around the fixtures?
3) Should radiant barrier over the blown in insulation be cut out around
the recessed lights?
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