Strategies for insulating on top of & around heat sources in attics (such as recessed light fixtures).

Replies to This Discussion

Permalink Reply by Bud Poll on January 19, 2012 at 3:51pm

Hi Patrick, If you have looked at those dams with IR with the heat source on you know they are dumping heat like mad.  Exactly what you can do should be discussed with the local code official.  IMO, a proper covering that would allow a full insulation layer over it is needed.  Doing such without breaking the rules, the fire codes, and electrical codes is the trick and only the AHJ can answer that.  But don't apply the same solution to another district without talking to that official as each may have their own rules.  Personally, I advise they replace the fixture with a IC/AT rated, but the real world needs an easier fix.

Bud

• ▶ Reply

Permalink Reply by Patrick Michaelyan on January 19, 2012 at 4:07pm

Very good and proper advice. Looks like it's back to the conversation with the code officials.

• ▶ Reply

Permalink Reply by Bud Poll on January 19, 2012 at 4:18pm

One of your arguments to present to your code official is that lights can be installed in small enclosed drop ceilings, like a kitchen drop that was created after the drywall was installed.  I have not seen instructions stating that the area above has to be open to an attic and many are installed in joist cavities between floors.  Logic is on the side of the Gypsum box Bob is suggesting, just need the ok to use it.

Bud

• ▶ Reply

Permalink Reply by Patrick Michaelyan on January 19, 2012 at 4:24pm

This was my sense as well, so I appreciate you raising that example.

• ▶ Reply

Permalink Reply by Bob Blanchette on January 19, 2012 at 4:03pm

Gypsum board would be good to make the "box" out of. It's easy to work with and cheap. probably wouldn't be a bad idea to box in all of the attic electrical boxes/bathroom fans and use some foam sealer or drywall mud to seal them up.

• ▶ Reply