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Recessed lights in ventilated vaulted ceiling

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Recessed lights in ventilated vaulted ceiling (post #207223)

bzwiers on Wed, 12/19/2012 - 16:09
in

I'm currently doing a full remodel of our home in Western Washington. The ceilings are 2x12 will full ridge and soffit venting and I'm looking for input/experience/advice on the best insulation as well as the use of recessed lights. There are no hips, valleys, dormers or other complexities to the roof line other then two skylights one on each side of the ridge. I was recently reading my back issues of FHB and wondered  - does the use of new LED technology bulbs lower the heat output of the cans sufficiently that condensation from these lights is no longer an issue in a ventilated vaulted ceiling

Thanks in advance - Brent

-A +A

Brent (post #207223, reply #1 of 8)

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calvin in reply to bzwiers [original] on Wed, 12/19/2012 - 16:41

Can't comment on the new LED's............

but

I can reinforce the warnings of condensation within cans in a vaulted ceiling (here in northern Ohio).

If you use air sealed cans, don't have aquariums, plants or other moisture producing things in that room or area, insulate around and above the cans, you might not see a problem.

But, you'll be limiting the amount of insulation in that relatively shallow rafter space by the depth of the cans.

Best of luck.

A Great Place for Information, Comraderie, and a Sucker Punch.

Remodeling Contractor just outside the Glass City.


http://www.quittintime.com/

 

It's unclear -- is this a (post #207223, reply #2 of 8)

by DanH in reply to bzwiers [original] on Wed, 12/19/2012 - 17:14

It's unclear -- is this a flat ceiling with an "attic" above, or a vaulted ceiling of some sort.  If the former then the best approach is to build tightly-sealed, insulated boxes in the "attic" around the light fixtures, with enough cubic feet to meet the lamp manufacturer's spec (if not IC rated fixtures).  If the latter then good luck!


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville

Sorry - it is certainly the (post #207223, reply #3 of 8)

by bzwiers in reply to DanH [original] on Wed, 12/19/2012 - 17:38

Sorry - it is certainly the later. 2x12 rafter bays each individualy ventilated and insulated.

metal roof, ice and water shield, sheeting, rafters,  insulation (with 2" of air space in each bay with baffles), drywall/paint.

Dan, in the title of the thread. (post #207223, reply #4 of 8)

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calvin in reply to DanH [original] on Wed, 12/19/2012 - 19:04

Recessed lights in ventilated vaulted ceiling (post #207223)

A Great Place for Information, Comraderie, and a Sucker Punch.

Remodeling Contractor just outside the Glass City.


http://www.quittintime.com/

 

Who reads titles? (post #207223, reply #5 of 8)

by DanH in reply to
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calvin [original] on Wed, 12/19/2012 - 19:46

Who reads titles?


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville

easy answer- (post #207223, reply #6 of 8)

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calvin in reply to DanH [original] on Thu, 12/20/2012 - 06:31

DanH wrote:

Who reads titles?

 

Well, book reviewers for one.

A Great Place for Information, Comraderie, and a Sucker Punch.

Remodeling Contractor just outside the Glass City.


http://www.quittintime.com/

 

Yeah, I suppose it's easier (post #207223, reply #7 of 8)

by DanH in reply to
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calvin [original] on Thu, 12/20/2012 - 07:08

Yeah, I suppose it's easier than reading the book.


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville

I recently had the same (post #207223, reply #8 of 8)

by javaboy in reply to bzwiers [original] on Thu, 12/20/2012 - 10:39

I recently had the same dilemma.  After hours of research and trying to figure our where to get low profile cans at I took the advise of almost everyone and I didn't do it.  I installed regular ceiling junction boxes instead.

 
Last night at The Home Depot I saw LED recessed (or disk is what they called it) lights that fit inside regular junction boxes.  I picked one up to try out but haven't installed it yet.  It might be a option.