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Old 09-24-2011, 08:05 PM   #1
jkk
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Retrofit attic baffles with blocking in open eaves


Now that I have a ridge vent I need to install some soffit vents and baffles. I currently have 2x6 joists with (almost) vertical 2x6 blocking, blown insulation and open eaves. I've thought about using Accuvent baffles but I'm not sure what to do with the blocking. I could cut holes in tge blocking and put in some 4" round vents ... would be lots of drilling, maybe 50-60 holes to get proper area.

Any alternative suggestions?

Last edited by jkk; 09-25-2011 at 07:22 AM. Reason: changed 3" round vents to 4"
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Old 09-24-2011, 09:37 PM   #2
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Retrofit attic baffles with blocking in open eaves


Post a picture if you can---not familiar with the locking you are describing.
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Old 09-24-2011, 10:04 PM   #3
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Retrofit attic baffles with blocking in open eaves


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Post a picture if you can---not familiar with the blocking you are describing.
Attached. Proposed locations for 4" vents shown.
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Retrofit attic baffles with blocking in open eaves-open-eave-blocking.jpg  

Last edited by jkk; 09-25-2011 at 08:37 AM.
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Old 09-25-2011, 09:31 AM   #4
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Retrofit attic baffles with blocking in open eaves


Odd framing feature----are those blocks visable from the outside?

Your round vent idea sounds good---tedious job---might be someone else has a better solution--

Let's see----mike---
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Old 09-25-2011, 09:57 AM   #5
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Retrofit attic baffles with blocking in open eaves


I think you are on the right track.

What is the rest of the venting in the attic like? Do you have condensation issues?
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Old 09-25-2011, 10:06 AM   #6
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Retrofit attic baffles with blocking in open eaves


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Originally Posted by oh'mike View Post
Odd framing feature----are those blocks visable from the outside ?
Not really visible as they're painted dark brown. You can only see them if you're under the eave and looking up.
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Old 09-25-2011, 10:09 AM   #7
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Retrofit attic baffles with blocking in open eaves


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Originally Posted by Windows on Wash View Post
I think you are on the right track.

What is the rest of the venting in the attic like? Do you have condensation issues?
Gable vents which I plan to at leawst temporaily close to see what happens to attic temps. Checking the temperature seems easy with an infrared sensor.

No condensation problems, even with family of 7 and lots of home cooking.
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Old 09-25-2011, 10:11 AM   #8
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Retrofit attic baffles with blocking in open eaves


After further review ... I may have to abandon the Acccuvents since I don't have access to the vertical face of the plate (drywall in the way). Maybe I'll just have to accept using the styrofoam baffles.
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Old 09-25-2011, 11:07 AM   #9
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Retrofit attic baffles with blocking in open eaves


After more review, the round vents won't help much as the blown insulation covers the back of the 2x6 blocking. So, in order to get in air to flow on top of the baffle, maybe cuting out a strip or some pieces at the top of the blocking and installing some 1-2" mesh will work. See the red strip in pix to see where I would cut.
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Old 07-27-2012, 06:01 PM   #10
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Retrofit attic baffles with blocking in open eaves


I've added another picture to help folks 'see' what I'm trying to do.

I'm trying to get air into the attic so the ridge vent works properly. My dilemma: what's the simplest, best way to cut/modify this blocking to get air into this attic?

Any suggestions?
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