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Old 03-13-2019, 11:22 PM   #16
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Re: Insulation on no attic roof.


Someone please advise me where on the planet they build homes with 14" rafters...
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Old 03-13-2019, 11:38 PM   #17
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Re: Insulation on no attic roof.


If 14" is what codes require you take what you have and add what you need, common approach. The actual depth needed is based upon minimum required r-value and type of insulation being used.

For new construction some will go with web trusses and they come in a wide range of depths.


Where r-60 or more is required a vaulted ceiling might be a poor choice.


Bud
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Old 03-14-2019, 01:45 AM   #18
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Re: Insulation on no attic roof.


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Originally Posted by Bud9051 View Post
Agreed the skylight is an issue, but the high and low placement of the new vents is confusing me.
Also, the blue tarp must be a different room than the clear plastic, rafters set on a small cut where the clear plastic rafters go down below the double top plate.

Bud
You can see the gap over the lower wall




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Old 03-14-2019, 02:32 AM   #19
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Re: Insulation on no attic roof.


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Old 03-14-2019, 07:33 AM   #20
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Re: Insulation on no attic roof.


Neal, I'm trying to locate that image and can't find where it was posted. I see the vent but don't see a top plate, actually the double top plate I'm looking for?

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Old 03-14-2019, 05:19 PM   #21
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Sorry, I was gone all day. Yes, I didn't realize how hodge podge things are in this house. I went into the attic after reading on here and realized the roof guy didn't attach my bathroom vent. Now for what I did learn...I was told there's no attic in that side (on that roof of the sunroom) well, I have a door that leads to the other side. I'll send the interesting photos. The first is a cold air return that wasn't attached. I can see into that on a ladder from the room in question. I couldn't understand what the wood wall with squares cut out was. So, I went through this door that was in the attic I use that leads to another. That's when I saw the old section of the house roof. I can't climb up on that old roof to get to the other side it's too high. The roof part shows those cut out squares though next is my new fan for the bathroom that is taped. I didn't get the unattached picture. Last is what I'm explaining that I can't get into. Its the old section/ side of the house... both sections (there's 3) are attached to the room I said has no attic on the one side but, has an attic on the other side.
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Old 03-14-2019, 05:26 PM   #22
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So, since there is a gap of attic in the wall... do I put baffles or something so I don't get moisture in the insulation I put in the ceiling of that room? I am trying to see which estimate person actually knew what is needed and if it's roll out insulation... that's doable but baffles or venting I want it done right. As you can see... this is like a rabbit hole in the alice in wonderland book. If I know it, i can fix it. If not and it's fixed wrong it'll begin another issue again. (That's what happened with the first roof guy who supposedly fixed the leak 3 years ago second roof guy just finished)
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Old 03-14-2019, 06:07 PM   #23
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Re: Insulation on no attic roof.


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So, since there is a gap of attic in the wall... do I put baffles or something so I don't get moisture in the insulation I put in the ceiling of that room? I am trying to see which estimate person actually knew what is needed and if it's roll out insulation... that's doable but baffles or venting I want it done right. As you can see... this is like a rabbit hole in the alice in wonderland book. If I know it, i can fix it. If not and it's fixed wrong it'll begin another issue again. (That's what happened with the first roof guy who supposedly fixed the leak 3 years ago second roof guy just finished)
That is a mess,
This hole cut thru the old roof near the top is what we would like to see when ever one roof covers another. So warm air can work it's way to the top of the attic an out the upper vents. The new vents they added above the sun room should look after the sun room even if that attic is not cut into.


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figure 7-14
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Old 03-14-2019, 06:13 PM   #24
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Re: Insulation on no attic roof.


You have a vented soffit, that needs to feed into each bay that we can't see from the pictures, there maybe a common space where on vent can feed more than one bay. . the air chutes want take air from the soffit all the way into the attic space above the living room.
Sky lights to be discussed separately.
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https://www.fema.gov/media-library-d...6/chapter7.pdf
figure 7-14
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Old 03-14-2019, 07:49 PM   #25
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Re: Insulation on no attic roof.


Quote:
Originally Posted by Bud9051 View Post
If 14" is what codes require you take what you have and add what you need, common approach. The actual depth needed is based upon minimum required r-value and type of insulation being used.

For new construction some will go with web trusses and they come in a wide range of depths.


Where r-60 or more is required a vaulted ceiling might be a poor choice.


Bud

If I was in his situation, I would just put what would fit and get on with life...
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Old 03-14-2019, 08:41 PM   #26
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Re: Insulation on no attic roof.


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Originally Posted by APA View Post
If I was in his situation, I would just put what would fit and get on with life...
That is what the last guy did, and here he is.
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https://www.fema.gov/media-library-d...6/chapter7.pdf
figure 7-14
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Old 03-14-2019, 08:59 PM   #27
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Re: Insulation on no attic roof.


Quote:
Originally Posted by Nealtw View Post
That is what the last guy did, and here he is.

The insulation caused a roof leak?
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Old 03-14-2019, 09:07 PM   #28
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Re: Insulation on no attic roof.


If you had read all of the posts you would understand the he has a major lack of ventilation which has been causing condensation which either was his water problem of in addition to a leak. I think it was his water problem, seen it before, but he isn't listening.

Telling him to "I would just put what would fit and get on with life..." is not responsible or informed advice.

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Old 03-14-2019, 09:12 PM   #29
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Re: Insulation on no attic roof.


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The insulation caused a roof leak?
The lack of venting cause mold, the amount of insulation depends on where he lives and what he can live with.

The leak as bad as that is alerted him to a bigger problem to a bigger problem, that needs to be discussed and understood so the OP can make an educated decision on what he should do.
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Old 03-14-2019, 09:27 PM   #30
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Re: Insulation on no attic roof.


Quote:
Originally Posted by Nealtw View Post
The lack of venting cause mold, the amount of insulation depends on where he lives and what he can live with.

The leak as bad as that is alerted him to a bigger problem to a bigger problem, that needs to be discussed and understood so the OP can make an educated decision on what he should do.



I understand that, but are we sure that the mold came from condensation or the leaky roof? I never understand how fiberglass insulation needs baffles because all I read on here is it is nothing but an air filter. Anyway, it looks more and more like a sizable check to a pro is all that is going to fix this. The best guess methods of a message board are not going to be appropriate in this case...
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