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Subject Author Date
Insulation - Southern Louisiana Jude Alexander 12-29-2007
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Posted by Jude Alexander on December 30, 2007, 4:35 pm

>
>>
>>> Jude Alexander wrote:
>>>
>>>> Thanks. The R values are close to what I suggest in my plans. Minimum
>>>> R11 (I think I'll go up to the 13, however) in the wall and I'll stick
>>>> with my R30 vs. R20 in my attics. This gives me something to show the
>>>> guy. :)
>>>
>>> The Building Science guys know their stuff. They've approached it all
>>> from a physics standpoint - what really happens and how can you really
>>> build it. 99% of the time, I do what they recommend. It's really hard
>>> to go wrong with it...
>>>
>>> Note that they recommend using rigid at the perimeter wall... Something
>>> you don't see everyday, usually.
>>
>> That's true. Usually, people use the "pink stuff" (fiberglass).
>
> Don't know what it is or what its for but my house has a very thin layer,
> maybe 1/8" thick, of light blue foam all over the outside, directly under
> the viny siding.
> It appears to have taken the place of felt.
> I don't like it.
>



Posted by Jude Alexander on December 30, 2007, 4:35 pm

>
>>
>>> Jude Alexander wrote:
>>>
>>>> Thanks. The R values are close to what I suggest in my plans. Minimum
>>>> R11 (I think I'll go up to the 13, however) in the wall and I'll stick
>>>> with my R30 vs. R20 in my attics. This gives me something to show the
>>>> guy. :)
>>>
>>> The Building Science guys know their stuff. They've approached it all
>>> from a physics standpoint - what really happens and how can you really
>>> build it. 99% of the time, I do what they recommend. It's really hard
>>> to go wrong with it...
>>>
>>> Note that they recommend using rigid at the perimeter wall... Something
>>> you don't see everyday, usually.
>>
>> That's true. Usually, people use the "pink stuff" (fiberglass).
>
> Don't know what it is or what its for but my house has a very thin layer,
> maybe 1/8" thick, of light blue foam all over the outside, directly under
> the viny siding.
> It appears to have taken the place of felt.
> I don't like it.

Why is that?



Posted by Jude Alexander on December 30, 2007, 8:41 pm

>
>>
>>>
>>>>
>>>>> Jude Alexander wrote:
>>>>>
>>>>>> Thanks. The R values are close to what I suggest in my plans.
>>>>>> Minimum R11 (I think I'll go up to the 13, however) in the wall and
>>>>>> I'll stick with my R30 vs. R20 in my attics. This gives me something
>>>>>> to show the guy. :)
>>>>>
>>>>> The Building Science guys know their stuff. They've approached it all
>>>>> from a physics standpoint - what really happens and how can you really
>>>>> build it. 99% of the time, I do what they recommend. It's really
>>>>> hard to go wrong with it...
>>>>>
>>>>> Note that they recommend using rigid at the perimeter wall...
>>>>> Something you don't see everyday, usually.
>>>>
>>>> That's true. Usually, people use the "pink stuff" (fiberglass).
>>>
>>> Don't know what it is or what its for but my house has a very thin
>>> layer, maybe 1/8" thick, of light blue foam all over the outside,
>>> directly under the viny siding.
>>> It appears to have taken the place of felt.
>>> I don't like it.
>>
>> Why is that?
>
> That I don't like it?
> I'm not familiar with it, the joints aren't taped or lapped, and its
> difficult to drive nails in it.
> I learned this this summer when I pulled a strip of siding off to anchor
> the ledger boards for my new porch.
> I'd prefer felt or tyvek.

I understand now. I was just wondering what about it you didn't like.



Posted by Chuck News on December 31, 2007, 1:36 am

>
>>
>>> Jude Alexander wrote:
>>>
>>>> Thanks. The R values are close to what I suggest in my plans. Minimum
>>>> R11 (I think I'll go up to the 13, however) in the wall and I'll stick
>>>> with my R30 vs. R20 in my attics. This gives me something to show the
>>>> guy. :)
>>>
>>> The Building Science guys know their stuff. They've approached it all
>>> from a physics standpoint - what really happens and how can you really
>>> build it. 99% of the time, I do what they recommend. It's really hard
>>> to go wrong with it...
>>>
>>> Note that they recommend using rigid at the perimeter wall... Something
>>> you don't see everyday, usually.
>>
>> That's true. Usually, people use the "pink stuff" (fiberglass).
>
> Don't know what it is or what its for but my house has a very thin layer,
> maybe 1/8" thick, of light blue foam all over the outside, directly under
> the viny siding.
> It appears to have taken the place of felt.
> I don't like it.

I have worked on a project where the owner requested "Blue Wood" for the
framing.
What I understand is the "blue" is a coating that preserves the wood,
prevents the wood from mold and the like. It doesn't
have anything to do with the insulation. If you know that felt or other
building paper wasn't used over the 'blue' then it must do
both, building paper and a wood preservative.
I know if you search "Blue Wood" with Google's you will find out exactly was
it does.

CID...


Posted by Chuck News on December 31, 2007, 1:58 am

>
>>
>>>
>>>> Jude Alexander wrote:
>>>>
>>>>> Thanks. The R values are close to what I suggest in my plans.
>>>>> Minimum R11 (I think I'll go up to the 13, however) in the wall and
>>>>> I'll stick with my R30 vs. R20 in my attics. This gives me something
>>>>> to show the guy. :)
>>>>
>>>> The Building Science guys know their stuff. They've approached it all
>>>> from a physics standpoint - what really happens and how can you really
>>>> build it. 99% of the time, I do what they recommend. It's really hard
>>>> to go wrong with it...
>>>>
>>>> Note that they recommend using rigid at the perimeter wall...
>>>> Something you don't see everyday, usually.
>>>
>>> That's true. Usually, people use the "pink stuff" (fiberglass).
>>
>> Don't know what it is or what its for but my house has a very thin layer,
>> maybe 1/8" thick, of light blue foam all over the outside, directly under
>> the viny siding.
>> It appears to have taken the place of felt.
>> I don't like it.
>
> I have worked on a project where the owner requested "Blue Wood" for the
> framing.
> What I understand is the "blue" is a coating that preserves the wood,
> prevents the wood from mold and the like. It doesn't
> have anything to do with the insulation. If you know that felt or other
> building paper wasn't used over the 'blue' then it must do
> both, building paper and a wood preservative.
> I know if you search "Blue Wood" with Google's you will find out exactly
> was it does.
>
> CID...

Here is the web site for BLUWOOD:

http://www.bluwood.com/

CID...


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