Foam over existing duct insulation...? - Page 7

>So, just out of curiosity, might you tell me what your beef
>is?
>Sincere thanks,

>On Sat, 22 Mar 2008 10:13:24 -0400, Kenneth
>>So, just out of curiosity, might you tell me what your beef
>>is?
>>Sincere thanks,
>Absolutely, you're a dumb ass that is not listening to some very good
>advice you were given, namely, you are in over your head. Just the
>fact that you want to foam your ducts proves it. Several people have
>told you why not to do it yet you persist. Let me help you here and
>give you the answer you are dying to hear; go ahead and foam away!.
>Dumbass.

> Howdy,
> We have a geo water to air system with ducts running through
> an unconditioned attic.
> The ducts are not sealed, but they are (very modestly)
> insulated with a shiny, "quilted" looking product.
> We are soon to foam over them, but...
> There are two different approaches in the bids we have:
> One wants to remove the quilted stuff, and then foam over
> the bare metal of the ducts.
> The other wants to foam over the existing insulating
> material.
> What would you suggest in this regard, and why?
> Sincere thanks,
> --
> Kenneth
> If you email... Please remove the "SPAMLESS."

>> Howdy,
>> We have a geo water to air system with ducts running through
>> an unconditioned attic.
>> The ducts are not sealed, but they are (very modestly)
>> insulated with a shiny, "quilted" looking product.
>> We are soon to foam over them, but...
>> There are two different approaches in the bids we have:
>> One wants to remove the quilted stuff, and then foam over
>> the bare metal of the ducts.
>> The other wants to foam over the existing insulating
>> material.
>> What would you suggest in this regard, and why?
>> Sincere thanks,
>> --
>> Kenneth
>> If you email... Please remove the "SPAMLESS."
>Down here in the South they will foam the duct but we have very high
>humidity and sweating is a problem. The material your
>describing( silver quilted stuff) is a new product that when
>installed properly works very well. Are you only spraying the ducts?
>It would be well worth it to spray the roof and seal off the attic
>completely if you stop the heat lose/gain at the source "the roof"
>then you are way ahead of the game on insulating and improving the air
>quality in your home by stopping moisture. The insulation sprayed
>under the roof in your attic will also make your roof(shingles) last
>longer.

> On Mon, 24 Mar 2008 14:36:02 -0700 (PDT),
> csstouffer@gmail.com wrote:
>> wrote:
>>> Howdy,
>>> We have a geo water to air system with ducts running through
>>> an unconditioned attic.
>>> The ducts are not sealed, but they are (very modestly)
>>> insulated with a shiny, "quilted" looking product.
>>> We are soon to foam over them, but...
>>> There are two different approaches in the bids we have:
>>> One wants to remove the quilted stuff, and then foam over
>>> the bare metal of the ducts.
>>> The other wants to foam over the existing insulating
>>> material.
>>> What would you suggest in this regard, and why?
>>> Sincere thanks,
>>> --
>>> Kenneth
>>> If you email... Please remove the "SPAMLESS."
>> Down here in the South they will foam the duct but we have very high
>> humidity and sweating is a problem. The material your
>> describing( silver quilted stuff) is a new product that when
>> installed properly works very well. Are you only spraying the ducts?
>> It would be well worth it to spray the roof and seal off the attic
>> completely if you stop the heat lose/gain at the source "the roof"
>> then you are way ahead of the game on insulating and improving the
>> air quality in your home by stopping moisture. The insulation
>> sprayed under the roof in your attic will also make your
>> roof(shingles) last longer.
> Howdy,
> Thanks for your thoughts on all this...
> I was surprised by the very last comment you made, because
> that is the opposite of the information I have been
> receiving from other folks.
> One insulation contractor told me that foaming under the
> sheathing could void the shingle warrantee.
> I certainly don't disagree, but because I have no first hand
> knowledge of any of this I would ask how spraying under the
> roof could extend the life of the shingles.
> All the best,
> --
> Kenneth
> If you email... Please remove the "SPAMLESS."