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Posted by on October 23, 2007, 2:29 pm
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>
>
>
> >> > Question 2: Would a vapor barrier make sense in the attic? Would it be
> >> > most effective under the insulation? Over the insulation? Or against
> >> > the roof?
>
> >> I also have a similar house in Northern Virginia. My attic has a layer of
> >> tar paper laying on the ceiling drywall which serves as a vapor barrier.
> >> You might check to see if you have that.
>
> >> If you don't have it, it needs to be on the heated side of the house, i.e.
> >> under the insulation.
>
> > There's existing insulation in the attic - above the ceiling, between
> > the rafters. It's old. Probably original or close to it.
>
> > I believe that is does have an existing paper side to it.
>
> > So, it looks like a vapor barrier is out of the question, since I am
> > not taking out the old stuff.
>
> The "paper" is a vapor barrier probably.
>
>
>
> > As for the basement, it is insulated and comfortable during the
> > winter. The gas furnace is in a room with the laundry, and the main
> > duct supplying hot air to the rest of the ducts. I am thinking about
> > insulating this because the duct is so hot, you cannot even touch it.
> > That to me, says heat is escaping.
>
> That heat will be warming the area around that duct. Is it a heated area?
>
> If the duct is so hot you can't touch it, you are either touching the exhaust
> duct, or your furnace is heating the air a lot hotter than any furnace I've
> experienced. Have you cleaned or replaced the air filter recently? It could be
> limiting the air flow.
>
> Bob
The is changed regularly, I have a thermostat that also counts the
hours and has an indicator for when the filter should be changed, so,
it's not the filter...
But the exhaust duct.... hmm... let me look at that.
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