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Posted by Ted-san on December 2, 2008, 7:25 am
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> >ftwhd posted for all of us...
> >> >Douglas S wrote:
> >> >> Let's step back a second - why is the air cold? =A0Well the cold
> >> >> concrete is sucking the heat from the air.
> >> >> Why is the concrete cold? =A0Lack of perimeter insulation around th=
> >> >> slab.
> >> >> Check around the exterior of the slab for insulation board. =A0If i=
t is
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> >> >> not there, you need to dig a 2 ft. deep trench around the slab and =
put
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> >> >> 2" thick blue board around the slab. =A0Make sure you clean off the
> >> >> concrete before applying adhesive to the concrete (you will want to
> >> >> glue the board on to prevent air gaps between the insulation and th=
> >> >> foundation - this could create a convective heat loss when you are
> >> >> trying to prevent a conductive heat loss). =A0Make sure you compact=
the
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> >> >> soil when you back fill.
> >> >Actually;
> >> >Find a competent energy audit company in your county and have them do=
> >> >thermal image of the slab. =A0You'll find that likely there's either =
no edge
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> >> >insulation or at the very least you'll find heat leakage. =A0The ener=
gy audit
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> >> >will at it's very least give you suggestions on how to tighten up you=
r home
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> >> >and / or improve your HVAC as well as the pay-back timeline.
> >> >If you aren't really ready to inve$t any money here, then your family=
> >> >comfort is not that important to you. =A0If you don't like the answer=
to your
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> >> >question, I'm sorry....
> >> He's likely to wear out his dialing finger finding someone who has a
> >> thermal imaging camera. =A0Do you have any idea how expensive they are=
> >> Perhaps you could provide a number for him to call.
> >The fire co? =A0Mine does. yes $$$$ big bux. =A0But don't call for your =
heating
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> >system for this purpose, remember we also have axes... and know how to b=
reak
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> >things.
> Exactly. =A0The one I used cost over ten grand and you could see your
> footprints where you walked on the ground with it. =A0Pretty cool
> actually. =A0You can get some cheap pos that is all flash and no zoom
> but its like the difference between a TIF and a H-10. =A0Any company
> that has made that kind of investment isn't going to charge a few
> hundred bucks to use it.
I do this type of diagnosis/consulting with an IR imager on a regular
basis for $350 and there are a few others in my area who are about the
same price. If we don't have to write up a full report and you're just
looking for a problem-solving consultation, we keep the rates in that
range. If you need a comprehensive report on the whole house, then
yes, $550+ is the norm.
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> >Douglas S wrote:
> >> Let's step back a second - why is the air cold? Well the cold
> >> concrete is sucking the heat from the air.
> >> Why is the concrete cold? Lack of perimeter insulation around the
> >> slab.
> >> Check around the exterior of the slab for insulation board. If it is
> >> not there, you need to dig a 2 ft. deep trench around the slab and put
> >> 2" thick blue board around the slab. Make sure you clean off the
> >> concrete before applying adhesive to the concrete (you will want to
> >> glue the board on to prevent air gaps between the insulation and the
> >> foundation - this could create a convective heat loss when you are
> >> trying to prevent a conductive heat loss). Make sure you compact the
> >> soil when you back fill.
> >Actually;
> >Find a competent energy audit company in your county and have them do a
> >thermal image of the slab. You'll find that likely there's either no edge
> >insulation or at the very least you'll find heat leakage. The energy audit
> >will at it's very least give you suggestions on how to tighten up your home
> >and / or improve your HVAC as well as the pay-back timeline.
> >If you aren't really ready to inve$t any money here, then your family's
> >comfort is not that important to you. If you don't like the answer to your
> >question, I'm sorry....
>
> He's likely to wear out his dialing finger finding someone who has a
> thermal imaging camera. Do you have any idea how expensive they are?
> Perhaps you could provide a number for him to call.
>