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Best Floor Insulation? RO 04-03-2008
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Posted by S. Barker on April 3, 2008, 1:16 pm
Some would not consider where i live a cold climate. It's probably not
compared to other parts of the country. I live in kansas near the mo state
line south of KC. It's more than cold enough for me. I hate cold.

s

>
> You clearly don't live in a cold climate, do you? 'Pays back' is
> meaningless, an ice-cold floor in winter is not. But, even still it
> will pay back, just as any reasonable insulation job will do.
>
>
>>>
>>> That is not true. Hot air rises due to convection but heat radiates
>>> in all directions.
>>>
>>> R
>>



Posted by Roscoe P Pendoscoe on April 3, 2008, 7:08 pm

>When I built my house I insulated the the floor with R19 fiberglass batts.
>Rodents have - over the years - torn must of it down. I want to insulate
>once more and never again after that. What would be a better way to go?
>My floor joists are 2x10's.
>
>Thanks,
>RO

Well them must be some active little devils to tear down fiberglass.
The first thing I personally would do is seal up all the access those
creatures have found to get in.

They do not like steel wool. Use that when you plug crevices/holes
then good sealant.

Are they interested in any edibles other than insulation?





Knowledge is like money, the less you talk about it
the more people assume you have.

Posted by Andy Energy on April 5, 2008, 12:25 am
> When I built my house I insulated the the floor with R19 fiberglass batts.
> Rodents have - over the years - torn must of it down. I want to insulate
> once more and never again after that. What would be a better way to go?
> My floor joists are 2x10's.
>
> Thanks,
> RO
>
> --
> Robert Olin
> Bob's Water & Septic LLC
> jo...@whidbey.net

Heat travels in three ways:

1)        Conduction
a.        Providing the conductivity and temperature difference is the same
the amount of heat will travel equally in all directions. Up, down,
sideways or any other direction in between
2)        Convection
a.        This is raising the temperature of a fluid (air is a fluid). As
the fluid it heated the molecules get further apart and thus making it
less dense. As a result it rises. Ie. Heat does NOT rise, only the
fluid it heats.
3)        Radiation
a.        Radiation will travel in all directions equally when the surface
properties (Texture, emissivity, and temperature) are equal.

More than most would want to know about heat transfer
http://en.wikipedia.org/wiki/Heat_transfer

As for the insulation and rodents. The first line of defense is get
rid of the rodents. Find the holes and plug them. I understand they
do not like copper mesh (no experience in this). 1/4 inch hard ware
cloth will stop most rats and mice. A roof rat can get in through a
hole the size of a quarter and mouse the size of a dime.

I've not seen an insulation a rodent will not chew through with the
exception of vermiculite or Perlite. Good luck holding these in
place. There is a 1" vacuum panel used in refrigerators. I can only
assume they would not fit and be very expensive.

So this brings us back to go after the rodents. If you cannot find
their entry point go to your favorite pet store and get a UV light.
IT is use to show fresh urine and since rodents (mice and rats)
urinate everywhere the travel you should be able to track down their
entry points as well as determine if you have gotten the holes
plugged. Fresh urine glows under a uv light.

Page 5 of 5       << first < 1 2 3
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