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-   -   Insulate or Don't Insulate? (http://www.diychatroom.com/f19/insulate-dont-insulate-19205/)

helpless handyman 03-29-2008 09:37 PM

Insulate or Don't Insulate?
 
I am starting to finish my basement, I am wondering if I should insulate the ceiling? The floor above seems to get cold at times, and it's hardwood floors.
Thanks:thumbsup:

mark942 03-30-2008 06:34 AM

Just finished mine.Warm toes on the 1st floor and she loves it.Just remember not to cover up or better yet move those important accesses. :whistling2:

helpless handyman 03-30-2008 08:37 AM

Hey Mark, so did you insulate the ceiling? Thanks

AtlanticWBConst. 03-30-2008 08:41 AM

Quote:

Originally Posted by helpless handyman (Post 112040)
I am starting to finish my basement, I am wondering if I should insulate the ceiling? The floor above seems to get cold at times, and it's hardwood floors.
Thanks:thumbsup:

If you have a non-insulated basement, then you should consider insulating the area of those first floor joists (basement ceiling).

helpless handyman 03-30-2008 07:39 PM

Thanks Atlantic, so otherwise if I insulate the side walls, you are saying I won't have to insulate the basement ceiling? Is this correct? Thanks, what to make sure. Thanks Again Atlantic:thumbsup:

mark942 03-31-2008 05:39 AM

Insulated the entire basement.Walls/ceiling every nook and cranny.....With all that I had to also install a heat source flooring ect ect ect.

But I always over kill.A guy/gal could just insulate the rim joist area,and maybe one row out from there.I am thinking that is what Atlantic is saying...........................

AtlanticWBConst. 03-31-2008 07:25 AM

Quote:

Originally Posted by helpless handyman (Post 112315)
Thanks Atlantic, so otherwise if I insulate the side walls, you are saying I won't have to insulate the basement ceiling? Is this correct? Thanks, what to make sure. Thanks Again Atlantic:thumbsup:

Once you insulate the basement walls, you then make that basement ceiling area, part of the thermal envelope. Thus, it is part of the conditioned environment of the home, and does not rquire insulation.
Just make sure that you insulate the basement joist bay areas above the mudsills. They are esentially, part of the walls (in terms of the thermal envelope).

beer_geek 03-31-2008 12:37 PM

You may want to insulate the ceiling for sound.

amakarevic 03-31-2008 04:18 PM

what is a thermal envelope ?

AtlanticWBConst. 03-31-2008 05:27 PM

Quote:

Originally Posted by amakarevic (Post 112608)
what is a thermal envelope ?

The Thermal Envelope
A "thermal envelope" is everything about the house that serves to shield the living space from the outdoors. It includes the wall and roof assemblies, insulation, windows, doors, finishes, weather-stripping, and air/vapor retarders... -http://www.pueblo.gsa.gov/cic_text/h...ff/energy.html

helpless handyman 03-31-2008 07:07 PM

I am framing my walls about 2 inc away from the concrete walls. The basement walls are about 4 ft high, then they go in about 2 inc then up again another 3 1/2 feet. The walls are sort of an l shape, I was thinking maybe if I insulate the ceiling, it will make the above floor feel much warmer?

Thanks Guys, Thanks Atlantic:thumbsup:


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