DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Insulation and Radiant Barriers > How do I know if my basement is insulated?




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Old 04-21-2014, 10:27 AM  
InTooDeep
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Default How do I know if my basement is insulated?

I bought a house with a finished basement. Its always cold there. And gets colder the further away from the furnace. Before I start any attempt to fix it I want to know if the problem is the low or lack of insulation. Is there a way to know this without ripping down the drywall?



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Old 04-21-2014, 11:51 AM  
Wuzzat?
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With a thermistor or thermocouple you'd first need to know the basement air temperature, the outside basement wall surface/ground temperature and the temperature of the inside basement wall surface.

http://www.webstaurantstore.com/tayl...FYMcOgodWAkADA

I'd crumple up tin foil around the probe end to make better thermal contact with rough surfaces.
Then it's working backward from the thermal conductivity of your wall to what it might be made of, using formulas and tables.

If the air temperature says you should be warm but you're not, the walls may cold and so you lose body heat by radiation, the other two mechanisms of heat loss being conduction and convection.

You could spend a lump sum for insulation plus labor or
pay a monthly charge for a room heater or
use a fan or furnace plenum vent to put warm house air into the basement.



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Old 04-21-2014, 12:27 PM  
CallMeVilla
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Well, we all have ways of looking at problems. I would rent a thermal imaging camera and check the walls for cold and hot spots. You can "see" through the walls and detect the lack of insulation, particularly in corners and ceiling junctions. Compare the readings against the upstairs walls to see if there is a big difference.

You will quickly determine exactly where your biggest problems are ... then map a strategy for fixing it.

http://www.amazon.com/DEWALT-DCT416S...431797-2223544

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Old 04-21-2014, 01:08 PM  
nealtw
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Just cut a hole in the drywall carefully so it can be replaced and inspect what you have.

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Old 04-21-2014, 02:07 PM  
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I'm with nealtw on this one. Just punch a couple of holes . It's easy and cheap to patch.

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Old 04-21-2014, 03:40 PM  
CallMeVilla
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Simple enough for us ... but In2Deep seems to be new to this and punching holes can be daunting. I think a thermal scan is easier, faster, less intrusive, AND it can reveal a lot more information than a hole or two.

SCAN.jpg  
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Old 04-21-2014, 04:55 PM  
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Quote:
Originally Posted by CallMeVilla View Post
Simple enough for us ... but In2Deep seems to be new to this and punching holes can be daunting. I think a thermal scan is easier, faster, less intrusive, AND it can reveal a lot more information than a hole or two.
In the image, is the insulation missing in the red zone because it's hot outside or the blue zone because it's cold?

Have you pointed this thing at women?
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Old 04-21-2014, 09:11 PM  
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This is STRICTLY in the interests of demonstrating the ability of the infrared camera to distinguish shades of temperature accuracy ... if you choose to see it as anything else, it will be between you and your spouse.

IMAGE Thermal.jpg  
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Old 04-21-2014, 11:02 PM  
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Any diyer either knows how to patch drywall or has to learn, what better place than in a closet or somesuch in a basement.
Villa: nice picture, now is she nude or wearing a silk shirt, there are just so many things that camara will tell you. Everytime I have seen them used it is immediatly followed up with cutting holes in walls.

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Old 04-22-2014, 01:27 AM  
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Hole cutting after a thermal scan is the obvious next step. What the scan tells you is WHERE to cut and also WHY to cut.

Sorry to disappoint you ... This is a pic of Wuzzat after a day at the beach.



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