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Insulation Measurment - Funny Math Carbon Fiber Composite Expert 10-08-2008
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Posted by on October 8, 2008, 11:05 am


I need to insulate 900 sqft of space. When I look at R-30 batts from
home depot they are marked 53.3 sqft. The actual measurment is
10"x16"x48". Unless my math has failed me the measurment for sqft is
lengthxwidth. If you do the math for the HD R-30 insulation it comes
out to 5.3 sqft - 16"x48"=768sq inches, 768/144=5.33 sqft. It would
appear that what is shown on the bag is cubic feet, not sqft. So my
questin is this; how many batts to insulate a 900 sqft area, 16.8 or
168.8?

These are the batts here:
http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10051&langId=-1&catalogId=10053&productId=100317742&N=10000003+90029+527411

Posted by ransley on October 8, 2008, 11:23 am


On Oct 8, 10:05=A0am, Carbon Fiber Composite Expert wrote:
> I need to insulate 900 sqft of space. When I look at R-30 batts from
> home depot they are marked 53.3 sqft. The actual measurment is
> 10"x16"x48". Unless my math has failed me the measurment for sqft is
> lengthxwidth. If you do the math for the HD R-30 insulation it comes
> out to 5.3 sqft - 16"x48"=3D768sq inches, 768/144=3D5.33 sqft. It would
> appear that what is shown on the bag is cubic feet, not sqft. So my
> questin is this; how many batts to insulate a 900 sqft area, 16.8 or
> 168.8?
>
> These are the batts here:http://www.homedepot.com/webapp/wcs/stores/servl=
et/ProductDisplay?sto...

Read the bag, there are 10 - 5.3 sq ft batts in that bag.

Posted by on October 8, 2008, 11:29 am


On Wed, 8 Oct 2008 08:23:59 -0700 (PDT), ransley

>On Oct 8, 10:05 am, Carbon Fiber Composite Expert wrote:
>> I need to insulate 900 sqft of space. When I look at R-30 batts from
>> home depot they are marked 53.3 sqft. The actual measurment is
>> 10"x16"x48". Unless my math has failed me the measurment for sqft is
>> lengthxwidth. If you do the math for the HD R-30 insulation it comes
>> out to 5.3 sqft - 16"x48"=768sq inches, 768/144=5.33 sqft. It would
>> appear that what is shown on the bag is cubic feet, not sqft. So my
>> questin is this; how many batts to insulate a 900 sqft area, 16.8 or
>> 168.8?
>>
>> These are the batts
here:http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?sto...
>
>Read the bag, there are 10 - 5.3 sq ft batts in that bag.

Doh and double doh!!!!

Posted by Norminn on October 8, 2008, 1:19 pm


Carbon Fiber Composit Expert wrote:

>On Wed, 8 Oct 2008 08:23:59 -0700 (PDT), ransley
>
>
>
>>On Oct 8, 10:05 am, Carbon Fiber Composite Expert wrote:
>>
>>
>>>I need to insulate 900 sqft of space. When I look at R-30 batts from
>>>home depot they are marked 53.3 sqft. The actual measurment is
>>>10"x16"x48". Unless my math has failed me the measurment for sqft is
>>>lengthxwidth. If you do the math for the HD R-30 insulation it comes
>>>out to 5.3 sqft - 16"x48"=768sq inches, 768/144=5.33 sqft. It would
>>>appear that what is shown on the bag is cubic feet, not sqft. So my
>>>questin is this; how many batts to insulate a 900 sqft area, 16.8 or
>>>168.8?
>>>
>>>These are the batts
here:http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?sto...
>>>
>>>
>>Read the bag, there are 10 - 5.3 sq ft batts in that bag.
>>
>>
>
>Doh and double doh!!!!
>
>
Blame it on your bifocals :o)

Posted by Smitty Two on October 8, 2008, 11:43 am


Carbon Fiber Composite Expert wrote:

> I need to insulate 900 sqft of space. When I look at R-30 batts from
> home depot they are marked 53.3 sqft. The actual measurment is
> 10"x16"x48". Unless my math has failed me the measurment for sqft is
> lengthxwidth. If you do the math for the HD R-30 insulation it comes
> out to 5.3 sqft - 16"x48"=768sq inches, 768/144=5.33 sqft. It would
> appear that what is shown on the bag is cubic feet, not sqft. So my
> questin is this; how many batts to insulate a 900 sqft area, 16.8 or
> 168.8?
>


Uh, 10 in a package, in this case.

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