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Where can I buy R-38 Fiberglass insulation that is 6.5 inches thick?

Where can I buy R-38 Fiberglass insulation that is 6.5 inches thick?


  #1  
Old 12-23-19, 08:06 PM
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Where can I buy R-38 Fiberglass insulation that is 6.5 inches thick?

I read in a do it yourself article that R-38 fiberglass insulation is available 6.5 inches thick. I need it for a cathedral ceiling and I can not find anyone who sells it. Thank you.
 
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Old 12-23-19, 08:12 PM
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are your joists 16" on center or 24"? And where are you located?
 
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Old 12-23-19, 08:13 PM
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joists are 24 on center, Tennessee
 
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Old 12-23-19, 08:14 PM
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The Home Depots around here stock it. It may be special order at some stores.
 
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Old 12-23-19, 08:16 PM
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Where do you live? My Home Depot and Lowes look at me like I'm nuts, they say they've never heard of it. All we have is the cellulose that is 12 inches. Thx
 
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Old 12-23-19, 08:17 PM
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Nebraska.

https://www.homedepot.com/s/R38?NCNI-5

Use their websites and set your local store so that it will search their inventory. Search for R38. Then see if it's in stock or special order.

The employees in big boxes are not always the sharpest tools in the shed.
 
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Old 12-23-19, 08:41 PM
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Thank you! Happy Holidays.
 
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Old 12-24-19, 03:54 AM
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I have never heard of R38 in anything that thin but the link XS provided only had one, cathedral ceiling insulation but it was still 9.5" thick!

Did I miss it!
 
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Old 12-24-19, 04:20 AM
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Oh... You are concerned about the thickness?

If you are going by this diy article, it has the facts wrong.

https://www.doityourself.com/stry/ho...-38-insulation

R38 fiberglass is not 6.5" thick. A lot of the time, those articles are not written by professionals that are actually in the trade. I'll report that one.
 
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Old 12-24-19, 09:30 AM
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Thank you for the clarification.
 
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Old 12-24-19, 01:06 PM
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The only way you can get an R38 that is 6.5" thick is using foam.
 
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Old 12-24-19, 10:16 PM
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If you describe your application maybe we can help further.
Cathedral ceilings also have ventilation issues, how deep are your rafters?

Bud
 
 

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