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Old 05-18-2010, 01:09 AM   #1
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Code for insulation


I've got a copy of the book "Code Check" indicates R-6 insulation in floor trusses, R-8 elsewhere with EXC, and lists that the code is 1103.3 of 09 IRC and 605.0 of 09 UMC. But I can't find copies of the 09 codes to get details (only 06 at bulk resource).

Can someone fill me in on the details.

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Old 05-18-2010, 02:50 AM   #2
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Code for insulation


Good question. At times a code requirement will be written and included in the latest code book but a city might not get around to adopting the new code book for several years.

The codes you mentioned are in print but not too many are around because none are going to be adopted for a couple years.

My own city is working from a code adopted in 2006

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Old 05-18-2010, 08:30 AM   #3
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Code for insulation


Our city adopted 2009 requirements in January... if I would have submitted my building permit just a little earlier, I'd be under the 2006 rules. But because I couldn't get my plans together before February, I'm under the 2009 rules.
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Old 05-18-2010, 08:51 AM   #4
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Code for insulation


Here we have to have an energy audit before we can even apply for a permit
I generally pass by 25% (or more) what is required for insulation
I'd rather pay more for insulation then pay more long term in heating costs
R13 walls - I use R19 or may possibly use R22
I think R30 is min for roof, I use R38 or better
Floor over the garage I will be using R30 or R38
I'm even insulating the unheated garage walls w/R19
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Old 05-18-2010, 11:12 AM   #5
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Code for insulation


Quote:
Originally Posted by Scuba_Dave View Post
Here we have to have an energy audit before we can even apply for a permit
I generally pass by 25% (or more) what is required for insulation
I'd rather pay more for insulation then pay more long term in heating costs
R13 walls - I use R19 or may possibly use R22
I think R30 is min for roof, I use R38 or better
Floor over the garage I will be using R30 or R38
I'm even insulating the unheated garage walls w/R19
Sorry for not being specific enough...

I'm looking for what the code says (specifically the exceptions) regarding insulation for HVAC ducts. The 2009 codes increased the required R Value. I have "Code Check", but it only gives the highlights, not the details.
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