Insulation (cont. p. 5)

 

Attic Insulation

Your choices are again: batts, loose-fill, or spray foam.  Your R-value requirements are much greater in an attic than in walls.

 

 

 

The same advantages and disadvantages of each of these types for wall insulation, also apply to the attic.


Again your choice will be based on initial cost versus probable long-term savings on heating and air conditioning costs.


Superior density and compaction increase the R-value, which makes the difference.
   Spray foam

 

On my last few houses, I have used wet-blown cellulose in walls and dry-blown cellulose in the attic.

I know builders still using batts in walls because of the installation cost savings.

But then, those builders aren’t worried about utility bills, either.

I know of no builder currently using batts in attics, but there probably are some who are doing everything they can to save money.

   Blown cellulose.  Note depth of ten inches.

 

 

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