Welcome to the DoItYourself Forums!

To post questions, help other DIYers and reduce advertising (like the one on your left), join our DIY community. It's free!

Matted insulation


artschwartz's Avatar
Visiting Guest

Posts: n/a

12-06-02, 07:08 AM   #1  
artschwartz
Matted insulation

My attic has blown in fiberglass insulation. It appears that the insulation has matted down. From what I have read this also means that the insulation is no longer as efficient as it used to be because the trapped air spaces have been reduced.

Since the insulation is blown in is there a method to "refluff" the insulation? Or should I replace it?

Art Schwartz

 
Sponsored Links
twelvepole's Avatar
Member

Join Date: Aug 2000
Posts: 15,834
OH

12-06-02, 07:31 AM   #2  
Matted insulation

Never compress or fluff your insulation. Even if it asks you to... "Fluff me... fluff me now!" But remember R-values? They are computed with the insulation in its "natural state". For example, fiberglass batts will expand after a batt is unrolled. Blown or poured cellulose will tend to settle over time. These events have been been taken into account in computing their R-values. If anything, squeezing or fluffing it will decrease their R-values... not a good thing!

I'VE GOT YOUR LOVE TO KEEP ME WARM... BUT EXTRA INSULATION SURE HELPS!
Let The Natural Handyman Help Insulate You From The Colder Facts Of Life
The Natural Handyman
Retrieved 06 December 2002
http://www.naturalhandyman.com/iip/i.../infinsul.shtm

 
Search this Thread