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Cellulose density ?
What I am reading from US DOE says to use:
1.5 to 2.0 lbs/cubic foot for walls and vertical cavities using low perm paint of interior side of wall with no structural ADR or VDR
3.5 – 3.7 lbs/cubic foot for cathedral ceilings and rafter bays with low perm latex paint on drywall and no structural VDR or ADR
Here are my questions:
Will the lower density cellulose do the job of moisture and air diffusion and convection control or is the higher density needed to get this performance in a ADA or SimpleCX approach (no structural VDR/ADR) ?
Does it matter if the cellulose at low density is a dry packing manually put in place or does it have to blown in ?
Is there a significant improvement of retention of the air and moisture sealing and the cell’s loft if a wet sprayed (adhesive added) is used ?
Will ½ ” drywall 24 OC be strong enough to hold up the weight of cell; low density cell or high density cell.
tedd
Replies
*
Cellulose density ?
What I am reading from US DOE says to use:
1.5 to 2.0 lbs/cubic foot for walls and vertical cavities using low perm paint of interior side of wall with no structural ADR or VDR
3.5 - 3.7 lbs/cubic foot for cathedral ceilings and rafter bays with low perm latex paint on drywall and no structural VDR or ADR
Here are my questions:
Will the lower density cellulose do the job of moisture and air diffusion and convection control or is the higher density needed to get this performance in a ADA or SimpleCX approach (no structural VDR/ADR) ?
Does it matter if the cellulose at low density is a dry packing manually put in place or does it have to blown in ?
Is there a significant improvement of retention of the air and moisture sealing and the cell’s loft if a wet sprayed (adhesive added) is used ?
Will ½ " drywall 24 OC be strong enough to hold up the weight of cell; low density cell or high density cell.
tedd