R80 Attic Insulation

The pitch was that the r value at the time of construction was sufficient but that codes have been revised and more.

R80 attic insulation.

Recommended inches of cellulose attic insulation. Use this master flow r 8 0 60 sq. Both can be added to uninsulated attics or layered over existing material. Once you ve decided which type is best for you examine the material options and prices to home in on the right product.

Attic existing 3 4 inches of insulation uninsulated floor uninsulated wood frame wall insulated wood frame wall 1 r30 to r49 r25 to r30 r13 2 r30 to r60 r25 to r38 r13 to r19 n a 3 r30 to r60 r25 to r38 r19 to r25 and add r5 insulative wall sheathing beneath the new siding. If you gave it the full 18 of cellulose on day 1 the settled depth over time would be about 16. Loose fill or batt the common term for blanket insulation. Higher r attic insulation is generally a cheaper performance upgrade than many most and an r60 attic will have half the heat gain loss of a current code min r30 and you ll probably be able to feel the difference at 2pm on that 100f day in july.

If the walls are uninsulated r80 in the attic is a complete waste of investment. For diy attic insulation you ve got two choices. The trick to insulation is not to maximize in one location but to have an even level everywhere. Wraps around new or existing ductwork.

It will also help to absorb noise from your ducting system. Covers up to 60 sq. If you live in northern canada and have 5 8 on 16 centers go with r80. Use of this duct warp should help improve temperature efficiency of your duct system.

Recently door to door sales representatives for an insulation company offered a free inspection and quote to add additional insulation. Loose fill cellulose insulation is composed of pulverized paper and fabric material treated with a flame retardant. Of duct surface measures 2 ft. I have a 6 year old home with about 12 inches r 30 of blown in insulation in the attic.

Duct warp insulation to reduce condensation in your duct system.