FAQ

HOMEOWNER FAQ

How much insulation do I need?

The amount of insulation you need depends on the R-value desired, your climate, type of heating and cooling system, and

the section of the house you plan to insulate. For the recommended levels of insulation, the Department of Energy publishes

the following chart with the R-values they recommend.

To determine the amount of existing insulation you have, refer to the following chart from the Department of Energy found on

their web site, http://www.energystar.gov

ADD INSULATION TO ATTIC

Unisulated Attic Existing 3-4 Inches

of Insulation

R30 to R49 R25 to R30

R30 to R60 R25 to R38

R38 to R60 R38

R49 to R60 R38 to R49

ZONE

5 to 8

FLOOR

R13

R13 to R19

R19 to R25

R25 to R30

Wall Insulation: Whenever exterior

siding is removed on an UNINSULATED

ood-frame wall:

• Drill holes in the sheathing and blow

insulation into the empty wall cavity

before installing the new siding, and

• Zones 3-4: Add R5 insulative wall

sheathing beneath the new siding

• Zones 5-8: Add R5 to R6 insulative

wall sheathing beneath the new siding

INSULATED w

ood-frame wall:

• For Zones 4 to 8: Add R5 insulative

sheathing before installing the

new siding

PM-6.3-187 Rev

F 07/13 page 1

PAGE 1
HOMEOWNER FAQ How much insulation do I need? The amount of insulation you need depends on the R-value desired, your climate, type of heating and cooling system, and the section of the house you plan to insulate. For the recommended levels of insulation, the Department of Energy publishes the following chart with the R-values they recommend. To determine the amount of existing insulation you have, refer to the following chart from the Department of Energy found on their web site, http://www.energystar.
PAGE 2
HOMEOWNER FAQ What is the cost for use of the blowing machine? GreenFiber recommends the free use of the insulation blowing machine with a minimum bag purchase, subject to store policy. What is GreenFiber Insulation made from? GreenFiber Insulation is a natural fiber cellulose insulation that consists of 85% recycled paper, mostly recovered, from post-consumer paper fiber that contains additives for fire resistance.
PAGE 3
HOMEOWNER FAQ Can GreenFiber Insulation be installed over existing insulation? Yes, GreenFiber Insulation is ideally suited to providing additional R-value over existing attic insulation, as it completely fills voids and gaps left open by other forms of insulation. GreenFiber Insulation can also be installed in existing uninsulated exterior walls through various methods. Is GreenFiber Insulation hard for a homeowner to install? GreenFiber Insulation is easy for homeowners to install.