Construction of a Insulated Concrete Form (ICF)-walled

Home in Central Virginia

Typical Corner Form

Spacer

For attaching interior wall treatment, e.g., drywall

With Forms for Two Walls of Basement in Position

With Forms for Two Walls of Basement in Position

Note Spacers Between Inner and Outer Forms.

Note Spacers Between Inner and Outer Forms.

The Blue Bracing Gets Returned to the Manufacturer Once the Concrete Has Set.

The Blue Bracing Gets Returned to the Manufacturer Once the Concrete Has Set.

With Vertical “Rebar” in Place. The Plastic Spacers Keep Rebar In Position Until Concrete Has Set.

With Vertical “Rebar” in Place. The Plastic Spacers Keep Rebar In Position Until Concrete Has Set.

Pumping the Concrete Into the Gap between the Foam Forms.

Pumping the Concrete Into the Gap between the Foam Forms.

With Concrete Nearly Filling the Gap

With Concrete Nearly Filling the Gap

Interior Wall Construction is Conventional 2x4

Interior Wall Construction is Conventional 2x4

With Waterproofing on Areas That Will Be Below Grade

With Waterproofing on Areas That Will Be Below Grade

With Siding and Stone Veneer

With Siding and Stone Veneer

Kitchen Cabinets in Place. Note the Deep Window Sills

Kitchen Cabinets in Place. Note the Deep Window Sills

Nearly Completed Home

Nearly Completed Home

24-Hour Simulation of an ICF Wall

ICF Wall - Temperatures Profiles with Time

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80

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25

Position within Wall

Tem

pe

ratu

re (

oC

)

Styrofoam Concrete Styrofoam

1 2 3 6 7 19 20 24 25

hout , T solair h in, T air

Note that the Styrofoam on the Outside Follows the Diurnal Cycle Very Closely (It Has Good Thermal Resistance, but Little Thermal Mass), but the Concrete, which has High Thermal Mass (But Little Resistance), Barely Responds.

Note that the Styrofoam on the Outside Follows the Diurnal Cycle Very Closely (It Has Good Thermal Resistance, but Little Thermal Mass), but the Concrete, which has High Thermal Mass (But Little Resistance), Barely Responds.