Commonly used
methods
Method 1:
Line up exteriors of the walls and reduce interior
dimensions slightly
Method 2: Line
up interiors of the walls and increase exterior dimensions slightly
Method 3: Line up centers of the walls and let wall
encroach a little to both inside and outside.
Comments:
Peter Juen-
SE Florida Polysteel Inc.
Phone: 561-225-5404
Email: seflpolyst@aol.com
In Florida, we have a lot of concrete block houses. For overlaying
ICFs over existing plans for concrete block walls, the same methods
as frame apply.
Pieter VanderWerf- Building
Works
Email: pvander@buildingworks.com
I recommend lining up the interior sides of the walls and
letting the exterior dimensions of the ICF building be a little
bigger. Reason #1: You don't have to change any of the interior
dimenisons so there's a lot less change work to do on the plans.
Reason #2: this preserves the interior space, which is important
to buyers and often has already been promised at a specific square
footage.
Lud - Tricom
Construction
Email: ladell@rcslv.com
Another plus for ICF's- you
can attach thinner wallboard(1/2" instead of 5/8") The
form backing offers the strength, which is more than what 5/8"
offers on a stick wall.
Joe Villeneuve -
Concepts in Design
Email: joe@conceptsindesign.com
I recommend a form of Method 3. The reason I
use this method is because it allows me to minimize waste of the
forms. Since most forms can be layed out using a 48" grid (from
outside of forms) and it is rare to find conventional construction
using this same grid (although they should too), I can adjust
the exterior walls to get as close as I can to a 48" grid ...
and reduce waste.
