The Short Answer
ICF construction takes approximately the same time as wood frame—and sometimes less. While the wall phase is slightly different, overall project timelines are comparable.
Phase-by-Phase Timeline
Pre-Construction (4-8 weeks):
- Design and engineering
- Permitting
- Site preparation
Same as wood frame
Foundation (2-3 weeks):
- Excavation and footings
- Foundation walls (often ICF)
- Slab or basement floor
Similar to wood frame, may be slightly longer for ICF foundation walls
Walls (2-4 weeks):
- ICF form stacking and bracing
- Window/door bucks
- Concrete pour and cure
Slightly longer than framing, but walls are complete and insulated in one step
Roof (2-3 weeks):
- Roof framing or trusses
- Sheathing and roofing
Same as wood frame
Time Savings: ICF eliminates several steps required in wood frame: exterior sheathing, house wrap, separate insulation installation. These savings often offset the slightly longer wall phase.
MEP Rough-In (3-4 weeks):
- Electrical, plumbing, HVAC
Similar to wood frame—utilities run in interior walls and chases
Finishes (6-10 weeks):
- Drywall, paint, flooring
- Cabinets, fixtures, trim
Same as wood frame
Total Timeline
A typical custom ICF home: 6-10 months from permit to move-in, depending on size and complexity. This is comparable to quality wood frame construction.
Weather Advantages
ICF construction can actually be faster in some conditions:
- Once walls are poured, interior work can proceed regardless of weather
- No waiting for multiple material deliveries (framing, sheathing, house wrap, insulation)
- Concrete can be poured in a wider range of temperatures than commonly believed
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