SIPs (Structural Insulated Panels) and ICF (Insulated Concrete Forms) are two distinctly different building systems. There are also some distinct differences in assembly time and costs.
SIPS:
- require 3-6 weeks order and processing time
- assemble quickly (days)
- provide good sound R-values (6.5" Thk = R22 / 8.5" Thk = R28 / 10.25" Thk = R35 / 12.25" Thk = R46)
- can use SIPs to create the entire exterior shell structure (walls, roof and floor)
ICF:
- shorter lead time (many companies hold stock)
- assembled onsite and ready to pour concrete in days
- overall cost of this system is higher than SIPs
- true R-value is equal only the the R-value provided by the EPS foam (R-value of concrete is extremely low)
- rate of heat energy transfer through completed ICF wall is impeded by the concrete and therefor provides some energy efficiencies
- can only complete the walls (and foundation walls) with ICF; must create roof with other system
If anyone has anything to add to this...your comments are welcome.
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