One of the most important decisions you will make in building your house
will be determining your foundation.
Piers: the least expensive of foundation options, usually employed when a basement is undesirable or impractical.
Block foundation: Relatively inexpensive but also requires framing interior basement walls for insulation. Not a premium foundation but a very common one and if done properly will provide a sound foundation.
Pressure Treated Wood (PTW) Structural Insulated Panels (SIP)
Pressure Treated Wood and Structural Insulated Panels: Newer options in Eastern Canada, and more expensive than piers or block. If installed correctly, these options will provide an excellent foundation with greater R value. Does not require framing interior basement walls for insulation.
Poured Concrete: also an excellent foundation. Again a little more expensive, and requires framing interior basement walls for insulation.
Insulated Concrete Forms (ICF)
ICF: the premium foundation and the most expensive option. Insulated Concrete Forms have gained popularity as they are extremely thermal and provide superior R value. They do not require framing interior basement walls for insulation but a wall covering must be installed before occupancy.