21st Century Homes, Inc.
Insulated Concrete Forms (ICFs)
Insulated Concrete Forms (ICFs) are used in constructing the foundation of your super-insulated home. The Greenblock design we use originated in Europe over 40 years ago and consists of Lego-Type interlocking polystyrene blocks that hold the poured concrete in place. These blocks stay in place, giving you 2 5/8” of rigid foam insulation on each side of your foundation walls. That’s a total of 5 ¼ inches of foam insulating your basement walls or crawl space!
The thermal resistance of the foam alone is an R-24. Coupled with the thermal mass characteristics of concrete, as well as the absence of air infiltration, this system provides a wall system comparable to that of an R-50 wood-framed wall.
Finishing the walls of your basement is easy. Drywall can be screwed directly into the Web-Ties that are built into the ICFs, located every 6” on center.
Upcoming FREE Seminars
Periodically, 21st Century Homes holds free seminars at which you can learn about our energy-saving home packages and how they are revolutionizing the home building business.
Intesrested in attending? Just contact us and we'll notify you when we're coming to your area or even set up a free personal consultation!