“Major power outage in North Idaho. We had no heating for 9 hours yesterday - It was 50 MPH wind all day, partly sunny, 41 degrees. Guess how the temperature in our Faswall building changed?  House did not change, garage dropped from 65 to 63. We opened the door to drive the car out and also opened the person door several times.
Needless to say:     WE LOVE OUR FASWALL STRUCTURE!!!
Also, with the 50 MPH winds, gusting to 70 MPH, our building was stable and quiet inside. We were able to sleep, work, etc.”

Nathan MacPherson in N Idaho


Builder Mark Maricle

provides background information on characteristics of a Faswall home being built in the Boulder Colorado area

Montana Builder and Faswall Block

Builder Mark Maricle

explains the concept of thermal mass through a quick tour of a Bouder CO home under construction

Home Owners and Builders

“We did a lot of research on various green building systems but settled on Faswall. Not only did it seem like the “greenest” technology, but the ease of building compared to other systems seemed like a good choice for an owner/builder. What we didn’t expect, but were totally delighted with, was how knowledgable and helpful the people at Faswall were. We couldn’t have done it without you!”

-Ted and Donna Havecheck

You’d be surprised at the various types of homes and commercial buildings that can be built with Faswall. Check out some of the recent projects..
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What is Faswall ICF Block System


Faswall® is a building system similar to Insulated Concrete From (ICF) Blocks.  But unlike ICFs, Faswall is a non-toxic, healthy building system made with Recycled Materials with a 25-year track record for innovative builders.

Insulated Wood-Chip Cement Blocks with High R-Values

Our wall form system is exceptionally:

  • healthy
  • durable
  • thermally insulating

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Request Your Free Download "Get Started" Package:
includes: Design ideas, Product Data Sheet, Block Pricing, Technical and Installation Info, Engineering Details
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These Folks Can Help You Build with Faswall®