Frequently Asked Questions

Q: What size are LOGIX forms?

A: LOGIX is available in 4″, 6″, and 8″ cavity widths. Our forms are 48″ long and 16″ high, with half height 8″ forms also available.

Q: Is LOGIX training available?

A: Yes. Logix offers contractor training through their regional technical and marketing offices. Go to for more info.

Q: Do I need a vapor or air barrier?

A: No. The combination of concrete and two layers of foam means that the LOGIX wall acts as a natural barrier against air and moisture.

Q: Why should I build my home with ICF?

A: Insulated Concrete Forms create homes and buildings that are more energy efficient, stronger, more sound resistant, and more environmentally sustainable than any other construction method.

Q: Are CFCs or HCFCs produced when LOGIX ICF is made?

A: No harmful CFCs or HCFCs or any other ozone depleting substance is let off during the production of LOGIX forms. You can rest easy in your LOGIX structure.

Q: How quiet are LOGIX ICF walls?

A: A LOGIX wall has a sound transmission classification of STC 50, which is twice as high as a typical wood-framed wall. Loud noises outside a LOGIX building will be reduced to a whisper inside the building.

Q: Why is ICF better than stick framing at dealing with rot and mold issues?

A: Over the last 20 years builders have been asked to build tighter and tighter homes with the use of poly, tape, caulking, gaskets and seals. When any one of these products is not installed perfectly moisture gets into the wall cavity, which can cause mold and mildew problems and rot. LOGIX solves all of these problems.

Q: What is the R-Value of LOGIX ICF?

A: The foam in LOGIX walls provides a thermal resistance rating of R-24. Due to the combined effects of this foam with the high thermal mass and reduced air infiltration of an insulated concrete wall, LOGIX walls can perform at significantly higher effective performance levels.

Q: Isn’t it hard to remodel an ICF home?

A: Most remodeling contractors have the ability to cut openings into an ICF wall. Most tool rental stores have concrete cutting saws for rent for cutting openings.

Q: How does LOGIX ICF fare with termites and other insects and even rodents?

A: EPS provides no food value for termites or rodents. Whether wood frame construction or ICFs, local building codes do require termite barriers in high termite areas. The same prevention measures used for wood frame construction can also be used for ICFs. The advantage with ICFs is that the termites can’t affect the structural integrity of the building since it is made of concrete.

Q: Why are LOGIX ICFs easier to build with?

A: LOGIX forms are the most builder friendly ICF forms on the market. Our thicker, more solid 2 3/4″ foam panels are standard on every form we make. This creates the strongest block available, better able to withstand normal jobsite handling and the pressures of concrete placement.

Q: How much rebar do I need?

A: This will be determined by the design parameters of the building, and in accordance with local building codes. LOGIX can provide tables that provide a guideline for most common applications. These can be found in our product manual which can be downloaded from this website.

Q: Do I need to waterproof my wall?

A: Waterproofing will be required below grade level. We generally use either a peel and stick bituminous membrane or a rigid “air gap” drainage board.

Q: Is LOGIX code approved?

A: Yes. Every major code body in North America, including ICC and CCMC, has approved LOGIX. See our Technical Library on this site for full details.

Q: Are LOGIX buildings safer than wood framed buildings?

A: Yes. LOGIX buildings are up to 8.5 times stronger than wood framed buildings. As a result, LOGIX walls are much better able to withstand severe weather such as hurricanes and tornadoes. LOGIX walls have a 3-hour fire rating as opposed to 15 minutes for a comparable wood framed wall.

Q: When are penetrations for mechanical and electrical cut in?

A: You can insert sleeves in the wall before you pour the wall to make it the easiest. Otherwise you can drill them in later.

Q: How is electrical wire run in the ICF wall?

A: You can use a chainsaw, router, or a circular skill saw to cut lines into the wall. Then you just glue the electrical wire into the routered out space.

Q: What kind of exterior finish can go on the ICF Wall?

A: Any traditional finish can go on. Brick, Stone, Stucco and siding. With plastic ties every 8″ to screw to, there is a lot of backing to hang your finish on.

Q: What kind of interior finish is accepted in the ICF wall?

A: Any traditional finish can go on. With plastic ties every 8″ to screw to, there is a lot of backing to hang your finish on.