Building with ICF House Plans

I have had inquiries about Insulated Concrete Form (ICF) construction. What is ICF? Should I consider ICF house plans for my new home? Those who have read my profile know that for more than 20 years I have designed and built using solid construction systems. I did so because I believe solid construction methodology is superior in every way to conventional composition construction as in framed construction. It is important when planning to design and build a house for your next home to take into consideration that when you clear a lot and build a structure you permanently change the ecosystem that was there. Pinpoint your home’s ideal location on the property. Assess which trees to preserve and plan how to repurpose any timber you must clear. This strategic approach ensures optimal site utilization and minimizes ecological impact. Next, instead of just orienting your house to the street, consider orienting your house to the sun to take advantage of passive or active solar energy to heat and cool your home. Survey your site for materials that complement your habitat. Look for stone or timber you can incorporate. Blend these elements seamlessly into your design. Consider how each resource enhances your plan. Integrate local materials to create a harmonious living space. Is there water on your site? Is your lot large enough to use convection ground tubes or bore wells for geothermal heating and cooling?  These are just a few of the things you should peruse when finalizing and implementing a plan for the construction of your next home. My point is your primary concern should be to reduce as much as possible your impact on the environment. Now this brings me back to solid construction and the use of Insulated Concrete forms (ICF). Most of my experience has been in specializing in using a hybrid approach to designing and building a solid concrete house. I recommend using ICF as the best system for construction below ground level either in a basement or in an earth bermed house. For above grade I prefer using Autoclaved Aerated Concrete (AAC), which I will address in a future blog. There are at least a dozen companies which have their own patented insulated forms. What is common to all of them is they make a permanent concrete form using polystyrene foam for the shell of the building blocks for the forms or as in the case of Rastra Forms they make a cement form blocks in which use polystyrene beads as an aggregate and insulating element. Most of the companies use 2 inches or more of 2-pound density foam on the inside and outside walls of their form blocks. 2 lb. density polystyrene foam has a resistance to heat transfer from inside or outside with a rating of R-6 per inch so a standard 12” form has a rating of R-24 and the solid 8 inches of concrete on the inside has a thermal mass that is hard to calculate but is at least R-2. Save Green by Building Green These thick, airtight walls act like a warm hug for your home. Cozying you up while fending off sky-high utility bills. In fact, studies show ICF homeowners can slash energy costs by over 50%! But that’s just the start. These sustainable stunners will keep your wallet and Mother Nature happy for decades. Boasting fireproof forms, steel-reinforced durability, and low (like, hardly any) maintenance needs. Fortresses for the Modern Age Worried about wild weather? Scoff at severe storms when you live in an ICF stronghold! With their beastly steel-reinforced concrete cores, these homes shrug off raging winds and angry skies. They’ll keep your family safe and serene, no matter what’s happening outside. And that solid construction isn’t just brawn, it’s function too. With superior noise insulation, ICF houses hush the chaos of the outside world. More Than Meets the Eye (And Budget!) Okay, we know what you’re thinking: “This all sounds amazing, but what about the price!” True, ICF houses can have higher upfront costs. But stick with us for a second! Over the lifetime of your home, those energy savings, low maintenance, and storm-defying strength, house resell value, more than make up for it. We’re talking decades of cost-effective comfort! Plus, with free ICF house plans and concrete house plans available online for every dream home—from snug cottages to sprawling estates—you can easily find an affordable fit. ICF House Plans Advantages Insulation When you consider that a standard wood framed wall is R-13 using conventional fiberglass insulation between wood 2×4’s the difference is remarkable in energy consumption over the lifetime of your habitation. Another factor to understand is that fiberglass insulation ratings are primarily based on heat transfer from the inside of the house to the outside, but not so much from the outside in. Solid foam insulation is superior in this respect because it is unbiased in that it is as effective in resisting heat induction from the outside and this can be very important especially in hotter climates in reducing cooling loads.  Solid foam insulation is also at least twice as effective in sound isolation than fiberglass insulation. Sound Isolation Another advantage of solid insulation as in the use of ICF construction is its high sound isolation over conventional construction and insulation.  Such solid construction makes for a quiet home, whether from the sound pollution from outside or the hum of mechanical systems. Rebar Another common aspect of ICF systems is that they all use an integrated way of placing rebar reinforcement in proper spacing both vertically and horizontally. This is critical to this form of construction. Block Patterns What distinguishes these different companies’ forms is primarily in how the blocks fit together, such as in a tongue and groove pattern or a waffle pattern. Wall Attachments The other factor is the method they provide for attachments to the forms such as sheetrock, furring strips or paneling. Wall Strength Concrete volume affects form strength and thermal properties. More concrete often yields sturdier

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