ICF - Insulated Concrete Forms / Compound ICF
Building with Legacy Block Insulated Concrete Forms provide the best opportunity for a maximized return-on-investment.
As you would expect, when its time to sell,
Legacy Block insulated concrete forms homes consistently demand higher resale values. According to The National Association of Realtors, for every $1 savings in annual energy costs, home values increase by an average of $20.
About Legacy Block
What are Insulated Concrete Forms?
Insulated Concrete Forms (ICFs) are formwork for concrete that stay in place as permanent building insulation for cast-in-place, reinforced concrete walls, floors, and roofs
Legacy Block Compound Insulated Concrete Forms (ICCFs) are recognized as the premiere building solution for economical and environmentally-friendly construction.
The ICFs are modular units requiring no mortar for stacking and are filled with concrete. Assembly is similar to building with Lego(R) bricks and create the form for a building’s structural walls. Concrete is poured into cavities lined with reinforcing steel (rebar) within the Legacy Block units for stability and strength. The resulting walls have incredible flexural strength, similar to that of bridges and skyscraper buildings.
While most insulated concrete forms (made of EPS - expanded polystyrene) are filled with concrete in “lifts” to ensure no blowouts occur like other concrete formwork, Legacy Block invented the Composite Insulated Concrete Forms (ICCF) which are filled at story-height (10-12 feet) in just one lift.
After the concrete has cured, the Legacy Block ICFs are left in place permanently. This ensures:
- Thermal insulation
- Acoustic insulation
- Adequate space for electrical and plumbing installation
- Strong backing for gypsum boards, stucco, brick, stone, or plaster on interior or exterior applications
Legacy Blocks are the Number 1 Choice in ICF Construction!
Legacy Cementitious ICF Blocks range from 3 to 10 feet long and 8 ½, 10, 12 or 14 inches thick made from a mixture of small EPS beads and cement. The interior cavities of Legacy Blocks are designed to maximize strength when filled with concrete and steel reinforcement, creating a rigid skeleton of 6” columns, both vertically and horizontally, inside the block. Homes built with Legacy Block CICF offer superior strength yet use 40% less concrete and steel than regular ICF blocks, have a 5-hour fire rating, are impervious to mold and insects. Structures built with Legacy ICF Blocks can withstand Category 5 hurricane and tornado force winds.
A Legacy Block sound insulated wall also offers superior insulative qualities and can reduce HVAC costs up to 50%. Air movement is the primary mechanism for moisture transfer. In fact, air accounts for 98% of all vapor movement in insulated cavities. To control moisture, builders often add a plastic vapor barrier on the inside wall frame. A Legacy Block ICF Home does not require a Vapor barrier. This is because of Legacy Block’s unique ability to naturally block moisture. The density and mass of Legacy Block does two things: stops the flow of moisture into the wall cavity, and slows the transmission of heat or cold.
ASHRAE standards warn against the use of plastic vapor barriers in any structure built in warm climates. There is also danger with moisture problems in cold climates caused by moisture being driven into the wall in the summer. Vapor barriers are often installed on the interior in cold climates to control moisture movement from inside out during warm season however those same vapor barriers trap the moisture contained in warm summer air. A Legacy Block ICF House will eliminate this problem.
Legacy Block ICF Construction is quick and easy, significantly reducing the time and costs to build. Whatever architectural style you prefer, our Cementitious ICF construction blocks allow for unlimited architectural design and are very easy to work with.
We deliver factory direct and materials can be on site within 4 – 7 days. Build with Strength – Build for Life! Call today 321 284 8180