Providing cost effective, extremely energy efficient wall systems by utilizing sustainable, localized manufacturing processes - worldwide.

Unfaced Block

Specifically designed for sub-grade building applications and highway sound barrier walls..

Lightest, most user friendly composite ICF on the market.

Construction FAQ's

How many square feet per block?
3.56 sq ft per block.

How much Grout is required?
Tech Block uses 30% less concrete than standard ICFs and other wall systems.
1 yard will fill about 100 square feet or 28.4 blocks.

How much rebar is required?
About 5.33 feet per block, or 7.5 sticks per 100 sq. feet of wall.

What type of grout is required?
3/8"s pea gravel with a slump of 7" and a strength of 3000 psi, minimum, (more if design requires). Also, many ready mix plants offer self-consolidating mixes which are appropriate for this application

Can Tech Block forms be used below grade?
Yes, for basement applications use Tech Block forms with the facing on one side, for foundation applications use completely unfaced block. Waterproofing is required and is covered by applicable codes.

Is special equipment required?
No, Tech Block forms may be installed and cut with common carpentry tools. ICF specific bracing may be used, as may turnbuckles, but bracing can also be accomplished with lumber. All braces may be screwed directly to the block as needed.

What hardware is needed?
Polyurethane foam sealant is used to glue blocks together as needed, particularly at corners and around window and door openings. 12" or 14" roofing screws can be used to attach bracing all the way through a form to the facing on the other side. Anchor bolts may be required for bucks, plates and ledgers.

How much do Tech Block forms weigh?
About 46 lbs. At 32" long and 16" tall, they are easily moved by one person.

What kind of exterior finishes can I use with Tech Block?
All finishes must be installed according to the requirements of your local jurisdiction and the IBC.

Tech Block's patented fastening system is the only Composite ICF that can be nailed or screwed directly to.
Siding can be installed easily with out worry of nails or screws coming loose.
Stucco, rock and brick veneer, plaster and similar products can easily be adhered due to Tech Blocks unfaced cementitious option.

Is Tech Block easier to hang drywall to?
Tech Block is the only Composite ICF that can take the direct attachment of drywall. Again, you can't screw directly into other Composite ICFs - therefore, the drywaller is relegated to gluing the drywall on. This is slow, expensive, messy and a job no drywaller would prefer.

With the pre-attached facing, can I hang cabinets to Tech Block?
Yes, Tech Block allows for cabinetry and drywall to be directly applied without expensive and time consuming furrowing, attachment strips or enhancements as is the case with other composite ICFs, or calibrating to plastic conduit targets as is the case with standard ICFs. This advantage makes hanging art work, mirrors and handy shelving a breeze.

How is Tech Block cut?
Tech Block has the design flexibility to be easily cut and shaped with regular woodworking saws to create shapes and geometries with unlimited ability. You can router for electrical and plumbing chases and easily carve design features. You can reuse cut portions into other areas of the wall system and cut down job site waste.

How easy is it to create a wall radius with Tech Block?
Tech Block is not a rigid design form but a block form that can be fashioned into fluid and unlimited curvilinear shapes and angles.

How high can we build with Tech Block?
Depending on design and engineering specs, you can create multi-level structures for commercial and residential use.


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