Bautex Block FAQs

Below are some of the most frequently asked questions from architects, engineers and building contractors about construction using the Bautex Wall System. If you have a question about the Bautex Wall System, please fill out the form at right and submit.

Back to Question List ^ How do you ensure the concrete fully fills the cores?

Ensuring that the cores are filled with concrete is a four part process:

  • Ensuring proper concrete mix design of 8” to 9” slump with a 3/8” maximum aggregate, typically pea gravel or river rock.
  • Wetting the forms prior to the pour to promote good concrete flow through the cores.
  • Vibrating the concrete during the pour to work out any potential bridging.
  • Utilizing a probe to check the horizontal cores during the pour as outlined in the Bautex Installation Guide.
Back to Question List ^ Do you use mortar with the Bautex Wall System?

No mortar is required.  Bautex Blocks are dry stacked and held in place temporarily with polyurethane foam adhesive until the concrete cores are poured and the wall is completed.

Back to Question List ^ Does the Bautex Wall System move during the pour like regular ICF?

No. The increased weight of the Bautex block compared to regular foam-plastic ICF allows the block to stay in place during the pour and decreases the need for extensive and expensive bracing systems.

Back to Question List ^ Who engineers the Bautex Wall System?

The engineer of record for the project typically specifies the reinforcing and wall design with guidance from the Bautex Team.

Back to Question List ^ Is there a fire rated listing for the Bautex Wall System?

Yes. The Bautex ASTM E119 and CAN/ULC S101 fire rating is listed with Quality Auditing Institutue (QAI), an ICC accredited third party testing and listing agency. The QAI listing number is B1075-1 and can be found at www.qai.org.

Back to Question List ^ Who installs the Bautex Wall System?

Bautex is typically installed by local masonry or concrete contractors.  We have several installers trained in many metropolitan areas in the South Central region of the United States. Our website has a complete listing of trained installers.

Back to Question List ^ What is the R-value for the Bautex Wall System and how much do I need?

The continuous R-Value of the Bautex Wall System is R-14. This is without exterior or interior finishes. A typical Bautex Wall with brick veneer is a continuous R-18 system. In moderate to warmer climate zones, an R-value of R-12 to R-14 usually provides an ideal balance of cost and energy efficiency.

Back to Question List ^ How does the mass of the Bautex Wall System affect the energy efficiency of the system?

The thermal mass of the wall acts to absorb energy and delay transfer through the outside walls of the structure. This leads to lower HVAC operating cost than low mass systems like metal and wood framing.  As a comparison, in moderate to warmer climate zones, a framed wall would need to be built to more than R-28 to perform as well as the Bautex ICF Wall System.

Back to Question List ^ How do I attach brick and stone veneer to the Bautex Wall System?

Brick and stone can be attached very quickly and easily using standard brick ties such as a Hohmann and Bernard 2-Seal™ Tie.

Back to Question List ^ How do I install stucco over the Bautex Wall System?

Stuccomax™, a mineral-based stucco that is distributed by Bautex, can be applied directly over the Bautex Wall System and Bautex Air and Moisture Barrier.  Synthetic stuccos from other manufacturers may also work well directly applied to the Bautex Wall System. Traditional cement-based stucco is installed using conventional stucco practices and with a metal lath and control joint system.

Back to Question List ^ How do I install veneer panel systems over the Bautex Wall System?

Veneer panel systems can be attached to the concrete cores of the Bautex Wall System using a Bautex Wall Anchor or a concrete anchoring system, like Hilti or Tapcon.

Back to Question List ^ What are the interior finish options with the Bautex Wall System?

Bautex may be finished on the interior with any standard finish, including sheetrock on a furring system or directly adhered to the interior of the Bautex block.  Another option is standard interior plaster or PlasterMax™, a very durable and abuse-resistant plaster distributed by Bautex.

Back to Question List ^ Is there rebar in every core in the Bautex Wall System?

Yes, each core contains a minimum of #3 bar, both horizontally and vertically.  All bars are centered in the core and verticals and horizontals are tied prior to the pour.

Back to Question List ^ What is the recycled content of the Bautex Wall System?

The recycled content of the Bautex Block is minimum 28% by weight.

Back to Question List ^ What is the Bautex Wall System’s STC rating for noise mitigation?

The base Bautex Wall System with plaster and stucco finishes on each side has an STC rating of 51.

Back to Question List ^ How does the first cost of the Bautex Wall System compare to traditional building systems?

Typically, the Bautex Wall system is in line with traditional systems like metal stud and CMU block on first cost of construction.

Back to Question List ^ How much does each Bautex Block weigh?

Each Bautex Block weighs approximately 45 lbs. without concrete and rebar. When filled with concrete, an 8-inch concrete block (CMU) wall will weigh roughly 50% more than the Bautex Wall System. A poured traditional ICF wall will weigh roughly 100% more than the Bautex Wall System.

Back to Question List ^ How many different Bautex Block sizes and profiles are available?

There is only one block size and configuration needed to complete a wall build.  All “special shapes,” such as bond beams, lintels, corners, etc. are created in the field from this base block.

Back to Question List ^ How is electrical wiring typically installed in the Bautex Wall System?

Electrical and data conduit are typically installed within the 2-inch shoulder of the block on the interior or the exterior of the wall.  Channels for the conduit are cut into the shoulders using a wood router tool.  The conduit is then held in place using the same adhesive used to install the Bautex Block.  The electrical wiring is typically installed after the wall is poured, allowing for faster electrical installation on most projects.

Back to Question List ^ How is plumbing typically installed in the Bautex Wall System?

Plumbing is routed either in the 2-inch shoulder of the Bautex Block or smaller lines may be run in the cores of the block. Through wall penetrations can be made before or after concrete placement in the 10-inch square areas of the block that are insulation only which occur every 16 inches on center throughout the wall. 

Back to Question List ^ Where can I get Revit® or CAD tools to use with the Bautex Wall System?

Custom Revit or CAD tools to use with the Bautex Wall System can be found in the Tools and Resources section of our Bautex website.

Back to Question List ^ How long is the warranty on the Bautex Wall System components?

Bautex standard warranty terms are 5 years on all components.