The Bautex Block wall is a screen-grid insulated concrete wall forming (ICF) system that creates a grid of closely spaced vertical and hor­i­zon­tal concrete members within a con­tin­u­ous­ly insulated wall. While the Bautex Block itself is not a load-bearing element of the system, the screen-grid concrete structure within the wall is the primary load-bearing exterior wall assembly for many projects.

In other cases, Bautex can be used as a secondary struc­tur­al system or building envelope solution in con­junc­tion with another struc­tur­al system such as struc­tur­al steel and poured concrete frames.

How are Bautex Walls Designed?

The struc­tur­al design of any building utilizing the Bautex Block Wall System must always be completed by a struc­tur­al engineer licensed in the state where the project will be located. There are two primary methods to determine the struc­tur­al design para­me­ters for a project:

Pre­scrip­tive Design (The­o­ret­i­cal Method):
The pre­scrip­tive design method uses generally accepted engi­neer­ing practices, such as slender column theories in ACI 318, to calculate the design of the concrete elements within the Bautex Block walls.

Hybrid Design (3D Modeling Method):
The hybrid design method uses generally accepted engi­neer­ing practices and 3D modeling software to indi­vid­u­al­ly analyze and design Bautex Block walls. The 3D modeling method allows the engineer to account for project specific details and to analyze the inter­ac­tion between different elements. Using an under­stand­ing of the inter­ac­tion of different elements, including jambs, pilasters and per­pen­dic­u­lar walls, the 3D modeling method allows designs that are not provided for in the pre­scrip­tive design tables.

Bautex Blocks form a continuous grid of concrete beams and columns that are 6-inches in dimeter on 16-inch centers throughout the wall. This profile is more efficient, using half the concrete of conventional 6-inch walls but yields more than 70% of the strength.
Beams are formed in the Bautex Block wall where a floor or roof connection needs to be made. Bond beams are also used at an intermediate height on taller walls where the concrete needs to be split into multiple pours.
Similar to other structural systems, openings will normally require larger jambs and lintel beams to be formed in the Bautex Block wall in order to carry the loads. Openings as wide as 18-feet can be achieved using the concrete within the Bautex walls.
Integral concrete pilasters formed within the Bautex Block wall can be used to carry specific point loads or to provide additional flexural capacity on taller walls. The most efficient profile is an 8-inch pilaster, which has significant capacity while remaining entirely within the thickness of the Bautex wall and does not interrupt the continuous insulation.

Get all of the details behind design and engineering with The Bautex Wall System.

Download Now


Bautex provides Struc­tur­al Engineers of Record all the design tools and technical support required to quickly and effi­cient­ly design walls using the Bautex Wall System. In some cases, however, engineers may elect to delegate the design of the Bautex walls for a project to third-party engineers. Bautex has developed rela­tion­ships with a network of engi­neer­ing firms that will provide these services for a variety of building types, including projects that require windstorm engineering.

To request delegated engi­neer­ing design services, please complete this form and return to us.

Typical Services Provided

  • Struc­tur­al designs for the portions of the project that include Bautex Block walls, including interior, exterior, load-bearing and non load-bearing walls.
  • Details for con­nec­tion of the walls to the roof framing and inter­me­di­ate floor framing.
  • Lintel and beam locations and details, if needed.
  • Design does NOT include any struc­tur­al steel, wood members, the foun­da­tion, or any other member except the Bautex Block walls.
  • Final wall system plans and details ready for per­mit­ting and con­struc­tion will be in PDF format.
  • Engi­neer­ing design per the applic­a­ble building code for the project.
  • Field obser­va­tions by an engineer available at an addi­tion­al cost.