U 0.11
HD III 44 Series
HDIII 44⁄23
230mm EPS · 0.11 W/m²K · PassivHaus and NZEB compliant
0.11U-value
REI 120Fire
53 dBAcoustic
440mmWall
Isotex ICF — Six Building Systems
Every system.
Every spec.
Wood-cement ICF across six product families. From PassivHaus thermal walls to structural formwork, floor slabs and acoustic partitions. CE marked. Every product.
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HDIII 44/23
HDIII 44/17
HDIII 38/14
HDIII 44/23 — Flagship thermal system · Source-backed data
0.11W/m²K
REI 120Fire
53 dBAcoustic
440mmDepth
17Products
6 familiesBuilding systems
CE · BBA · ETACertified
EPD S-P-01472Environdec verified
38+ yearsIsotex SRL Italy
HD III 44 Series
Flagship Thermal Wall System
Wall layer composition — HDIII rangeWC | EPS | RC | WC
HDIII 44/230.11
HDIII 44/200.15
HDIII 44/170.17
HDIII 44/140.21
HDIII 38/170.15
HDIII 38/140.21
HDIII 38/100.27
U 0.15
HD III 44 Series
HDIII 44⁄20
200mm EPS · 0.15 W/m²K · NZEB compliant · increased structural capacity
0.15U-value
REI 120Fire
—Acoustic
440mmWall
U 0.17
HD III 44 Series
HDIII 44⁄17
170mm EPS · 0.17 W/m²K · NZEB compliant
0.17U-value
REI 120Fire
—Acoustic
440mmWall
HB Formwork
Structural Formwork Blocks
Structural
HB Formwork
HB 25⁄16
250mm total · RC core 160mm · loadbearing wall formwork
—U-value
REI 120Fire
—Acoustic
250mmWall
45 kN/m
HB Formwork
HB 30⁄19
300mm total · RC core 190mm · 45 kN/m max capacity
—U-value
REI 120Fire
—Acoustic
300mmWall
Floor Systems
Beam-Block Slabs S20–S49
5,000mm
Floor Systems
Floor S25
250mm depth · 5,000mm max span · 360 kg/m²
5,000mmMax span
REI 240Fire
360kg/m²
250mmDepth
7,000mm
Floor Systems
Floor S49
490mm depth · 7,000mm max span · max capacity configuration
7,000mmMax span
REI 240Fire
500kg/m²
490mmDepth
System comparison
Compare side by side
Select up to three products. All values from Isotex technical documentation.
| Specification | HDIII 44/23 | HDIII 44/17 | HB 30/19 |
|---|---|---|---|
| U-value (W/m²K) | 0.11 | 0.17 | — |
| Fire resistance | REI 120 | REI 120 | REI 120 |
| Acoustic Rw | 53 dB | — | — |
| Wall depth | 440mm | 440mm | 300mm |
| Loadbearing | ✓ | ✓ | ✓ |
| PassivHaus | ✓ | — | — |
CE
CE MarkedETA
ETA-08/0023BBA
BBA CertifiedEPD
S-P-01472REI
120 · 240EC8
SeismicBMB
Neopor® BMBcertSpecification support
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Technical Team
30 years of construction expertise
Elite Blocc's technical team advises on product selection, thermal targets and structural strategy — free of charge.
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Specify the right system.
Six certified building systems. Every performance value source-backed. 30 years of Isotex construction experience behind every recommendation.
Published performance values are product- and assembly-specific and are based on supplied Isotex technical documentation. Final product selection, structural design, fire strategy, acoustic design, thermal modelling and compliance checks must be confirmed by the appointed project professionals and relevant authorities having jurisdiction.