Energy efficiency

Buildings with the highest energy rating
The winning combination of blocks and floors for eliminating thermal bridges

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It is important to specify that the outer envelope accounts for 80% of the energy savings of a building, thus walls, floors and openings have decisive role. The insulation and insulating capabilities of construction materials are therefore fundamental for the construction of buildings that must comply with current and future standards required by increasingly stringent regulations.

The winning combination of Isotex wood cement formwork blocks and floors allows the elimination of thermal and acoustic bridges, guaranteeing superior energy performance. Isotex has also studied and developed its own Isotex building system, including in the range some special pieces and accessories such as the corner block, lintel, floor slab block, pillar block and shoulder block for doors and windows. This makes it possible to create buildings with the highest classification and energy efficiency A4, NZEB (Nearly Zero energy Building) and ZEB (Zero energy Building).

Energy saving. Here's how Isotex blocks and floors achieve the best energy classifications

The particular characteristics of formwork and floor blocks, the quality of the materials used and their geometry are the key to the high energy performance values that the Isotex wood cement building system can guarantee. The excellent thermal transmittance values of ISOTEX products, combined with the excellent characteristics of the other components required for the energy calculation, allow ISOTEX buildings to achieve the best energy classification, namely Class A4-NZEB-ZEB (zero consumption).

Blocks for external load-bearing walls have transmittance ranging from 0.34 to 0.15 W/m²K and from 0.79 to 0.56 W/m²K for internal load-bearing walls. As for panels, values range from 0.63 to 0.60 W/m²K for intermediate panels and from 0.24 to 0.28 W/m²K for floor and ceiling panels.

Superior performance structure, materials and insulation

The right block for your climate zone

The Word has many different climates with varying temperature and humidity conditions. It is therefore essential to choose the right structural block for your area. There are different climate zones, also called climate bands.

Different countries and continents can have hot and humid climatic conditions (less heating required) and very cold climatic zones (more heating required).

We can help you identify the appropriated wood cement block for the State in which you are carrying out your project.

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Technical documentation at your disposal. Certificates on the energy performance of Isotex blocks and floors

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Technical file thermal insulation – TEP (ANIT)

Technical manual of energy efficiency in reference to the Ministerial Decree of 26 June 2015 drawn up by ANIT for the Isotex wood cement building system.

Thermal insulation certificates of blocks - ANIT

Thermal insulation performance of Isotex blocks certified by ANIT

Thermal insulation certificates of floors - ANIT

Thermal insulation performance of Isotex floors certified by ANIT

Air permeability test

See how the Isotex wall prevents air leakage and heat dispersion.

Steam permeability test

Analyses the performance of the Isotex wall in letting steam pass through and preventing the formation of condensation and humidity.

LAMBDA test report

It is the test of thermal resistance with the hot plate method with a guard ring and with the thermal flow meter method.

Energy assessment of new buildings and NZEB – TEP classification (ANIT)

Study on new buildings and related assessment of energy classification and NZEB

Hygrometric tests

Tests to determine the degree of water absorption, water residue and frost.

Analyses. Why choose the Isotex system

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VOC testing Isotex obtains the indoor air comfort gold label

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New EPBD green directives

17. Risparmio energetico

How to build NZEB buildings

Specifications

External and internal load-bearing walls made with Isotex® structural wood cement blocks in a H formation, with a density of 534 ±10% kg/m³ laid dry, staggered by half a block, casting every 5-6 rows, with a single connecting hollow for the concrete.