Foam glass knowledge base

Foam glass conductivity in foam glass gravel: a calculation workflow

Thermal conductivity for foam glass gravel: evidence, application limits, detailing and acceptance.

In brief: thermal conductivity for foam glass gravel. The project outcome is that the design value is traceable from the data sheet to the installed layout.

Thermal conductivity: design task for foam glass gravel

In a loose-fill layer, thermal conductivity depends on grading, compaction, levels and separation of gravel from soil.

In foam glass gravel, thermal conductivity requires compaction; also check drainage and separation from adjoining materials.

Thermal conductivity: application boundary in foam glass gravel

In foam glass gravel, thermal conductivity has an important boundary. A tabulated conductivity is not the thermal resistance of the finished construction.

For thermal conductivity in foam glass gravel, address this specific risk: soil contamination or an unverified compaction factor.

Thermal conductivity: evidence for foam glass gravel

For foam glass gravel, the thermal conductivity source states: For D130, the declared maximum is 0.046 W/(m·K) at (10±1) °C and 0.048 W/(m·K) at (25±1) °C.

For thermal conductivity in foam glass gravel, apply this principle. The calculation must account for the test temperature and the condition of the complete assembly, rather than relying on one table value.

Thermal conductivity: detailing for foam glass gravel

The foam glass gravel drawing develops thermal conductivity through two decisions: design layer density; then compaction method and geosynthetic separation.

For thermal conductivity in foam glass gravel, dimensions and interface materials belong in the design, not in an improvised site decision.

Thermal conductivity: inputs for foam glass gravel

Before assessing thermal conductivity in foam glass gravel, obtain design temperatures, moisture conditions, layer thicknesses, thermal bridges and the calculation method.

For foam glass gravel, the verifiable thermal conductivity requirement is to record the design temperature, adopted conductivity and value source in the design report.

Thermal conductivity: installation in foam glass gravel

The installation rule for thermal conductivity in foam glass gravel is to control levels and prevent mixing with soil during spreading.

During foam glass gravel work concerning thermal conductivity, check installed thickness and continuity before the next layer hides the insulation.

Thermal conductivity: accepting work in foam glass gravel

Acceptance of thermal conductivity in foam glass gravel starts by matching delivery labels, drawings and the installed layout.

For thermal conductivity in foam glass gravel, close the identified risk with a photograph, measurement or record, not a verbal explanation.

The final foam glass gravel criterion for thermal conductivity is that the design value is traceable from the data sheet to the installed layout.

Thermal conductivity: conclusion for foam glass gravel

In foam glass gravel, foam glass delivers its thermal conductivity benefit through a coordinated detail, not one schedule entry.

The foam glass gravel workflow for thermal conductivity is to evidence the property, issue the detail, accept installation and retain concealed-work records.

Topics: foam glass, gravel, thermal conductivity, NEOPORM

This material is informational. Final decisions on thickness, details, fixings and compatible compounds must follow the project documentation, current technical data sheets and the conditions of the specific facility.