Heat Technology Laboratory

This section takes care of analyzing of thermal insulation characteristics of materials and components in the building field and for industrial applications. Among these products we can find:

Thermal insulations;
Wallings, lofts;
Insulated glass walls;
Fixtures , curtain walls, armoured doors, industrial front doors, rubbish containers, subframes, insulated abutments;
Prefabricated concrete panels,
Self-supporting sandwich panels;
Insulated cups, pre-insulated tubes for district heating;

The thermal characterization can be realized both through laboratory tests and through theoretical models; Moreover it is possible to realize the analysis of thermal performances of the building shell in field through the thermographic analysis and heat flow meters.

Another laboratory activity is the characterization of differents types of chimneys for the evacuation of combustion soots: metallic chimneys, flexible chimneys, plastic chimneys, CLS chimneys, coaxial chimneys, attic crossing and wooden roofs, ecc.
Tests can be executed according to national, international and Europeans regulations;
This section uses high qualified staff and with a long experience in the field of thermal properties of materials.

The laboratory use a management system for the quality according to the UNI CEI EN ISO/IEC 17025 regulation, is a business partner of ANIT ( National Association for Thermal and Acoustic Insulation) and moreover it is accredited ACCREDIA LAB N. 0021 for tests of:

Thermal resistance and thermal conductivity with hot plate method with guard ring;
Determination of properties of transmission/ permeability to water vapor
KEYMARK – REGISTERED LABORATORY FOR TEST OF THERMAL CONDUCTIVITY

Thermal measures in the field and in the laboratory

Measure of the thermal transmittance of walls and buildings and insulated glass walls by using thermal fluxmeter, according to ISO 9869 regulation. Positioning sensors with the help of infrared thermography.

Thermographic inspection of building walls for the qualitative analysis of thermal irregulations of the construction shell, according to ISO 6781 regulation. The Institute has a qualified personnel “Level 2 Infrared Thermographic Testing = TT “ according to ISO 9712 and EN 473 in the field of non-destructive tests.
Test in the field of characteristics of insulated glass walls and curtain walls:
Measure of stratification of insulated glass wall.
Test of reflective /low emissivity coating presence.
Measure of the thermal transmittance of the insulated glass wall and the blind panel by using of thermal fluxmeter, according to ISO 9869 regulation;
Measure of the bright transmission factor by using the luxmeter and the regular energetic transmission factor by using the solarimeter according to par A.1.3 of the UNI EN 15603 regulation

Thermal measures in the laboratory

Thermal transmittance with the hot chamber method of:

Walls (UNI EN ISO 8990);
Windows (UNI EN ISO 12567-1);
Fixtures shell (UNI EN 12312-2);
Container for roller blind (UNI EN 12412-4).

Thermal Conductivity and thermal Resistance with the hot plate method with guard ring according to UNI EN 12664, UNI EN 12667 and UNI EN 12939 regulation.
Thermal conductivity according to ASTM E 1530 of materials with small thickness ( for example: proofs obtained from brick blocks, membranes and coatings).
Thermal conductivity with high temperatures (into the range of 50÷700 °C), with the hot plate method with guard ring according to ISO 8302, EN 12664, EN 12667 regulation of insulating for systems and industrial applications.
Thermal conductivity with radial method according to UNI EN ISO 8497 regulation of:
Insulating cupels for systems and industrial applications;
Pre-insulated tubes for district heating (UNI EN 253).

Thermal analysis

THERMAL ANALYSIS TO FINISHED TWO-DIMENSIONAL AND THREE-DIMENSIONAL ELEMENTS

Thermal resistance of elements for brickwork and thermal transmittance of brickworks according to UNI EN 1745- theoretical method.
Thermal transmittance of fixtures (shells, windows, French windows, containers, shading closures, security doors, industrial front gates) according to UNI EN ISO 10077-1 and UNI EN ISO 10077-2.
Thermal transmittance of curtain walls according to UNI EN 13947.
Linear and punctual thermal transmittance of thermal bridges of prefabricated panels made in concrete, self-supporting sandwich panels, subframe, insulating abutments, according to UNI EN ISO 10211.

ANALYSIS OF THERMAL INACTIVITY OF WALLS AND COVERINGS.

Measure of the specific thermal capacity (specific heat) according to D attachment of UNI EN 15498 regulation of construction materials.
Assessment of dynamic thermal characteristics according to UNI EN ISO 13786 regulation. (periodic thermal transmittance, internal and external thermal admittance, factor of softening, phase shift, internal and external periodic arheic thermal capacity).

ANALYSIS OF INTEGRATED RADIANT SYSTEMS INTO THE BUILDING STRUCTURES

Assessment of the thermal power of underfloor heating systems according to UNI EN 1264-2 regulation

HYGROMETRIC CHARACTERISTICS MEASURE

Permeability to steam of:

Construction materials (UNI EN ISO 12572, ASTM E 96);
Thermal insulations (UNI EN 12086);
Plasters (UNI EN 1015-19);
Membranes (UNI EN 1931);
Thermal insulations for systems and industrial placements (UNI EN 13469);
Water absorption by immersion (UNI EN ISO 12087) and by diffusion (UNI EN 12088) of thermal insulations and water absorption of plastic materials (UNI EN ISO 62).

TESTS ON CHIMNEYS

Type of chimney:

Metallic chimneys (EN 1856-1);
Metallic smoke ducts and smoke canals (EN 1856-2);
Plastic chimneys (EN 14471);
Chimneys for watertight heating appliances (EN 14989) in coaxial or split configuration;
Metallic smoke ducts made in concrete (EN 1857);
Smoke blocks made in concrete (EN 1858);
External elements made in concrete (EN 12446).

Type of tests:

Mechanical tests (compression resistance, traction resistance, resistance to lateral weight for non-vertical orientation, resistance to wind weight);
Gas resistance
Rainwater of elements resistance
Resistance to elements flow
Resistance to terminals flow
Aerodynamic behavior of terminals
Condensation resistance
Steam diffusion resistance
Heat resistance
Thermal shock resistance
Thermal resistance
Resistance to corrosion of:
Metallic chimneys for the V2 designation, according to A.2 attachment of the EN 1856-1 regulation;
Concrete chimneys according to EN 1858 regulation into par. A.8.

MAIN EQUIPMENT

Hot plate with guard ring with sizes 500 mm x 500 mm in compliance to ISO 8302, UNI EN 12664 and UNI EN 12667 regulations for measures of thermal conductivity in room temperature;

Hot plate with guard ring with sizes 500 mm x 500 mm in compliance to ISO 8302 and UNI EN 12667 regulation for measures of thermal conductivity in high temperature (range 50 °C ÷ 700°C);
Hot plate with thermal fluxometers with sizes 50 mm x 50 mm in compliance to the ASTM E 1530 regulation for measures of thermal conductivity of proofs with thickness under 10 mm;
Cylindrical heaters set with guard in compliance to UNI EN ISO 8497 for measures of radial thermal conductivity;
Hot chamber in compliance to UNI EN ISO 8990 for measures of thermal transmittance;
Measure and thermal transmittance set in compliance to ISO 9869 regulation, composed of: thermal fluxometers, temperature sensors and data acquisition system;
Thermographic equipment for laboratory and portable;
Scales with 1 mg and 0,1 mg of resolution for measures of steam permeability;
Equipment in compliance to UNI EN 12088 regulation for the measure of water absorption for diffusion;
Systems set for chimney tests (pressure resistance, heat resistance, thermal resistance, wind resistance, rain water resistance, flow resistance, corrosion resistance, ecc…).

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