The Importance of Home Insulation


The opaque vertical structures which delimit most buildings bear the greatest responsibility for thermal exchanges between the inside and the outside.

It is estimated that when restructuring, thermally insulating the external walls alone allows achieving energy savings of 20-25% in the case of single-family buildings, and of 30-35% for appartments.

In passive buildings and in those with a very low energy consumption (Nearly Zero Energy Buildings) the opaque outside walls are characterised by very low thermal transmittance values, ranging between 0,10 to 0,20 W/mK2.

These values can be obtained through various building methods and by placing the insulating layer:

  • inside the cavity
  • on the inner side of the walls
  • on the outer side of the walls
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The advantages of external insulation


Performance, Operational & Economic Advantages:
  • applying a continuous layer of insulation eliminates heat bridges
  • insulation protects structures from large temperature changes thereby ensuring a longer life
  • the structural mass, concentrated inside, allows taking advantage of its thermal inertia: the walls cool down and heat up more slowly
  • constructing single-wall buildings with an external insulation is cost effective compared with double masonry wall solutions
Further Advantages When Restructuring From The Outside:
  • the intervention does not reduce the internal dimensions of the housing
  • it can be achieved without compromising the fitness of buildings and with the least inconvenience for the inhabitants
  • management of the site, outside the buildings, is easier and less invasive
  • it improves sound insulation
  • the real estate obtains an energy and aesthetic re-qualification upgrade, and the intervention can be organised in order to coincide with facade maintenance works

Benefits of the STIFERITE exterior insulation system


The STIFERITE thermal insulation consists of polyiso foam, a particular type of rigid polyurethane foam developed by the STIFERITE laboratories in order to best meet performance and operational market requirements.

The STIFERITE production range includes panels with different characteristics and types of coatings which have been developed to meet specific application needs. It is important to note that only panels specifically designated as suitable for external insulation systems must be used for ETICS applications (cappotto).


The Best Insulating Performances:
The main feature of the STIFERITE insulants is their low thermal conductivity which ensures obtaining a high performance insulation with reduced thickness.




Other Performances:

In addition to the excellent insulating performance, other characteristics of the STIFERITE polyurethanes are particularly important in exterior insulation systems:

  • Mechanical properties: The STIFERITE insulating systems offer an excellent compressive strength performance, and perpendicular side tensile strength and tear resistance. This latter feature allows reducing the number of anchors needed to guarantee perfect fastening to the structure compared with alternative materials.
  • Waterproofing
  • Good water vapour permeability
  • Light weight and workability
  • Good fire performance: Building structures insulated with STIFERITE panels offer the best reaction-to-fire performance which can be obtained by using organic insulators.
  • Contribution to the sound insulation of the facade: Laboratory tests have shown the good acoustic behaviour of building structures insulated with STIFERITE panels
  • Environmental Sustainability: Using lightweight, efficient and durable insulating materials helps to reduce the environmental impact of buildings.

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