PlastiSpan Insulation a component in EIFS

Plasti-FabIn this next blog we will also look at another exterior application option for our Commercial Building. This time being an EIFS system as an exterior wall application,  specifically the insulating component of this system.

For many years, the stucco-like appearance of Exterior Insulating and Finish Systems (EIFS) has given commercial buildings high curb appeal, broad design and color flexibility; low maintenance and durability; and increased energy efficiency.

EIFSEIFS is an insulating, decorative and protective finish system for exterior walls that can be installed on any type of construction. It is the only exterior wall covering that insulates and provides weather protection in a selection of shapes, colors, and textures that can replicate almost any architectural style or finish material, or stand by itself as an architectural finish.

The system typically consists of, from exterior to interior:

  • A colour finish coat of stucco, which can be any colour chosen by the end user.
  • A lathe mesh, applied for reinforcement strength as well as to bond the two coats of stucco.
  • A base coat of stucco, which is usually thicker than the finish coating for strength and durability
  • PlastiSpan Expanded Polystyrene (EPS) EFS Insulation, for energy efficiency. Available in various thicknesses to ensure proper thermal resistance or R-Value
  • Approved Adhesive ( consult your Exterior Insulation Finish System Manufacturer’s guidelines)
  • An approved sheathing board or substrate

EIFS provides many advantages that other exterior finishes and sidings do not.  Foremost is the superior energy efficiency and great design flexibility.  In fact, studies have shown that EIFS can reduce the air infiltration in a wall by as much as 55%, when compared to standard brick or wood construction. One should bear in mind that an EIFS system is a non-structural component of the wall.  In other words, it is not designed to be weight bearing.

However, let’s concentrate on the Insulation component of an EIFS system, which is provided by the PLASTISPAN EFS BOARD.

PlastiSpan EFS board is a moulded expanded polystyrene (EPS) insulation board manufactured under a stringent quality control program that includes third party certification of material properties. Period styles or clean modern shapes can be produced for building facades by forming PlastiSpan EFS insulation into special shapes. Since PlastiSpan EFS insulation is lightweight, special features can be created without any additional structural load on the building.

EIFS manufacturers use PlastiSpan EFS insulation because it is flexible, resilient and permits some thermal expansion / contraction of the applied finish or building movement without cracking the exterior finish.

PlastiSpan EFS insulation does not rot or decay. In addition, PlastiSpan EFS insulation does not support the growth of fungi or bacterial growth. However it is important to remember that successful use of PlastiSpan EFS insulation, as with any product, depends upon its correct installation in accordance with good design practices. Always follow Exterior Insulation Finish Systems manufacturer’s instructions for the application of the PlastiSpan EFS insulation and adhesives.

For more information about Plasti-Fab’s EIFS for commercial construction visit

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