What is EPS?

Expanded Polystyrene (EPS) is a rigid, closed cell, plastic foam material. EPS can be molded into a variety of shapes and sizes.  EPS is typically available in large blocks that can be cut into sheeting, architectural detail work for use on houses and buildings, signage, floatation etc.  It's lightweight properties make it very easy to work with. Architectural EPS is modified with a fire retardant and is usually encapsulated with an acrylic-based finish.

EPS is totally recyclable.  EPS does not contain ozone depleting CFC's or HCFC's.


What is Styrofoam?

A common mis-understanding about Expanded Polystyrene (EPS) is that it is referred to by many people as Styrofoam.  Styrofoam is actually a trademark for a product that is manufactured by DOW Chemical Company. Styrofoam board and EPS board have two completely different manufacturing processes.

The most notable difference is that EPS does not and has never used CFC's or HCFC's, which are harmful to our ozone layer, for the processing of making rigid insulation.

In producing the product, Styrofoam is an extruded foam board, whereas Expanded Polystyrene is a molded cellular board.


What is its use?

Architectural (EPS) details are used on building exteriors to add architectural designs, charm and luxury.


What are the advantages of using Fibre-Crown's Architectural Details?

  • Affordable, less costly than traditional methods
  • Structurally stable
  • Maintenance Free
  • Durable
  • Will not Crack, Peel or Fade
  • Easy Fast Assembly
  • Wide Variety of Shapes and Sizes including Trims, Sills, Cornices, Columns and Panels


Fibre-Crown's Architectural Details differ from traditional wood mouldings?



Shrinkage & Swelling
Readily shrinks and swells with changes in humidity


Flame Spread (lower numbers are safer)
Flame Spread rating greater or equal to 100
Flame Spread rating is 60 or less


Multiple pieces of wood and multiple millwork are required to achieve desired profile

State-of-the-art CAD driven technology generates profile in one piece

Water Damage
Readily affected by water and subject to damage
Does not rot
Rot & Insect Damage
Readily affected

Not susceptible to rot or insect attack if installed as per our installation guidelines

Strength & Flexibility
Relatively easy to crack
Excellent overall strength


Not all pieces are usable
All pieces are usable

How is it installed?

Mouldings may be applied directly to concrete, stucco, wood and other similar surfaces. Adhesives are used to hold the moulding in place. When the moulding is too heavy, fasteners are used to temporarily hold the moulding in place until the adhesive has time to dry. See our Installation Guidelines page for more details or call for technical support: 604-433-6955.