Quantum Select 5.0 Insulation Board
Drained Expanded Polystyrene Type III Insulation Board
Technical Performance Features
R-Value 5.0 Per inch

0.74 m2 (8 ft2) per board


Quantum Select 5.0 Insulation Board is a Type III Expanded Polystyrene Insulation Board (as per ULC-S701 and ASTM-C-578) featuring geometrically defined drainage cavities on the back side of the insulation board, intended for use in Quantum Select family of EIFS Systems. Quantum Select 5.0 Insulation is supplied in sheets which are 610 mm (2ft) x 1220 mm (4 ft), in thicknesses from 50.8 mm (2”) to 152 mm (6”) in increments of 12.5 mm (1/2”). Quantum Select 5.0 Insulation can be applied over any substrate approved for our Quantum Select family of EIFS Systems and attached by chemical adhesive bond or by mechanical fasteners as specified. The sheets are not to be applied directly to framing members when part of any Quantum Select family of EIFS System. All test results given herein, or any of those in our EIFS Systems are specific to use Quantum Select 5.0 Insulation. Substitution voids all tests results and systems warranties offered. Special aesthetic shapes supplied by others are not incorporated in the EIFS System warranty.

  • R-Value 5.0 per Inch (at -18·°C)
  • GDDC Factor 47%  (Geometrically Defined Drainage Cavity)
  • CI factor 0.88 RSI (R 5.0) per inch  (Continuous Insulation)
  • Moisture does not weaken EPS
  • 10mm drainage cavity
  • Thermal protection
  • EPS contains no CFC’s, HCFC’s or HFC’s
  • Chemically inert
  • EPS is a recyclable material
  • Waste to Energy safe

For use as the Exterior insulation in all Quantum Select family of EIFS Systems. The use of the expanded polystyrene is governed by the applicable building codes.

Physical Properties
Dimensional Tolerances

± 1.6 mm (1/16")

Bowing Tolerances

± 0.8 mm (1/32")

Available Thicknesses

50.8 mm (2") to 152 mm (6") in 12.5 mm (1/2") increments


Type IV EPS - 2.0 lb/ft³ (Virgin) Density Expanded Polystyrene


0.74 m2 (8 ft2) per board

Performance Properties
Method Results

ASTM D1622

2.0 lb/ft3 (32.0 Kg/m3) – Type IV EPS

Thermal Resistance


  • 4.3 ft2 ·h·°F/BTU – Type IV EPS (R-Value / 1” @ 75°F)
  • 0.76 m² ·°K/W - Type IV EPS (RSI / 25mm @ 24·°C)
Compressive Strength

ASTM D1612

37.3 psi (257.4 kPa) at 10% Strain – Type IV EPS

Flexural Strength


63.2 psi (436.0 kPa) – Type IV EPS

Water Absorption

ASTM D2842

1.57 % (% by volume) – Type IV EPS

Water Vapour Permeance


104.29 ng/Pa.s.m2 (1.83 perms) – Type IV EPS

Dimensional Stability

ASTM D2126

-1.3 % (linear change) – Type IV EPS

Limiting Oxygen Index

ASTM D2863

>24 % - Type IV EPS