Flat EPS Roof Insulation

ACH Foam Technologies' Foam-Control® Flat Roof Insulation provides high long-term R-Value of EPS and labor-saving face laminates. Suitable for use with all roofing membrane materials, expanded polystyrene (EPS) roof insulation is compatible with loose-laid and attached single-ply membranes, conventional built-up roofing or modified bitumen systems.

Foam-Control® Roof Insulation

Foam-Control® Flat Roof Insulation is unfaced EPS that is suitable for use with loosely laid single-ply membranes. Flat EPS Roof Insulation is also used with conventional BUR and mechanically or adhesively attached single-ply and modified bitumen membranes when field-applied cover boards are used. Boards are standard 4'x4' and 4'x8' sizes.


Foam-Control® Type II EPS R-Values
 

Thickness in Inches R-Value
at 75º F		 R-Value 
at 40º F
2.0 8.3 9.1
2.4 10.0 10.9
3.0 12.5 13.7
3.5 14.6 16.0
4.0 16.7 18.2
4.8 20.0 21.8
7.2 30.0 33.8

ACH Foam Technologies’ Foam-Control® Flat Roof Insulation is available with a factory-laminated fiberboard, perlite or OSB face that gives greater panel integrity and reduces installation time. It's ideal for use with conventional BUR and mechanically or adhesively attached single-ply and modified bitumen membranes. Standard panel size is 4'x4' and 4'x8'. OSB-faced panel size is 4'x8'.

Foam-Control® Plus+® Roof Insulation

Foam-Control® PLUS+® is an architectural insulation product line with high compressive strength, stable R-value, and superior moisture resistance. Foam‑Control PLUS+ is a premium grade insulation manufactured to provide architects, specifiers, distributors, and contractors all the features and benefits inherent in a high quality architectural insulation.
 
  • High compressive strength of 15, 25, 40 or 60 psi
  • High R-value that never changes and is stable over time
  • Closed cell insulation with superior moisture resistance
  • High drying potential to rapidly release absorbed moisture
  • Meets code requirements for direct-to-deck
  • No thermal barrier required (see ICC-ES ESR-1006 and UL ER11812-01)

Compressive
Strength¹, psi

R-Value/inch²

75º F

40º F
Plus+ 150 15 4.2 4.6
Plus+ 250 25 4.4 4.8
Plus+ 400 40 4.4 4.8
Plus+ 600 60 4.5 4.9
¹Compressive strength @10% deformation.
²R-Value and thicknesses to meet your needs.


Foam-Control® Plus+® Outperforms XPS and Polyiso

  • Foam-Control® Plus+® provides more R-value at a lower cost 
  • XPS and Polyiso use blowing agents that cause R-value loss over time
  • Polyiso loses R-value during cold and extreme high temperature exposure 
  • Foam-Control® Plus+® has a stable long term R-value
  • Foam-Control® Plus+® available in 15, 25, 40, and 60 psi strengths at a lower cost 
  • Foam-Control® Plus+® has a superior drying potential
  • Foam-Control® Plus+® is more vapor permeable to help avoid moisture problems