SKU / Product Info	Quantity
FOAMULAR 404 1 1/2 in 1 1/2 in Thickness
FOAMULAR 404 2 1/2 in 2 1/2 in Thickness
FOAMULAR 404 2 in 2 in Thickness
FOAMULAR 404 3 in 3 in Thickness
FOAMULAR 404 4 in 4 in Thickness
FOAMULAR 404 RB 2 in 2 in Thickness
FOAMULAR 404 RB 3 in 3 in Thickness
FOAMULAR 604 1 1/2 in 1 1/2 in Thickness
FOAMULAR 604 2 in 2 in Thickness
FOAMULAR 604 3 in 3 in Thickness
FOAMULAR 604 RB 1 1/2 in 1 1/2 in Thickness
FOAMULAR 604 RB 2 in 2 in Thickness
FOAMULAR 604 RB 3 in 3 in Thickness

Quick Overview

FOAMULAR® 404 and 604 insulation products protect the roof membrane from physical damage, thermal stress and UV exposure in PRMA systems
Designed for use directly with pavers, FOAMULAR® 404 RB and 604 RB insulation products provide the support necessary for pavers while maintaining the drainage necessary to prevent moisture accumulation at the foam-paver interface
Excellent long-term stable insulating performance with an R-value of R-5 per inch
Exceptional moisture resistance, long-term durability
Limited lifetime warranty—maintains 90% of R-value and covers all ASTM C578 properties
The only XPS foam to be GREENGUARD Children & Schools Certified
The only XPS foam with certified recycled content—certified by Scientific Certification Systems (SCS) to contain a minimum 20% recycled content
Will not corrode, rot or support mold growth
Zero ozone depletion potential with 70% less global warming potential than our previous formula
Reusable

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Details

FOAMULAR® 404 and FOAMULAR® 604 extruded polystyrene (XPS) insulations are specially designed for use in Protected Roof Membrane Assemblies (PRMA), where the insulation is placed directly over the membrane. The compressive strength of FOAMULAR® insulation provides the integrity needed for long-term roof performance. FOAMULAR® insulation is produced by Owens Corning’s patented HYDROVAC® process technology under conditions of strict quality control.

Extruded polystyrene is the only type of insulation recommended for PRMA applications. Owens Corning offers four specific types of FOAMULAR® insulation for this use: FOAMULAR® 404 & 604, both featuring drainage channels on all four bottom edges; and FOAMULAR® 404 RB & 604 RB. FOAMULAR® 404 RB and 604 RB have four bottom edge drainage channels, and drainage channels running the length of the panel on the top surface as well.

With a minimum of 40 psi compressive strength, FOAMULAR® 404 insulation meets the needs of many PRMA applications. For even greater strength, specify the 60 psi compressive strength of OAMULAR® 604 insulation. Both products feature rain channels on all four bottom edges to promote drainage below the insulation.

FOAMULAR® 404 RB and FOAMULAR® 604 RB insulation products are used when the insulation is to be placed directly beneath concrete or other types of paver blocks, eliminating the need for pedestals resulting in significant labor and material savings. These high compressive strength, high durability products are used as the insulation layer placed under the ballast of the PRMA roof and offer excellent drainage characteristics because they’re manufactured with channels that are cut in the surface of the foam the entire length of each panel. Coupled with the standard bottom-side rain channels, the top side channels help drain moisture away from the underside of the paver to protect it from freeze/thaw cycle damage.

Additional Information

Manufacturer: Owens Corning

For More Information on the FOAMULAR® 404, 604, 404 RB & 604 RB Extruded Polystyrene (XPS) Rigid Foam Insulation, [Click Here] to Link to Manufacturer Web Site

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