Is XPS insulation flammable?
While the code requirements for continuous insulation help to improve efficiency, they raise another challenge: the foam plastic insulations commonly used for continuous insulation—polyisocyanurate aka polyiso, expanded polystyrene also known as EPS, extruded polystyrene aka XPS and spray polyurethane foam or SPF—are …
Is XPS fire retardant?
Dow Building Solutions, a global business unit of DowDuPont Specialty Products division, announced that all STYROFOAM Brand extruded polystyrene (XPS) foam plants in the United States are now producing the insulation with BLUEDGE polymeric flame retardant technology, a sustainable flame retardant alternative.
Is XPS fire rated?
Fire-resistance-rated walls There are many listed fire rated wall assemblies that contain Styrofoam™ Brand XPS Insulation or Thermax™ Brand Insulation.
Is insulation foam fireproof?
Yes, spray foam — like all foam plastic materials — is flammable. However (and here is where that fire rating comes in), a “class 1 hour fire rating” means that the material can resist exposure to a standardized fire for one hour.
Is XPS heat resistant?
XPS foam insulation has a consistent long-term thermal resistance even in wet conditions and at low temperatures. It maintains its thermal and mechanical performance throughout the life of the building.
What temperature does XPS melt?
insulating building envelopes effectively The service temperature of XPS is typically limited to about 165°F. This falls in line with the instability of a thermoplastic material. In fact, according to an industry Material Safety Data Sheet (MSDS), XPS begins to melt at 194°F.
Is rigid foam insulation flammable?
“Rigid polyurethane and polyisocyanurate foams will, when ignited, burn rapidly and produce intense heat, dense smoke and gases which are irritating, flammable and/or toxic. As with other organic [carbon based petrochemical] materials the most significant gas is usually carbon monoxide.
What insulation is flammable?
Fiberglass Insulation That being said, SOME fiberglass facings, such as kraft paper and foil are combustible. “Faced insulation” is insulation that has a paper vapor retardant, used for moisture control. Facings can be found in batt insulation and must never be left exposed.
Does XPS foam absorb water?
FOAMULAR® XPS products have an R-value of 5 per inch of thickness, and due to their closed cell structure they resist water absorption, maintaining a high R-value for reliable long term service.
Does XPS insulation off gas?
XPS is Rated at R5 per inch, but it will off-gas and lose some insulation performance over time – especially below-grade and when tested in real-world applications.
What insulation is not flammable?
Fiberglass insulation is made of glass combined with plastic polymers and is naturally fire-resistant.
Can insulation catch fire?
Since the insulation is made from glass, fiberglass insulation is considered non-flammable and will not catch fire. However, the paper and foil backings can catch on fire. Fiberglass manufacturers can add flame-retardant adhesives and foils to kraft paper backings.
What is the least flammable insulation?
Cellulose that is composed of foam material is even less easily combustible, as it’s able to withstand temperatures up to 400 degrees.
Is XPS vapor permeable?
Therefore, 1 inch of XPS is considered to be vapor semi-permeable, while 2 inches is considered to be vapor semi-impermeable.
Does foam board off gas?
Does spray foam insulation off-gas? The quick answer to that question is yes. When contractors talk about off-gassing, what they’re talking about is the VOCs that cause the off-gassing.
What temperature does XPS foam melt?
The service temperature of XPS is typically limited to about 165°F. This falls in line with the instability of a thermoplastic material. In fact, according to an industry Material Safety Data Sheet (MSDS), XPS begins to melt at 194°F.
What is XPS foam insulation?
Styrofoam™ Brand Highload™ Extruded Polystyrene Foam Insulation is a closed-cell foam insulation designed for use in runways and other heavy-weight infrastructure. Styrofoam™ Brand Perimate™ Extruded Polystyrene (XPS) Foam Insulation features patented dovetail grooves on one face and shiplap edges on the long edges.
Are EPs and XPS insulation good for moisture protection?
Unlike most other insulation materials both EPS and XPS are good at keeping moisture out because of their hydrophobic, non-hygroscopic, and closed cell properties.
Why choose Foamular® XPS?
FOAMULAR® XPS Fabrication Billets provide raw stock to commercial pipe fabricators from which individual pipe insulation parts can be cut. Used as low-temperature pipe and equipment insulation, FOAMULAR® XPS Pipe Insulation is ideal for various cold service applications – including ammonia/refrigeration, and food and beverage service processing.
Why choose Owens Corning Foamular® XPS insulation?
The most important characteristic of insulation is its ability to retain its insulating power (R-value) over long periods of time. Owens Corning® FOAMULAR® XPS insulation is proven to hold its R-Value better than EPS – and even more so when water is present*, such as in below-grade applications.