Spray FoamBuilding Insulation Kerry Cork Clare Limerick

Closed-Cell vs. Open-Cell

Spray Foam Insulation: Closed-Cell vs. Open-Cell

Spray Foam: Closed-Cell vs. Open-Cell


What’s the Difference – Open Cell and Closed Cell Foams

The importance of distinguishing between the two types of spray polyurethane foam cannot be understated. When it comes time to insulate a home or commercial building, you must opt for open-cell foam or closed-cell foam, or a specific combination thereof. Each type of foam distinctly impacts project costs, application methods, and building performance. There are two major factors distinguishing closed-cell and open-cell foams: structure and density.

Cell Structure

The structure of open-cell foam consists of tiny bubbles or cells that aren’t fully encapsulated–they are broken, torn, ripped, etc. Because they’re broken, air fills the open space inside the bubble, which results in a soft, spongy material.

Closed-cell foam differs in that every bubble or cell that makes up the foam is completely encapsulated and packed tightly together. The bubbles aren’t filled with air, but rather a gas that aids foam expansion and insulation properties. This results in an altogether harder, stronger material than open-cell foam.

The blowing agent, which aids in forming the bubbles or cells that make up SPF’s foam structure, is usually water for open-cell and high-R-value chemicals for closed-cell.

Closed-Cell vs. Open-Cell Material Density

Closed-cell foam is roughly four times as dense as open-cell for insulation applications. To ascertain foam density, one cubic foot (cu. ft.) of foam material is weighed. Open-cell tends to be roughly 0.5 lb./cu. ft. in density, whereas closed-cell ranges from 1.7 to 3.0 lb./cu. ft. in density, or even higher for certain applications. (Note: these density figures are rough averages. Every SPF product will differ based on its formulation.)

Insulation Values

R-value is a way to denote a material’s insulating properties, and the higher the number per unit thickness, the better the insulation value. Closed-cell spray foam has an R-value of about 6.0 per inch (R-6), while open-cell SPF comes in at roughly R-3.5. (Note: these R-values are rough averages. Every SPF product will differ based on its formulation.)

Read more about Closed Cell Spray Foams and Open Cell Spray Foams







Spray FoamSoundproofing with Spray Foam

Soundproof Systems

Spray Foam Soundproofing Systems and Airtight Systems Qualities

Spray foam expands to fill all cracks and crevices. This ensures an airtight system is in place.

The Airtight Insulation Solution

Air Tightness Systems

Reduce Air Leakage

Air leakage is a common problem that results in higher heating and cooling costs for some property owners. Spray foam insulation application helps prevent air leakage, as the solution expands up to 100 times its volume to fill cracks and holes that otherwise would contribute to this issue.

Selecting the correct type of insulation for improving air tightness within a structure is an important decision as some insulation methods are more effective than others.

Suitable for attics and new extensions.

The air tightness spray insulation are most suitable for a verity of reasons. Unlike most other forms of insulation, our insulation guarantees an air tight seal in its results.

Can be Sprayed on any surface

Sprayed on any surface, our spray foam insulation expands rapidly from its liquid state and perfectly seals any gap or crevice ensuring the perfect air tight, heat loss barrier and providing a neat finish.


POC 500 Spray Foam installers in Kerry Cork Limerick

Open Cell Spray Foams

POC 500 – Open cell spray foam

We use a POC 500 is an open cell spray foam from Ekovision is a breathable spray foam insulation. It has many applications in household and commercial structures where a breathable insulation is required.

Advantages of POC 500

The many advantages over other spray foams and traditional insulation materials whether your in Kerry, Cork, Clare, Limerick or Tipperary.

  • Better air quality
  • Gets rid of drafts and condensation
  • Adds structural integrity
  • Fills irregular shapes
  • Seals cracks and voids
  • Does not settle or shrink
  • Reduces ice damages
  • Reduces noise
  • Reduces the likelihood of mold
  • Reduces dust and pollen infiltration
  • Reduces air and moisture infiltration
  • R-values remain stable over time
  • Highest performance insulation
  • Helps to create a thermal envelope controlling the air inside the building
  • Warm in winter, cool in summer
  • Reduce amount of allergens, pollutants and moisture
  • Better energy efficiency

We stock and use Open Cell Spray Foams on Timber Frame New Construction Wall, Existing & New Pitched Ceiling Level Insulation, Existing & New Pitched Ceilings Warm Roof, Existing & New Ceiling Level Insulation, Flat Roofs Pitched 15 Degrees or Less, Suspended Timber Floor, Stone Wall Timber stud, Hollow Block Wall Timber Stud, Cavity wall dry-lining Timber Stud, Mass Concrete Dry-lining Timber Stud, House extensions and renovations in all Munster towns and counties.